php 操作目录

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$arr = scandir($dir); 
$all = count($arr)-2;//所有文件总数除./和../
$php = count(preg_grep("/\.php$/", $arr));
$txt0 = $all - count(preg_grep("/\.txt$/", $arr));
echo '共有'.$all.'个文件,php文件'.$php.'个,非txt文件'.$txt0.'个';

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转载自blog.csdn.net/flightsmallbird/article/details/78509451