PHP | unlink() Function

PHP unlink() Function


Hello dear readers! welcome back to another edition of our tutorial on PHP. In this tutorial guide, we are going to be discussing about the PHP unlink() Function.

The built-in PHP unlink() function deletes a filename and it is similar to the Unix C unlink() function.

Syntax

Following below is the syntax to use this function -

bool unlink ( string $filename [, resource $context ] )


Return Value

This built-in function returns true on success, or false on failure.

Example1

Try out the below example -

<?php
   $file = "/PhpProject/php/sample.txt";
   if(!unlink($file)) {
      echo ("Error deleting $file");
   } else {
      echo ("Deleted $file successfully");
   }
?>

Output

When the above code is executed, it will produce the following result -

Deleted /PhpProject/php/sample.txt successfully

Example2

Try out the below example -

<?php
   $fh = fopen("/PhpProject/test.html", "a");
   fwrite($fh, "<h1> Hello world! </h1>");
   fclose($fh);

   unlink("/PhpProject1/test.html");
?>

Output

When the above code is executed, it will produce the following result -

file deleted succcessfully 


Alright guys! This is where we are rounding up for this tutorial post. In our next tutorial guide, we are going to be discussing about the PHP Hash Functions.

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