note 47150 added to tutorial.forms

You may wish to know if a request for a PHP file came as a result of a POST or as a normal request. Usually the first time a user brings up a form there is no POST data and on most subsequent trips there is POST data. You can determine if there is POST data by using the ISSET() function of any particular post variable, as in: <?php if (isset($_POST['any_form_variable'])) { statement; } ?> To make it generic, put a hidden input onto your forms, and always use the same name, such as: <form.... <input type="hidden" name="post_trap" value="x"> <?php if (isset($_POST['post_trap'])) { statement; } ?> </form> ---- Manual Page -- http://www.php.net/manual/en/tutorial.forms.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+47150 Delete -- http://master.php.net/manage/user-notes.php?action=delete+47150&report=yes Reason: bad code -- http://master.php.net/manage/user-notes.php?action=delete+47150&report=yes&reason=bad+code Reason: spam -- http://master.php.net/manage/user-notes.php?action=delete+47150&report=yes&reason=spam Reason: useless example -- http://master.php.net/manage/user-notes.php?action=delete+47150&report=yes&reason=useless+example Reason: contains commercial links -- http://master.php.net/manage/user-notes.php?action=delete+47150&report=yes&reason=contains+commercial+links Reason: useless note -- http://master.php.net/manage/user-notes.php?action=delete+47150&report=yes&reason=useless+note Reject -- http://master.php.net/manage/user-notes.php?action=reject+47150&report=yes Search -- http://master.php.net/manage/user-notes.php