strlen
(PHP 3, 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
例 1. A strlen() example
<?php
$str = 'abcdef';
echo strlen($str); // 6
$str = ' ab cd ';
echo strlen($str); // 7
?>
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