Strings
PHP Manual

strlen

(PHP 4, PHP 5)

strlen — Get string length

说明

int strlen ( string $string )

Returns the length of the given string .

参数

string

The string being measured for length.

返回值

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

范例

Example#1 A strlen() example

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

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

参见


Strings
PHP Manual