Form Submission

**Bioshox** · 03-01-2010, 02:40 PM

Hey Everyone!

Hopefully this will teach some newbies to PHP info on Form Submission!

Okay so first we need to create the HTML for the forms and layout (If you don't know how to do this i suggest you go learn HTML first before you come to learning PHP)

Code:


<html>

<head>

<title>Form Submit</title>

</head>

<body>



<form action='index.php' method='post'>

<input type='text' name='textbox'>

<input type='submit' name='submit' value='Submit!'>



</body>

</html>

Okay so now we have the HTML for the document, so below the body tag begin by opening the PHP Tags

Code:


<?php

Now we need to use an IF statment the check if the submit button has been pressed

Code:


<?php



if(isset($_POST['submit'])){

$_POST is the variable as that's the method we used to submit the data, [' '] is the name of the variable (in this case submit)

So now we have called the IF statment, we need to declair a variable

Code:


<?php

//Check if the submit button has been pressed

if(isset($_POST['submit'])){



//$text is what we put into the field

$text = $_POST['textbox'];

Here we are saying the $text variable should be what we put in the text box on the form

Now we need to tell it what to display

Code:


<?php

//Check if the submit button has been pressed

if(isset($_POST['submit'])){



//$text is what we put into the field

$text = $_POST['textbox'];



//Display test

echo $text;

So up to now, we have told PHP to check if the submit button has been pressed, if it has display what we typed into the box, but we need an else statment now, incase it hasent been pressed

Code:


<?php

//Check if the submit button has been pressed

if(isset($_POST['submit'])){



//$text is what we put into the field

$text = $_POST['textbox'];



//Display test

echo $text;



//If we didnt press submit

}else {



?>

After the submit button code in the form HTML type

Code:


<?php

}//Ends the else statment

?>

There you have it, your code should now look like this

Code:


<html>

<head>

<title>Form Submit</title>

</head>

<body>



<?php

//Check if the submit button has been pressed

if(isset($_POST['submit'])){



//$text is what we put into the field

$text = $_POST['textbox'];



//Display test

echo $text;



//If we didnt press submit

}else {



?>



<form action='index.php' method='post'>

<input type='text' name='textbox'>

<input type='submit' name='submit' value='Submit!'>



<?php

}//Ends the else statment

?>



</body>

</html>

**k1net1cs** · 03-04-2010, 08:35 AM

Not intending to nitpick, but I think you forgot to mention that the file should be saved as 'index.php'. =b

Otherwise, a fine basic form submission tutorial using PHP, but maybe you'd need to explain what a $_POST variable is; why we should use that and not $_GET, those kind of trivial things. =)