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chr

Tags: PHP 5.x PHP 7.x PHP 8.x

chr — Find the position of the first occurrence of a substring in a string.

Description

chr(
    int $codepoint
): string
Returns a one-character string containing the character specified by interpreting codepoint as an unsigned integer.
This can be used to create a one-character string in a single-byte encoding such as ASCII, ISO-8859, or Windows 1252, by passing the position of a desired character in the encoding's mapping table. However, note that this function is not aware of any string encoding, and in particular cannot be passed a Unicode code point value to generate a string in a multibyte encoding like UTF-8 or UTF-16.
This function complements ord().

Parameters

codepoint
An integer between 0 and 255.

Return Values

A single-character string containing the specified byte.

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