chr
chr
(PHP 4, PHP 5, PHP 7)
chr — Return a specific character
Description
string chr ( int $ascii )
Returns a one-character string containing the character specified by ascii.
This function complements ord().
Parameters
-
ascii -
The extended ASCII code.
Values outside the valid range (0..255) will be bitwise and'ed with 255, which is equivalent to the following algorithm:
while ($ascii < 0) { $ascii += 256; } $ascii %= 256;
Return Values
Returns the specified character.
Examples
Example #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);
?> Example #2 Overflow behavior
<?php echo chr(-159), chr(833), PHP_EOL; ?>
The above example will output:
aA
See Also
- sprintf() - Return a formatted string with a format string of %c
- ord()
- An » ASCII-table
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/function.chr.php
