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PHP $POST and Input Order

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FlashCreations FlashCreations is offline

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PHP $POST and Input Order

Oct 17th, 2008

Hello,
I have a question about PHP. I realized that you can use the POST variable to get data from a form submitted with the type post, but does the order of the fields matter. Example:

index.html:

 Help with Code Tags 
 HTML Syntax (Toggle Plain Text) 
<HTML>
<HEAD>
<TITLE>Form</TITLE>
</HEAD>
<BODY>
<FORM name='test' action='submit.php' method='post'>
Name: <INPUT type='text' name='name' /><br />
Programming Language <INPUT type='text' name='lang' /><br />
<INPUT type='submit' value='submit' />
</FORM>
</BODY>
</HTML>
<HTML>
<HEAD>
<TITLE>Form</TITLE>
</HEAD>
<BODY>
<FORM name='test' action='submit.php' method='post'>
Name: <INPUT type='text' name='name' /><br />
Programming Language <INPUT type='text' name='lang' /><br />
<INPUT type='submit' value='submit' />
</FORM>
</BODY>
</HTML>

Here's the code for submit.php:

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 PHP Syntax (Toggle Plain Text) 
<?php
//This code works
echo $_POST['name'];
echo "<br />"
echo $_POST['lang'];
 
//But if I flip the two, it doesn't.
echo $_POST['lang'];
echo "<br />"
echo $_POST['name'];
?>
<?php
//This code works
echo $_POST['name'];
echo "<br />"
echo $_POST['lang'];

//But if I flip the two, it doesn't.
echo $_POST['lang'];
echo "<br />"
echo $_POST['name'];
?>

My question is: Why does flipping the two POST vars make this code not work? If there is a way (besides of course writing it as the values are ordered, which will be hard since I am not sure what order the form's elements will be in) to get by this? Thanks Everyone for your great help!!!

Last edited by FlashCreations; Oct 17th, 2008 at 11:56 pm.

FlashCreations
(aka PhpMyCoder)

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adilkhan

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Newbie Poster

Re: PHP $POST and Input Order

Oct 18th, 2008

•

Originally Posted by FlashCreations

Hello,
I have a question about PHP. I realized that you can use the POST variable to get data from a form submitted with the type post, but does the order of the fields matter. Example:

index.html:
Help with Code Tags

HTML Syntax (Toggle Plain Text)
<HTML>
<HEAD>
<TITLE>Form</TITLE>
</HEAD>
<BODY>
<FORM name='test' action='submit.php' method='post'>
Name: <INPUT type='text' name='name' /><br />
Programming Language <INPUT type='text' name='lang' /><br />
<INPUT type='submit' value='submit' />
</FORM>
</BODY>
</HTML>
<HTML> <HEAD> <TITLE>Form</TITLE> </HEAD> <BODY> <FORM name='test' action='submit.php' method='post'> Name: <INPUT type='text' name='name' /><br /> Programming Language <INPUT type='text' name='lang' /><br /> <INPUT type='submit' value='submit' /> </FORM> </BODY> </HTML>
Here's the code for submit.php:
Help with Code Tags

PHP Syntax (Toggle Plain Text)
<?php
//This code works
echo $_POST['name'];
echo "<br />"
echo $_POST['lang'];
 
//But if I flip the two, it doesn't.
echo $_POST['lang'];
echo "<br />"
echo $_POST['name'];
?>
<?php //This code works echo $_POST['name']; echo "<br />" echo $_POST['lang']; //But if I flip the two, it doesn't. echo $_POST['lang']; echo "<br />" echo $_POST['name']; ?>
My question is: Why does flipping the two POST vars make this code not work? If there is a way (besides of course writing it as the values are ordered, which will be hard since I am not sure what order the form's elements will be in) to get by this? Thanks Everyone for your great help!!!

there is no limitation with order , the post values come in an array and you can always access any element of an array. try print_r($_POST); and you will get clear idea. May be its an ; that you missed after echo "</br" that is creating problem.

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Join Date: Jul 2008

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Shanti Chepuru Shanti Chepuru is offline

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Re: PHP $POST and Input Order

Oct 18th, 2008

yes, in POST variable are stored in a array called $_POST...so we can retrieve them with key like $_POST['lang']; or $_POST['name']; or some thing...No matter of order...
or As adilkhan said,try to print print_r($_POST);...

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