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PHP is_writable() Function

< Complete PHP Filesystem Reference

Definition and Usage

The is_writable() function checks whether the specified file is writeable.

This function returns TRUE if the file is writeable.

Syntax

is_writable(file)

Parameter	Description
file	Required. Specifies the file to check

Tips and Notes

Note: The result of this function are cached. Use clearstatcache() to clear the cache.

Example

<?php
$file = "test.txt";
if(is_writable($file))
  {
  echo ("$file is writeable");
  }
else
  {
  echo ("$file is not writeable");
  }
?>

The output of the code above could be:

test.txt is writeable

< Complete PHP Filesystem Reference