strtok

实例

逐一分割字符串：

在下例中，请注意，我们仅在第一次调用 strtok() 函数时使用了 string 参数。在首次调用后，该函数仅需要 split 参数，这是因为它清楚自己在当前字符串中所在的位置。如需分割一个新的字符串，请再次调用带 string 参数的 strtok()：

<span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$string</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"Hello world. Beautiful day today."</span><span class="token punctuation">;</span>
<span class="token variable">$token</span> <span class="token operator">=</span> <span class="token function">strtok</span><span class="token punctuation">(</span><span class="token variable">$string</span><span class="token punctuation">,</span> <span class="token string double-quoted-string">" "</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

<span class="token keyword">while</span> <span class="token punctuation">(</span><span class="token variable">$token</span> <span class="token operator">!==</span> <span class="token constant boolean">false</span><span class="token punctuation">)</span>
<span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token string double-quoted-string">"<span class="token interpolation"><span class="token variable">$token</span></span><br>"</span><span class="token punctuation">;</span>
<span class="token variable">$token</span> <span class="token operator">=</span> <span class="token function">strtok</span><span class="token punctuation">(</span><span class="token string double-quoted-string">" "</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token delimiter important">?></span></span>

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