PHP Forum

**iqchicken** · 05-23-2006, 06:05 PM

How would i go about making a PHP self submitting form that would accept HTML for input into a text box and output the result of the html onto the bottom of the page.. much like www.practiceboard.com ?

This is my basic form (i'm not worried about validation or security at this point.. just trying to get it to work. And yes... this is being posted on a server which has php up and running.)

PHP Code:


			
<?php

$Fname = $_POST["Fname"];

$Lname = $_POST["Lname"];

$gender = $_POST["gender"];

$food = $HTTP_POST_VARS["food"];

$quote = $_POST["quote"];

$education = $_POST["education"];

$TofD = $_POST["TofD"];

?>

<html>

<head>

<title>Personal INFO</title>

</head>

<body>

<form method="post" action="<?php echo $PHP_SELF;?>">

First Name:<input type="text" size="12" maxlength="12" name="Fname"><br />

Last Name:<input type="text" size="12" maxlength="36" name="Lname"><br />

Gender:<br />

Male:<input type="radio" value="Male" name="gender"><br />

Female:<input type="radio" value="Female" name="gender"><br />

Please choose type of residence:<br />

Steak:<input type="checkbox" value="Steak" name="food[]"><br />

Pizza:<input type="checkbox" value="Pizza" name="food[]"><br />

Chicken:<input type="checkbox" value="Chicken" name="food[]"><br />

<textarea rows="5" cols="20" name="quote" wrap="physical">Enter your favorite quote!</textarea><br />

Select a Level of Education:<br />

<select name="education">

<option value="Jr.High">Jr.High</option>

<option value="HighSchool">HighSchool</option>

<option value="College">College</option></select><br />

Select your favorite time of day:<br />

<select name="TofD" size="3">

<option value="Morning">Morning</option>

<option value="Day">Day</option>

<option value="Night">Night</option></select><br />

<input type="submit" value="submit" name="submit">

</form>

as of right now.. this form just refreshes the page with no new data.

**PhorumBored** · 05-23-2006, 10:23 PM

well the simple problem here is that you have the action set to $PHP_SELF, but you never echo the variables. You declared and gave all the $_POST variables values but failed to echo them onto the page anywhere.

**mgraphic** · 05-23-2006, 10:42 PM

PHP Code:


			
<html>
   <body>
      <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
         <textarea name="html"></textarea><br />
         <input type="submit" /><br />
      </form>
      Preview:<br />
      <?php if(isset($_POST['html'])) echo stripslashes($_POST['html']); ?>
   </body>
</html>

**treemonster19** · 08-01-2009, 10:08 PM

Well the problem with above script is it always execute the php snippet regardless of form has been submitted or not each time when page loads. use of isset() fuction to avoid that is not suitable for some application..

Has anyone found solution something like form triggers event, and then we use that trigger value in php script to determine whether form has been submitted or not.

**treemonster19** · 08-01-2009, 10:16 PM

<?PHP
if(isset($_POST['form']) && $_POST['form']=='true')
{
/// php code to retrieve the remaining variables;
///
///
}
?>

<form>
<input name="username" type="text" id="username" />
<input name="password" type="text" id="password" />
<input name="form" type="hidden" id="form" value="true">
<input type="submit" name="Submit" value="Submit" />
</form>

**premiumscripts** · 08-03-2009, 08:14 AM

Actually, just do:

Code:

if (!empty($_POST)) { .. }

Also, make sure to htmlspecialchar those variables on output..

Code:

<input name="username" type="text" value="<?php echo htmlspecialchars($_POST['username']); ?>" />