(PHP 4, PHP 5, PHP 7)
chr — Return a specific character
$ascii
)
Returns a one-character string containing the character specified
by ascii.
This function complements ord().
asciiThe extended ASCII code.
Values outside the valid range (0..255) will be bitwise and'ed with 255, what is equivalent to the following algorithm:
while ($ascii < 0) {
$ascii += 256;
}
$ascii %= 256;
Returns the specified character.
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