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561 lines
13 KiB
PHP
561 lines
13 KiB
PHP
<?php
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namespace Safe;
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use Safe\Exceptions\StringsException;
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/**
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* convert_uudecode decodes a uuencoded string.
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*
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* @param string $data The uuencoded data.
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* @return string Returns the decoded data as a string.
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* @throws StringsException
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*
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*/
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function convert_uudecode(string $data): string
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{
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error_clear_last();
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$result = \convert_uudecode($data);
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if ($result === false) {
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throw StringsException::createFromPhpError();
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}
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return $result;
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}
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/**
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* convert_uuencode encodes a string using the uuencode
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* algorithm.
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*
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* Uuencode translates all strings (including binary data) into printable
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* characters, making them safe for network transmissions. Uuencoded data is
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* about 35% larger than the original.
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*
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* @param string $data The data to be encoded.
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* @return string Returns the uuencoded data.
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* @throws StringsException
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*
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*/
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function convert_uuencode(string $data): string
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{
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error_clear_last();
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$result = \convert_uuencode($data);
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if ($result === false) {
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throw StringsException::createFromPhpError();
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}
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return $result;
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}
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/**
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* Decodes a hexadecimally encoded binary string.
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*
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* @param string $data Hexadecimal representation of data.
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* @return string Returns the binary representation of the given data.
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* @throws StringsException
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*
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*/
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function hex2bin(string $data): string
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{
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error_clear_last();
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$result = \hex2bin($data);
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if ($result === false) {
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throw StringsException::createFromPhpError();
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}
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return $result;
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}
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/**
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* Calculates the MD5 hash of the file specified by the
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* filename parameter using the
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* RSA Data Security, Inc.
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* MD5 Message-Digest Algorithm, and returns that hash.
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* The hash is a 32-character hexadecimal number.
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*
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* @param string $filename The filename
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* @param bool $raw_output When TRUE, returns the digest in raw binary format with a length of
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* 16.
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* @return string Returns a string on success, FALSE otherwise.
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* @throws StringsException
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*
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*/
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function md5_file(string $filename, bool $raw_output = false): string
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{
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error_clear_last();
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$result = \md5_file($filename, $raw_output);
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if ($result === false) {
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throw StringsException::createFromPhpError();
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}
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return $result;
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}
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/**
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* Calculates the metaphone key of str.
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*
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* Similar to soundex metaphone creates the same key for
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* similar sounding words. It's more accurate than
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* soundex as it knows the basic rules of English
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* pronunciation. The metaphone generated keys are of variable length.
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*
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* Metaphone was developed by Lawrence Philips
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* <lphilips at verity dot com>. It is described in ["Practical
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* Algorithms for Programmers", Binstock & Rex, Addison Wesley,
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* 1995].
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*
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* @param string $str The input string.
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* @param int $phonemes This parameter restricts the returned metaphone key to
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* phonemes characters in length.
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* The default value of 0 means no restriction.
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* @return string Returns the metaphone key as a string.
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* @throws StringsException
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*
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*/
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function metaphone(string $str, int $phonemes = 0): string
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{
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error_clear_last();
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$result = \metaphone($str, $phonemes);
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if ($result === false) {
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throw StringsException::createFromPhpError();
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}
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return $result;
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}
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/**
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*
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*
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* @param string $filename The filename of the file to hash.
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* @param bool $raw_output When TRUE, returns the digest in raw binary format with a length of
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* 20.
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* @return string Returns a string on success, FALSE otherwise.
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* @throws StringsException
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*
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*/
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function sha1_file(string $filename, bool $raw_output = false): string
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{
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error_clear_last();
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$result = \sha1_file($filename, $raw_output);
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if ($result === false) {
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throw StringsException::createFromPhpError();
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}
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return $result;
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}
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/**
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* Returns a string produced according to the formatting string
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* format.
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*
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* @param string $format The format string is composed of zero or more directives:
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* ordinary characters (excluding %) that are
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* copied directly to the result and conversion
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* specifications, each of which results in fetching its
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* own parameter. This applies to both sprintf
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* and printf.
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*
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* Each conversion specification consists of a percent sign
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* (%), followed by one or more of these
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* elements, in order:
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*
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*
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*
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* An optional sign specifier that forces a sign
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* (- or +) to be used on a number. By default, only the - sign is used
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* on a number if it's negative. This specifier forces positive numbers
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* to have the + sign attached as well.
