strcasecmp

實例

例子1

比較兩個字符串（不區分大小寫）：

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">echo</span> <span class="token function">strcasecmp</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"shanghai"</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>

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例子2

比較兩個字符串（不區分大小寫，HELLO 和hELLo 輸出相同）：

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

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例子3

不同的返回值：

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">echo</span> <span class="token function">strcasecmp</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Hello world!"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"HELLO WORLD!"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token comment">// 兩字符串相等</span>
<span class="token keyword">echo</span> <span class="token function">strcasecmp</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Hello world!"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"HELLO"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token comment">// <i>string1</i>大於<i>string2</i></span>
<span class="token keyword">echo</span> <span class="token function">strcasecmp</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Hello world!"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"HELLO WORLD! HELLO!"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token comment">// <i>string1</i>小於<i>string2</i></span>
<span class="token delimiter important">?></span></span>

親自試一試