PHP 手冊
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# chr

(PHP 3, PHP 4 , PHP 5)

chr -- Return a specific character

## Description

string chr ( int ascii )

Returns a one-character string containing the character specified by ascii.

範例 1. chr() example

`<?php $str = "The string ends in escape: "; $str .= chr(27); /* add an escape character at the end of $str */ /* Often this is more useful */ $str = sprintf("The string ends in escape: %c", 27); ?>`

You can find an ASCII-table over here: http://www.asciitable.com.

This function complements ord(). See also sprintf() with a format string of %c.

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