ord()

ord() — Convert the first byte of a string to a value between 0 and 255.

Built-in function of PHP 8.5. The manual lists it as available in PHP 4, PHP 5, PHP 7, PHP 8. This page is the reference card: signature, parameters and return value, plus the changelog and the example the manual provides.

What it does

Interprets the binary value of the first byte of character as an unsigned integer between 0 and 255.

Signature

ord(string $character): int

Parameters

Return value

An integer between 0 and 255.

Example

A runnable snippet:

$str = "\n"; if (ord($str) == 10) { echo "The first character of \$str is a line feed.\n"; }

Changelog

See also

chr(), mb_ord()

All PHP 8.5 built-in functions

Reference card built from the PHP manual page ord() (PHP documentation, CC BY 3.0). The page is generated from the manual, so the wording of the parameter and return value text follows php.net.