<?php
$str = '我需要安慰';//获取字符串长度
$ch = 'i need av';
$love = 'I love you';
$length_str = mb_strlen($str,"UTF8");
$length_ch = strlen($ch);
$length_love = strlen($love);
echo $length_str.'<br/>';
echo $length_ch.'<br/>';
echo $length_love;
?>
