Sending post fariables back

mhalloran

After one of my forms is submitted, I validate the variables. If there is a problem, I want to send all the data back to the form so that the fields are filled in.

header ("location: form.php?(the variable string here)")

How do I send the variable string?

Thanks for your help

rohithmr

Well I wouldnt call it sending the variables back, you can achieve this by echoing out the variables when ur displaying the form.

Use header('Location: form.php?var1=1&var2=2');

then on form.php

<input type="text" name="var1" value="<?=$_GET['var1']?>">
<input type="text" name="var2" value="<?=$_GET['var2']?>">

The only problem is you will get a PHP Notice if you were displaying the from for the first time. You can add
error_reporting(E_ALL & ~E_NOTICE);

on form.php to suppress the those Notices.

mhalloran

Yeah, that's the way I've always done it but I was hoping there there was as shortcut... A way put all the post variables into a string.

Thanks for the post 🆒

tekky

while(list($key, $val) = $_POST)
{
     $$key = $val;
}

then you can do something like:

<input type=text name=blah value='$blah'>

How I did it on my page that required filling a table in from data, I used the above function but with an array from a QUERY as the source, then did

$_POST[$key] = $val;

//then in loop to output the table

echo "<input type=text name=$name value='" .$_POST[$name]. "'>\n";

like that, if the variable is blank, it outputs nothing... if its set... you have your values preset 😉

mhalloran

Thanks -

That's what I was looking for.