Usage and Examples of PHP is_readable() Function

PHP Filesystem Reference Manual

The is_readable() function can check if the specified file is readable. If the file is readable, this function returns true.

Syntax

bool is_readable ( string $filename )

This function can determine whether a file exists and is readable.

Online Example

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

Output Result

/PhpProject/php/phptest.txt is readable

PHP Filesystem Reference Manual