PHP | touch() Function

PHP touch() 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 touch() Function.

The built-in PHP touch() function sets the access and modification time of a specified file.

Syntax

Following below is the syntax to use this function -

bool touch ( string $filename [, int $time = time() [, int $atime ]] )


This function sets the access and modification time of a file named in the filename parameter to the given value in time. You should take note that the access time is always modified regardless of the number of parameters.

Return Value

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

Example1

Try out the below example -

<?php
   $filename = "/PhpProject/sample.txt";
   if(touch($filename)) {
      echo $filename . " modification time has been changed to present time";
   } else {
      echo "Sorry, could not change modification time of " . $filename;
   }
?>

Output

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

/PhpProject/sample.txt modification time has been changed to present time

Example2

Try out the below example -

<?php
   $time = time() - 3600;
   if (!touch("/PhpProject/sample.txt", $time)) {
      echo "oops, something went wrong...";
   } else {
      echo "Touched file with success";
   }
?>

Output

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

Touched file with success


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 umask() Function.

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