We have seen how a file can be deleted by using unlink function in PHP. The same function can be used along with directory handler to list and delete all the files present inside. We have discussed how to display all the files present inside a directory.
Now let us try to develop a function and to this function we will post directory name as parameter and the function will use unlink command to remove files by looping through all the files of the directory. Here is the code to this. function EmptyDir($dir) { $handle=opendir($dir); while (($file = readdir($handle))!==false) { echo "$file <br>"; @unlink($dir.'/'.$file); } closedir($handle); } EmptyDir('images'); Here images is the directory name we want to empty Deleting Selected files through checkboxesAs we know how to display all files of a directory , we will use same concept to fist display the list of files. While displaying the file names we will add one checkbox before it for selection of file by user for deletion. For this we have used one array of checkbox. echo "<form method=post name='f1' action=''>"; while (list ($key, $val) = each ($ar)) { if(strlen($val)>3){ echo "<input type=checkbox name=box[] value='$val'>$val<br>"; } } echo "<input type=submit value='Delete'></form>"; On submit of the form we can loop through the array of checkbox to identify files which are selected by user. while (list ($key,$val) = @each ($box)) { $path=$dir ."/".$val; if(unlink($path)) echo "Deleted file "; echo "$val,"; }Then we will select the path and delete the selected files by using unlink command. Here is the complete code.<?Php $dir='test_dir'; // directory name $ar=scandir($dir); $box=$_POST['box']; // Receive the file list from form // Looping through the list of selected files /// while (list ($key,$val) = @each ($box)) { $path=$dir ."/".$val; if(unlink($path)) echo "Deleted file "; echo "$val,"; } echo "<hr>"; /// displaying the file names with checkbox and form //// echo "<form method=post name='f1' action=''>"; while (list ($key, $val) = each ($ar)) { if(strlen($val)>3){ echo "<input type=checkbox name=box[] value='$val'>$val<br>"; } } echo "<input type=submit value='Delete'></form>"; ?>Marking for deletionWe can modify the above script and instead of deleting the file we can display them with strikeout text showing marked for deletion. On further confirmation from the user same can be deleted.Listing the files after deletingIn the above code we are reading or scanning all files of the directory by using scandir function. $ar=scandir($dir); We are only once using this and after deleting we can again check the directory by using scandir function. So you can add this line after deleting the files. <?Php $dir='test_dir'; // directory name $ar=scandir($dir); $box=$_POST['box']; // Receive the file list from form // Looping through the list of selected files /// while (list ($key,$val) = @each ($box)) { $path=$dir ."/".$val; if(unlink($path)) echo "Deleted file "; echo "$val,"; } echo "<hr>"; $ar=scandir($dir);// Once again directory content is scanned to exclude deleted files. /// displaying the file names with checkbox and form //// echo "<form method=post name='f1' action=''>"; while (list ($key, $val) = each ($ar)) { if(strlen($val)>3){ echo "<input type=checkbox name=box[] value='$val'>$val<br>"; } } echo "<input type=submit value='Delete'></form>"; ?>Subscribe* indicates required Email Address * First Name Last Name Subscribe to plus2net | ||||||||||
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How do I empty a directory in PHP?
The rmdir() function in PHP is an inbuilt function which is used to remove an empty directory. It is mandatory for the directory to be empty, and it must have the relevant permissions which are required to delete the directory.
How can we delete all files in a directory?
Deleting files (rm command).
To delete the file named myfile, type the following: rm myfile..
To delete all the files in the mydir directory, one by one, type the following: rm -i mydir/* After each file name displays, type y and press Enter to delete the file. Or to keep the file, just press Enter..
How can you delete file from PHP?
To delete a file in PHP, use the unlink function. Let's go through an example to see how it works. The first argument of the unlink function is a filename which you want to delete. The unlink function returns either TRUE or FALSE , depending on whether the delete operation was successful.
Which function is used in PHP to delete a file?
PHP | unlink() Function
The unlink() function is an inbuilt function in PHP which is used to delete files.