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strlen

(PHP 4, PHP 5)

strlen — Get string length

Category:
Function name:

(PHP 4, PHP 5)

strlen — Get string length

int strlen(string $string)

$string:

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int strlen ( string $string )

Returns the length of the given string.

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

Example #1 A strlen() example


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

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

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.

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.