strlen

(PHP 4, PHP 5, PHP 7, PHP 8)

strlen — Get string length

Description

strlen(string $string): int

Returns the length of the given string.

Parameters

string

The string being measured for length.

Return Values

The length of the string on success, and 0 if the string is empty.

Examples

Example #1 A strlen() example

<?php
$str = 'abcdef';
echo strlen($str); // 6

$str = ' ab cd ';
echo strlen($str); // 7
?>

Notes

Note:

strlen() returns the number of bytes rather than the number of characters in a string.

Note:

strlen() returns null when executed on arrays, and an E_WARNING level error is emitted.

See Also