Solved Delete files with certain file extensions

Hi,

Right now i am using the code below to delete all the files in a given directiory and delete the folder.

PHP:




    /**
    * Recursively delete a directory
    *
    * @param string $dir
    *           Directory name
    * @param boolean $deleteRootToo
    *           Delete specified top-level directory as well
    */
    public function unlinkRecursive($dir, $deleteRootToo) {
        if (! $dh = @opendir ( $dir )) {
            return;
        }
        while ( false !== ($obj = readdir ( $dh )) ) {
            if ($obj == '.' || $obj == '..') {
                continue;
            }
          
            if (! @unlink ( $dir . '/' . $obj )) {
                $this->unlinkRecursive ( $dir . '/' . $obj, true );
            }
        }
      
        closedir ( $dh );
      
        if ($deleteRootToo) {
            @rmdir ( $dir );
        }
      
        return;

}


However i would like to know how, instead of deleting every file, how can i delete all the files that have the extension mcr forexample? that would mean that if the folder contained files with diffrent extensions. such as mcr, mca, mcapm etc, it would only delete all the mcr files.

Weird question but please help me

 

Use substr.

PHP:

function fileHasExtension(string $file, string $extension) : bool{
    return substr($file, -strlen($extension)) === $extension;
}


 

Very grateful for your help however iv tried playing round with that bit of code in my one but i cant seem to get it to work. im not really sure what the right way is to add it :/

this is what i tried

PHP:

  /**
    * Recursively delete a directory
    *
    * @param string $dir
    *           Directory name
    * @param boolean $deleteRootToo
    *           Delete specified top-level directory as well
    */
    public function unlinkRecursive($dir, $deleteRootToo) {
        if (! $dh = @opendir ( $dir )) {
            return;
        }
        while ( false !== ($obj = readdir ( $dh )) ) {
            if ($obj == '.' || $obj == '..') {
                continue;
            }
          
            if (! @unlink ( $dir . '/' . $obj )) {
if($this->fileHasExtension($obj, "mcr")){
                $this->unlinkRecursive ( $dir . '/' . $obj, true );
            }
        }
}
      
        closedir ( $dh );
      
        if ($deleteRootToo) {
            @rmdir ( $dir );
        }
      
        return;

}
function fileHasExtension(string $file, string $extension) : bool{
    return substr($file, 0, strlen($extension)) === $extension;
}

please help

 

Hey, really sorry. I don't quite get along with some php functions. I've updated my snippet. Try it

 

I just coudnt get around implementing it properly. I used this instead

PHP:

function unlink_recursive($dir_name, $ext) {

    // Exit if there's no such directory
    if (!file_exists($dir_name)) {
        return false;
    }

    // Open the target directory
    $dir_handle = dir($dir_name);

    // Take entries in the directory one at a time
    while (false !== ($entry = $dir_handle->read())) {

        if ($entry == '.' || $entry == '..') {
            continue;
        }

        $abs_name = "$dir_name/$entry";

        if (is_file($abs_name) && preg_match("/^.+\.$ext$/", $entry)) {
            if (unlink($abs_name)) {
                continue;
            }
            return false;
        }

        // Recurse on the children if the current entry happens to be a "directory"
        if (is_dir($abs_name) || is_link($abs_name)) {
            unlink_recursive($abs_name, $ext);
        }

    }

    $dir_handle->close();
    return true;

}

from https://stackoverflow.com/questions/12869601/how-to-delete-all-txt-files-from-a-directory-using-php

Thanks for your help though