(PHP 4, PHP 5)
strlen — Get string length
Returns the length of the given string.
The length of the string on success, and 0 if the string is empty.
Version | Description |
---|---|
5.3.0 | Prior versions treated arrays as the string Array, thus returning a string length of 5 and emitting an E_NOTICE level error. |
Example #1 A strlen() example
<?php
$str = 'abcdef';
echo strlen($str); // 6
$str = ' ab cd ';
echo strlen($str); // 7
?>
Note:
strlen() returns NULL when executed on arrays, and an E_WARNING level error is emitted.