strlen

實例

例子1

函數返回字符串"Shanghai" 的長度：

 <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>

親自試一試

例子2

返回字符串"I love Shanghai!" 的長度：

 <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>

親自試一試