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计算黑色的针头数量
原标题:Find the number of needles in a haystack
  • 时间:2012-05-12 14:08:49
  •  标签:
  • php
  • strpos

我需要找到一个针头出现在灰色中的几倍。 直到这一点为止,我制定了以下法典:

<?php

$haystack =  http://www.google.com ;
$needle =  a ;
$contents = file_get_contents($haystack);

?>

我想找到一个(针头)的次数出现在元件中(沙斯特法克-古里戈.com源代码)。

谢谢。

最佳回答

substr_count 这正是你所期待的。

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