how to check image path php code example

Example 1: check image is available on server php

if (file_exists('http://www.mydomain.com/images/'.$filename)) {
 … }

Example 2: php check if folder exists

<?php
$filename = '/path/to/foo.txt';

if (file_exists($filename)) {
    echo "The file $filename exists";
} else {
    echo "The file $filename does not exist";
}
?>