exist php code example
Example 1: php file exist
<?php
$filename = '/path/to/foo.txt';
if (file_exists($filename)) {
echo "The file $filename exists";
} else {
echo "The file $filename does not exist";
}
?>
Example 2: php check if file exists
if (!file_exists('http://mysite.com/images/thumbnail_1286954822.jpg')) {
$filefound = '0';
}
Example 3: if exist php
if (isset($var)) {
}
Example 4: isset in php
isset($x);
$x = 'myValue';
if(isset($x)){
echo 'x is set';
}
$x = null;
if(isset($x)){
echo 'x is set';
}
if(isset($y)){
echo 'y is set';
}