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.

Syntax

Following below is the syntax to use this function -

bool is_dir ( string $filename )

READ: PHP | fwrite() Function

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.

Example1

Try out the below example -

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

Output

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

/PhpProject/php is a directory

Example2

Try out the below example -

<?php
   var_dump(is_dir("/PhpProject/simple.txt"));
   var_dump(is_dir("/PhpProject/php"));
   var_dump(is_dir("..")); 
?>

Output

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

bool(false)
bool(true)
bool(true)

READ: PHP | glob() Function

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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Thanks for reading and bye for now.