The chop() function Generate a single-byte string from a number.
This function complements ord().
Syntax
chr ( int $codepoint ) : string
Parameter Values
codepoint : An integer between 0 and 255.
Technical Details
Return Value : A single-character string containing the specified byte.
PHP Version : PHP 4, PHP 5, PHP 7, PHP 8
Examples
<?php
echo chr(42) . "<br>"; // Decimal value
echo chr(042) . "<br>"; // Octal value
echo chr(0x42) . "<br>"; // Hex value
?>
Output :
*
"
B
<?php
$str = chr(43);
$str2 = chr(61);
echo("2 $str 2 $str2 4");
?>
Output :
2 + 2 = 4
Read More details : https://www.php.net/manual/en/function.chr.php
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