strlen

名称:strlen

分类:字符串

所属语言:php

一句话介绍:返回字符串的长度。

实例

例子 1

函数返回字符串 "Shanghai" 的长度：

<span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">echo</span> <span class="token function">strlen</span><span class="token punctuation">(</span><span class="token string double-quoted-string">"Shanghai"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

亲自试一试

例子 2

返回字符串 "I love Shanghai!" 的长度：

<span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">echo</span> <span class="token function">strlen</span><span class="token punctuation">(</span><span class="token string double-quoted-string">"I love Shanghai!"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

亲自试一试