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*
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*
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*
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*
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* An optional padding specifier that says
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* what character will be used for padding the results to the
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* right string size. This may be a space character or a
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* 0 (zero character). The default is to pad
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* with spaces. An alternate padding character can be specified
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* by prefixing it with a single quote (').
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* See the examples below.
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*
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*
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*
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*
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* An optional alignment specifier that says
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* if the result should be left-justified or right-justified.
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* The default is right-justified; a -
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* character here will make it left-justified.
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*
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*
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*
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*
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* An optional number, a width specifier
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* that says how many characters (minimum) this conversion should
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* result in.
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*
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*
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*
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*
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* An optional precision specifier in the form
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* of a period (.) followed by an optional decimal digit string
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* that says how many decimal digits should be displayed for
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* floating-point numbers. When using this specifier on a string,
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* it acts as a cutoff point, setting a maximum character limit to
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* the string. Additionally, the character to use when padding a
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* number may optionally be specified between the period and the
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* digit.
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*
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*
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*
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*
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* A type specifier that says what type the
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* argument data should be treated as. Possible types:
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*
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*
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* % - a literal percent character. No
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* argument is required.
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*
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*
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* b - the argument is treated as an
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* integer and presented as a binary number.
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*
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*
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* c - the argument is treated as an
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* integer and presented as the character with that ASCII
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* value.
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*
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*
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* d - the argument is treated as an
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* integer and presented as a (signed) decimal number.
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*
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*
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* e - the argument is treated as scientific
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* notation (e.g. 1.2e+2).
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* The precision specifier stands for the number of digits after the
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* decimal point since PHP 5.2.1. In earlier versions, it was taken as
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* number of significant digits (one less).
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*
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*
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* E - like %e but uses
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* uppercase letter (e.g. 1.2E+2).
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*
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*
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* f - the argument is treated as a
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* float and presented as a floating-point number (locale aware).
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*
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*
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* F - the argument is treated as a
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* float and presented as a floating-point number (non-locale aware).
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* Available since PHP 5.0.3.
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*
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*
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* g - shorter of %e and
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* %f.
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*
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*
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* G - shorter of %E and
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* %F.
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*
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*
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* o - the argument is treated as an
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* integer and presented as an octal number.
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*
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*
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* s - the argument is treated as and
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* presented as a string.
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*
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*
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* u - the argument is treated as an
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* integer and presented as an unsigned decimal number.
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*
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*
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* x - the argument is treated as an integer
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* and presented as a hexadecimal number (with lowercase
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* letters).
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*
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*
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* X - the argument is treated as an integer
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* and presented as a hexadecimal number (with uppercase
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* letters).
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*
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*
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*
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*
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*
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*
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* A type specifier that says what type the
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* argument data should be treated as. Possible types:
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*
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*
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* % - a literal percent character. No
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* argument is required.
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*
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*
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* b - the argument is treated as an
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* integer and presented as a binary number.
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*
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*
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* c - the argument is treated as an
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* integer and presented as the character with that ASCII
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* value.
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*
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*
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* d - the argument is treated as an
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* integer and presented as a (signed) decimal number.
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*
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*
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* e - the argument is treated as scientific
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* notation (e.g. 1.2e+2).
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* The precision specifier stands for the number of digits after the
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* decimal point since PHP 5.2.1. In earlier versions, it was taken as
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* number of significant digits (one less).
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*
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*
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* E - like %e but uses
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* uppercase letter (e.g. 1.2E+2).
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*
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*
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* f - the argument is treated as a
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* float and presented as a floating-point number (locale aware).
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*
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*
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* F - the argument is treated as a
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* float and presented as a floating-point number (non-locale aware).
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* Available since PHP 5.0.3.
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*
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*
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* g - shorter of %e and
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* %f.
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*
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*
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* G - shorter of %E and
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* %F.
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*
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*
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* o - the argument is treated as an
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* integer and presented as an octal number.
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*
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*
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* s - the argument is treated as and
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* presented as a string.
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*
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*
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* u - the argument is treated as an
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* integer and presented as an unsigned decimal number.
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*
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*
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* x - the argument is treated as an integer
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* and presented as a hexadecimal number (with lowercase
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* letters).
