PHP如何删除文件或文件夹
有时候我们需要用PHP来删除文件和文件夹,PHP本来也都有函数可以实现,下面简单记录一下代码,方便以后信守拈来。先看一下代码
<? function deldir($dir) { //先删除目录下的文件: $dh=opendir($dir); while ($file=readdir($dh)) { if($file!="." && $file!="..") { $fullpath=$dir."/".$file; if(!is_dir($fullpath)) { unlink($fullpath); } else { deldir($fullpath); } } } closedir($dh); //删除当前文件夹: if(rmdir($dir)) { return true; } else { return false; } } ?>
unlink() 函数用于删除文件。若成功,则返回 true,失败则返回 false。rmdir() 函数用于删除空的目录。它尝试删除 dir 所指定的目录。 该目录必须是空的,而且要有相应的权限。
一个实例:删除某个文件夹下的所有".svn"文件夹(包括其内容也要被删除)。
<?php function delsvn($dir) { $dh=opendir($dir); //找出所有".svn" 的文件夹: while ($file=readdir($dh)) { if($file!="." && $file!="..") { $fullpath=$dir."/".$file; if(is_dir($fullpath)) { if($file==".svn"){ delsvndir($fullpath); }else{ delsvn($fullpath); } } } } closedir($dh); } function delsvndir($svndir){ //先删除目录下的文件: $dh=opendir($svndir); while($file=readdir($dh)){ if($file!="."&&$file!=".."){ $fullpath=$svndir."/".$file; if(is_dir($fullpath)){ delsvndir($fullpath); }else{ unlink($fullpath); } } } closedir($dh); //删除目录文件夹 if(rmdir($svndir)){ return true; }else{ return false; } } $dir=dirname(__FILE__); //echo $dir; delsvn($dir); ?>

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