Hello Friends,

In this post, we will learn How To Delete a File Using PHP To delete a file by using PHP is very simple. Deleting a file means completely erase(remove) a file from a directory so that the file is no longer exist. PHP has an unlink() function that allows to delete a file. The PHP unlink() function takes two parameters filename and context.

	unlink(filename, context)

This program uses unlink() function to remove file from directory. Suppose there is a file named as “demo.txt”.

<?php

  // PHP program to delete a file named demo.txt 
  // using unlike() function 
     
  $file_name = "demo.txt"; 
     
  // Use unlink() function to delete a file 
  if (!unlink($file_name)) { 
      echo ("$file_name cannot be deleted due to an error"); 
  } 
  else { 
      echo ("$file_name has been deleted"); 
  } 
  
?>

demo.txt has been deleted

This program uses unlink() function to delete a file from folder after using some operation.

<?php

  // PHP program to delete a file named demo.txt 
  // using unlike() function 
    
  $file_name = fopen('demo.txt', 'w+'); 
      
  // writing on a file named demo.txt 
  fwrite($file_name, 'Hi, welcome to Mywebtuts.com!'); 
  fclose($file_name);   
    
  // Use unlink() function to delete a file 
  if (!unlink($file_name)) { 
      echo ("$file_name cannot be deleted due to an error"); 
  } 
  else { 
      echo ("$file_name has been deleted"); 
  } 
   
  
?>

Warning: unlink() expects parameter 1 to be a valid path, resource given in /var/www/html/php_learn/php_blogs/unlink.php on line 12
Resource id #3 cannot be deleted due to an error

I Hope It Will Help You...