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Get string length

String Functions

strlen

(PHP 4, PHP 5)

strlen — Get string length

Description

int strlen ( string $string )

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.

Changelog

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.

Examples

Example #1 A strlen() example

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

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

Notes

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

See Also

count() - Count all elements in an array, or something in an object
mb_strlen() - Get string length

String Functions