elseif form variable help

[michaelowen]

hello everybody....this probably really simple, but i need to pass a dependent variable (hidden) into my database.

What i want to say in this statement is depending on what the Race is, I need to associate the proper registartion $amount.

here is what i have now, and it doesn't put anything in the amount varaible. There must be a slight syntax issue.

note: this is within the form tag.

<tr><td>Race</td><td>
<select name="race">
<option value="">
<option value="5krun">5k Run
<option value="5kwalk">5k Walk
<option value="kids">Kids Races
</select>
</td></tr>

<?php

if( $race == 'kids' ) {
$amount = 3;
}elseif( $race == "5krun" ){
$amount = 15;
}elseif( $race == "5kwalk" ){
$amount = 15;
}
?>

<tr><td></td><td><input type="hidden" name="amount" value="<?php echo $amount?>"><?php echo $amount?></td></tr>

---

thank you.

-mike

[Weedpacket]

If I understand your intention correctly, then I think you're going about this in quite the wrong way: PHP can't do anything to the page once it's been sent out to the client - for that you'd need to use something like Javascript. Either that, or not use the hidden variable at all, and just work out what should have been there when you process the submitted form based on the value of $_POST['race']

[michaelowen]

ok, it's a syntax issue in the part the i noted, but i'll show you the whole code:

---

<?php

if ($submit) {

// process form

header("Location:[url]http://www........com/....../verify.php?first_name=[/url]".$first_name."&last_name=".$last_name."&address1=".$address1."&city=".$city."&state=".$state."&zip=".$zip."&age=".$age."&sex=".$sex."&race=".$race."&amount=".$amount."&email=".$email."&night_phone_a=".$night_phone_a."&night_phone_b=".$night_phone_b."&night_phone_c=".$night_phone_c."&waiver=".$waiver."");

} else{

// display form

?>

<br><table align="center" bgcolor="#81B6ED" border="2" width="400">
<tr><td>
<form method="post" action="<?php echo $PHP_SELF?>" onSubmit="return Validator(this);">

<h3><center>Registration Form: </center></h3>

<table border="0" width="400">

<tr><td>First Name</td><td><input type="Text" name="first_name"></td></tr>

<tr><td>Last Name</td><td><input type="Text" name="last_name"></td></tr>

<tr><td>Address</td><td><input type="Text" name="address1"></td></tr>

<tr><td>City</td><td><input type="Text" name="city"></td></tr>

<tr><td>State</td><td>
<select name="state">
<option value>
<option value="AK" >AK
<option value="VI" >VI
</select>
</td></tr>

<tr><td>Zip Code</td><td><input type="Text" name="zip" size="5" maxlength="5"></td></tr>

<tr><td>Phone</td><td><input type='text' name="night_phone_a" size="3" maxlength="3">&nbsp; <input type='text' name="night_phone_b" size="3" maxlength="3">&nbsp; <input type='text' name="night_phone_c" size="4" maxlength="4"></td></tr>

<tr><td>Age on Race Day</td><td><input type="Text" name="age" size="3" maxlength="3"></td></tr>

<tr><td>Sex</td><td>
<select name="sex">
<option value="">
<option value="female">Female
<option value="male">Male
</select>
</td></tr>

<tr><td>Race</td><td>
<select name="race">
<option value="">
<option value="5krun">5k Run
<option value="5kwalk">5k Walk
<option value="kids">Kids Races
</select>
</td></tr>

<?php

if( $race == 'kids' ) {
$amount = 3;
}elseif( $race == "5krun" ){
$amount = 15;
}elseif( $race == "5kwalk" ){
$amount = 15;
}
?>

<tr><td></td><td><input type="hidden" name="amount" value="<?php echo $amount?>"><?php echo $amount?></td></tr>

<tr><td>Email</td><td><input type="Text" name="email"></td></tr>

</table>

<hr><table><tr><td>
<b>Waiver:</b>

</font>
<br>
<center><b>Check this button to agree <INPUT TYPE="checkbox" NAME="waiver" value="1">
</b></center></td></tr></table>
<hr><br>
<table align="center"><tr></td>
<center> <input type="Submit" name="submit" value="Submit"></center></td></tr></table>

</form>

<table align="center" bgcolor="gray"" border="0" width="250">
<tr><td><center><a href="http://www........com" target="rh">
<img src="/images/RH_1.gif" alt="" width="250" border="2"></a></center></td>
</tr></table>

<?php
} // end if

?>

---

somehow the amount variable isn't getting set....it sets the race variable in the header, but amount is blank,

-mike

[Weedpacket]

But when is $amount supposed to be set? If it's when the page is first loaded, then it's going to be empty, because $race isn't set yet; if it's when the form is being processed, then the redirection header is going to be put together and sent to the browser before the code that sets $amount is even reached.

The browser isn't going to run that PHP of PHP code when the user selects something from the race dropdown, for the simple reason that PHP doesn't run on the browser. It runs on the server, and the server doesn't know that the user even exists, let alone what they're doing with their browser.