PHP | is_writable() 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 is_writable() Function.

The built-in PHP is_writable() function checks whether the specified file is writable.

Syntax

Following below is the syntax to use this function -

bool is_writable ( string $filename )

READ: PHP | is_link() Function

This built-in function returns true if the filename exists and is writable. The filename argument may be a directory name that allows us to check if the directory is writable.

Return Value

This built-in PHP function returns true if the file is writable, otherwise it returns false.

Example

Try out the below example -

<?php
   $file = "/PhpProject/php/phptest.txt";
   if(is_writable($file)) {
       echo ("$file is writable");
   } else {
       echo ("$file is not writable");
   }
?>

Output

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

/PhpProject/php/phptest.txt is writable

READ: PHP | is_uploaded_file() Function

Alright guys! This is where we are rounding up for this tutorial guide. In our next tutorial guide, we are going to be discussing about the PHP is_writeable() Function.

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