RE: [PHP] header("Location:blah...") - passing variables

My approach has been to pass an "error code" back to the original form. form.php: <?php

        print("<form aciton=\"formVerify.php\">");
        print("a buncha form crap");
        if ($errcode==1) print ("Your user id is wrong. You suck");
        if ($errcode==2) print ("Your password is wrong. You really suck");
        print("</form");

?> Then in formVerify.php: <?php

        ...error checking code...
        if (userID invalid)
                header("Location: form.php?errcode=1");
        if (password invalid)
                header("Location: form.php?errcode=2");
        else
                header("Location: goodpage.php");

?> You could probably also use cookies to pass the error code back and forth, but that's probably overkill and unreliable. (Sorry if the pseudo-code I used above offends anyone with the use of the word "suck"; the futile job search has got me really annoyed right now.) At 10:25 AM 12/4/2001, Mark Charette wrote:

I cheat and just include the original form on error ... Almost all my input values are set to PHP variables in the form. The 1st time through none are set, so the values are blank. After submitting the form, I check for validity. If there are errors I mark the errors, generate an error string, and include the form. That way all previously typed in data remains in the form without me having to tell the user to hit the "back" button, and there's no horribly long URL string resetting all those values. There's a bit more work than that (using htmlspecialchars et al.) but if you start creating forms with error checking & indication in mind it's really easy to do validation and redisplay if necessary. Mark C.

Hi, I wonder if someone could tell me whether or not the following is possible? I have an HTML form which passes a username and password to a PHP script for validation. If either is not valid, I would like it to return to the previous page - carrying with it a variable plus the submitted form information... =-=-=-=-=-=-=-=-= if (strlen ($password1) <4 ) { $err = "Password must be more than 4 characters long"; header("Location:http://somelocation.php"); // ^-- at the location, the $err and form variables will be available exit; }

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