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*
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*
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* X - the argument is treated as an integer
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* and presented as a hexadecimal number (with uppercase
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* letters).
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*
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*
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*
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* Variables will be co-erced to a suitable type for the specifier:
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*
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* Type Handling
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*
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*
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*
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* Type
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* Specifiers
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*
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*
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*
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*
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* string
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* s
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*
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*
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* integer
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*
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* d,
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* u,
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* c,
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* o,
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* x,
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* X,
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* b
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*
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*
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*
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* double
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*
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* g,
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* G,
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* e,
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* E,
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* f,
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* F
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*
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*
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*
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*
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*
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*
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* Attempting to use a combination of the string and width specifiers with character sets that require more than one byte per character may result in unexpected results
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*
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* The format string supports argument numbering/swapping. Here is an
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* example:
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*
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* Argument swapping
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*
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*
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* ]]>
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*
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*
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* This will output "There are 5 monkeys in the tree". But
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* imagine we are creating a format string in a separate file,
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* commonly because we would like to internationalize it and we
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* rewrite it as:
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*
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* Argument swapping
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*
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*
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* ]]>
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*
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*
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* We now have a problem. The order of the placeholders in the
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* format string does not match the order of the arguments in the
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* code. We would like to leave the code as is and simply indicate
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* in the format string which arguments the placeholders refer to.
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* We would write the format string like this instead:
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*
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* Argument swapping
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*
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*
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* ]]>
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*
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*
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* An added benefit here is that you can repeat the placeholders without
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* adding more arguments in the code. For example:
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*
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* Argument swapping
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*
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*
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* ]]>
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*
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*
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* When using argument swapping, the n$
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* position specifier must come immediately
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* after the percent sign (%), before any other
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* specifiers, as shown in the example below.
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*
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* Specifying padding character
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*
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*
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* ]]>
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*
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* The above example will output:
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*
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*
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*
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*
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*
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* Position specifier with other specifiers
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*
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*
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* ]]>
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*
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* The above example will output:
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*
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*
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*
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*
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*
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* The above example will output:
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*
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* The above example will output:
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*
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* Attempting to use a position specifier greater than
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* PHP_INT_MAX will result in
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* sprintf generating warnings.
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*
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* The c type specifier ignores padding and width
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* @param mixed $params
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* @return string Returns a string produced according to the formatting string
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* format.
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* @throws StringsException
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*
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*/
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function sprintf(string $format, ...$params): string
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{
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error_clear_last();
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if ($params !== []) {
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$result = \sprintf($format, ...$params);
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} else {
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$result = \sprintf($format);
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}
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if ($result === false) {
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throw StringsException::createFromPhpError();
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}
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return $result;
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}
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/**
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* Returns the portion of string specified by the
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* start and length parameters.
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*
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* @param string $string The input string. Must be one character or longer.
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* @param int $start If start is non-negative, the returned string
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* will start at the start'th position in
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* string, counting from zero. For instance,
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* in the string 'abcdef', the character at
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* position 0 is 'a', the
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* character at position 2 is
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* 'c', and so forth.
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*
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* If start is negative, the returned string
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* will start at the start'th character
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* from the end of string.
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*
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* If string is less than
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* start characters long, FALSE will be returned.
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*
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*
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* Using a negative start
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*
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*
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* ]]>
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*
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*
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* @param int $length If length is given and is positive, the string
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* returned will contain at most length characters
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* beginning from start (depending on the length of
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* string).
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*
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* If length is given and is negative, then that many
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* characters will be omitted from the end of string
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* (after the start position has been calculated when a
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* start is negative). If
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* start denotes the position of this truncation or
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* beyond, FALSE will be returned.
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*
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* If length is given and is 0,
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* FALSE or NULL, an empty string will be returned.
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*
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* If length is omitted, the substring starting from
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* start until the end of the string will be
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* returned.
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* @return string Returns the extracted part of string;, or
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* an empty string.
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* @throws StringsException
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*
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*/
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function substr(string $string, int $start, int $length = null): string
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{
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error_clear_last();
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if ($length !== null) {
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$result = \substr($string, $start, $length);
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} else {
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$result = \substr($string, $start);
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}
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if ($result === false) {
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throw StringsException::createFromPhpError();
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}
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return $result;
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}
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