[esa@esaDev grapher]$ cat test.php
<?php
    if($_GET['sizex'] == null) {
        $sizex = 200;
    } else {
        $sizex = $_GET['sizex'];
    }
?>
[esa@esaDev grapher]$ php test.php
PHP Parse error:  syntax error, unexpected '}' in /var/www/html/grapher/test.php on line 6
[esa@esaDev grapher]$