<form action="<?php echo $_SERVER['PHP_SELF']; ?>">
//there is no reason to use this to submit form data to the same page
<form action="">
//will do the same thing

<?php // PHP $_SERVER['...']; method // PHP file name echo 'PHP file name: '.$_SERVER['PHP_SELF'].'<br>'; // Server name echo 'Server name: '.$_SERVER['SERVER_NAME'].'<br>'; // HTTP host echo 'HTTP host: '.$_SERVER['HTTP_HOST'].'<br>'; // Refering link echo 'Refering link: '.$_SERVER['HTTP_REFERER'].'<br>'; // User agent echo 'User agent: '.$_SERVER['HTTP_USER_AGENT'].'<br>'; // Script name echo 'Script name: '.$_SERVER['SCRIPT_NAME']; // The rest is optional if($_SERVER['PHP_SELF']=='/filename.php'){ //If there is no folder echo 'No folder'.$_SERVER['PHP_SELF']; } else{ // Echo the name of the folder containing the PHP file echo 'PHP file name: '.$_SERVER['PHP_SELF']; } // The same if statements can be used for the script name if($_SERVER['SCRIPT_NAME']=='/filename.php'){ // If there is no folder echo 'No folder'.$_SERVER['SCRIPT_NAME']; } else{ // Echo the name of the folder containing the PHP file echo 'PHP file name: '.$_SERVER['SCRIPT_NAME']; } echo '<a href="repl.it/@CoolWebDev">More from me...</a>'; // I hope you found this helpful!
?>