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PHP | is_dir() Function

PHP is_dir() Function

Hello folks! welcome back to a new edition of our tutorial on PHP. In this tutorial guide, we are going to be studying about the PHP is_dir() Function.

The PHP is_dir() function checks whether the specified file is a directory.


Following below is the syntax to use this function -

bool is_dir ( string $filename )

This built-in PHP function can tell whether the given filename is a directory.

Return Value

This built-in PHP function returns true if the directory exists.


Try out the below example -

   $file = "/PhpProject/php";
   if(is_dir($file)) {
      echo ("$file is a directory");
   } else {
      echo ("$file is not a directory");


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

/PhpProject/php is a directory


Try out the below example -



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


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

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