Catalog Custom Functions

PHP does not provide the function of querying directory size, copying directories, deleting directories with files, we need to write our own

This function simply passes a URL and can recursively query the file size in the directory to count the size of the directory

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 Php2     functionDirsize ($dir){3         $dirsize= 0;4         $url=Opendir($dir);5          while($filename=Readdir($url)){6             $file=$dir.' /'.$filename;7             if(! ($filename=='.' ||$filename=='..')){8                 if(Is_dir($file)){9                     $dirsize+ = Dirsize ($file);Ten}Else{ One                     $dirsize+=filesize($file); A                 } -             } -         } the         Closedir($url); -         return $dirsize; -}

This function needs to pass two URLs, namely the old directory and the new directory, to copy the directory and the file

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 Php2     functionCopydir ($DIRSRC,$dirTo){3         if(Is_file($dirTo))4         {5             Echo' Destination is not a directory cannot be created! ';6             return;7         }8         if(!file_exists($dirTo))9         {Ten             mkdir($dirTo); One         } A         $dir _handle= @Opendir($DIRSRC); -         if($dir _handle) -         { the              while($filename=Readdir($dir _handle)) -             { -                 if($filename! = "." &&$filename!="..") -                 { +                     $subSrcFile=$DIRSRC. "\\".$filename; -                     $subToFile=$dirTo. "\\".$filename; +                       A                      if(Is_dir($subSrcFile)) at                      { -Copydir ($subSrcFile,$subToFile); -                      } -                      if(Is_file($subSrcFile)) -                      { -                           Copy($subSrcFile,$subToFile); in                      } -                 } to             } +             Closedir($dir _handle); -         } the}

This function simply passes a URL, can delete the directory and subdirectories of the file recursively, thus deleting the directory

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 Php2 functionRmdirall ($url){3     //detects whether the directory to open exists4     if(!$dir=@Opendir($url)){5         return false;6     }7      while(false!==($file=Readdir($dir))){8     //exclude current directory from parent directory9         if($file!=="." &&$file!==".."){Ten             $file=$url.' /'.$file; One             //recursively delete a directory A             if(Is_dir($file)){ -Rmdirall ($file); -}Else{ the                 if(@unlink($file)){ -                     Continue; -}Else{ -                     return false; +                 } -             } +         } A         if(@rmdir($url)){ at            return true; -}Else{ -            return false; -         } -     } -}

The above describes the directory of custom functions, including aspects of the content, I hope to be interested in PHP tutorial friends helpful.

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