php array_count_values 用法详解
- WBOYOriginal
- 2016-06-21 08:53:141435browse
array_count_values — 统计数组中所有的值出现的次数
说明
array array_count_values ( array $input )array_count_values() 返回一个数组，该数组用 input 数组中的值作为键名，该值在 input 数组中出现的次数作为值。
Example #1 array_count_values() 例子
<span style="color: rgb(0,0,0)"><font face="NSimsun"><span style="color: rgb(0,0,187)"><?php <br/>
$array </span><span style="color: rgb(0,119,0)">= array(</span><span style="color: rgb(0,0,187)">1</span><span style="color: rgb(0,119,0)">, </span><span style="color: rgb(221,0,0)">"hello"</span><span style="color: rgb(0,119,0)">, </span><span style="color: rgb(0,0,187)">1</span><span style="color: rgb(0,119,0)">, </span><span style="color: rgb(221,0,0)">"world"</span><span style="color: rgb(0,119,0)">, </span><span style="color: rgb(221,0,0)">"hello"</span></font><font face="NSimsun"><span style="color: rgb(0,119,0)">);<br>
</span><span style="color: rgb(0,0,187)">print_r</span><span style="color: rgb(0,119,0)">(</span><span style="color: rgb(0,0,187)">array_count_values </span><span style="color: rgb(0,119,0)">(</span><span style="color: rgb(0,0,187)">$array</span></font><font face="NSimsun"><span style="color: rgb(0,119,0)">));<br>
</span><span style="color: rgb(0,0,187)">?></span>
</font></span>
上例将输出：
Array<br>(<br> [1] => 2<br> [hello] => 2<br> [world] => 1<br>)<br>
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