PHP is_readable() Function

Check whether the specified filename is readable:

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

The output of the code above could be:

test.txt is readable

Definition and Usage

The is_readable() function checks whether the specified filename is readable.

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

is_readable( file)

Parameter	Description
file	Required. Specifies the path to the file to check

Return Value:	TRUE if the file is readable, FALSE and an E_WARNING otherwise
PHP Version:	4.0+