preg_split

名称:preg_split

分类:正则处理PCRE

所属语言:php

一句话介绍:使用正则表达式的匹配项作为分隔符将字符串拆分为数组。

实例

例子 1

使用 preg_split() 将日期拆分为其组成部分：

<span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$date</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"1970-01-01 00:00:00"</span><span class="token punctuation">;</span>
<span class="token variable">$pattern</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"/[-\s:]/"</span><span class="token punctuation">;</span>
<span class="token variable">$components</span> <span class="token operator">=</span> <span class="token function">preg_split</span><span class="token punctuation">(</span><span class="token variable">$pattern</span><span class="token punctuation">,</span> <span class="token variable">$date</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">print_r</span><span class="token punctuation">(</span><span class="token variable">$components</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

使用 PREG_SPLIT_DELIM_CAPTURE 标志：

<span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$date</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"1970-01-01 00:00:00"</span><span class="token punctuation">;</span>
<span class="token variable">$pattern</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"/([-\s:])/"</span><span class="token punctuation">;</span>
<span class="token variable">$components</span> <span class="token operator">=</span> <span class="token function">preg_split</span><span class="token punctuation">(</span><span class="token variable">$pattern</span><span class="token punctuation">,</span> <span class="token variable">$date</span><span class="token punctuation">,</span> <span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">,</span>
<span class="token constant">PREG_SPLIT_DELIM_CAPTURE</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">print_r</span><span class="token punctuation">(</span><span class="token variable">$components</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

使用 PREG_SPLIT_OFFSET_CAPTURE 标志：

<span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$date</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"1970-01-01"</span><span class="token punctuation">;</span>
<span class="token variable">$pattern</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"/-/"</span><span class="token punctuation">;</span>
<span class="token variable">$components</span> <span class="token operator">=</span> <span class="token function">preg_split</span><span class="token punctuation">(</span><span class="token variable">$pattern</span><span class="token punctuation">,</span> <span class="token variable">$date</span><span class="token punctuation">,</span> <span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">,</span>
<span class="token constant">PREG_SPLIT_OFFSET_CAPTURE</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">print_r</span><span class="token punctuation">(</span><span class="token variable">$components</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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