PHP随机获取标签内容解决方案

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Release: 2016-06-13 11:49:01
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PHP随机获取标签内容
demo.txt


这是1


这是2


这是3


这是4


这是5



请问PHP如何随机获取demo文件内某个P标签内的内容。譬如随机输出:这是3
------解决方案--------------------
$ar = preg_grep('/

shuffle($ar);
echo $ar[0];
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