PHP Variables through Checkboxes

[JayJ]

Hi all,

Basically I'm banging my head against the wall recently trying to get a list of checkboxes to pass variables to a SQL query. If the checkbox is ticked then I wish for the a certain SQL query to be passed. This is my code at the moment that I'm toying with:

<form method="POST" name="myform2" action="<?php echo $_SERVER['PHP_SELF']; ?>"> 
<br>
Please enter a UserID to update with award icons:<br>
UserID: <input type="text" name="multiid"> <br>
<br>
Attack <input type="checkbox" onClick="document.myform2.a0.value = this.checked"><
Defence <input type="checkbox" onClick="document.myform2.b0.value = this.checked"><br>
<input type="hidden" name="b0" value="3">
Strength <input type="checkbox" onClick="document.myform2.c0.value = this.checked"><br>
<input type="hidden" name="c0" value="13"> 
HP <input type="checkbox" onClick="document.myform2.d0.value = this.checked"> <br>
<input type="hidden" name="d0" value="11">
Ranged <input type="checkbox" onClick="document.myform2.e0.value = this.checked"> <br>
<input type="hidden" name="e0" value="16">
Prayer <input type="checkbox" onClick="document.myform2.f0.value = this.checked"> <br>
<input type="hidden" name="f0" value="19">
Magic <input type="checkbox" onClick="document.myform2.g0.value = this.checked"> <br>
<input type="hidden" name="g0" value="12">
Cooking <input type="checkbox" onClick="document.myform2.h0.value = this.checked"> <br>
<input type="hidden" name="h0" value="1">
Woodcutting <input type="checkbox" onClick="document.myform2.i0.value = this.checked"> <br>
<input type="hidden" name="i0" value="21">
Fletching <input type="checkbox" onClick="document.myform2.j0.value = this.checked"> <br>
<input type="hidden" name="j0" value="4">
Fishing <input type="checkbox" onClick="document.myform2.k0.value = this.checked"> <br>
<input type="hidden" name="k0" value="9">
Firemaking <input type="checkbox" onClick="document.myform2.l0.value = this.checked"> <br>
<input type="hidden" name="l0" value="8">
Crafting <input type="checkbox" onClick="document.myform2.m0.value = this.checked"> <br>
<input type="hidden" name="m0" value="6">
Smithing <input type="checkbox" onClick="document.myform2.n0.value = this.checked"> <br>
<input type="hidden" name="n0" value="15">
Mining <input type="checkbox" onClick="document.myform2.o0.value = this.checked"> <br>
<input type="hidden" name="o0" value="14">
Herblore <input type="checkbox" onClick="document.myform2.p0.value = this.checked"> <br>
<input type="hidden" name="p0" value="10">
Agility <input type="checkbox" onClick="document.myform2.q0.value = this.checked"> <br>
<input type="hidden" name="q0" value="5">
Thieving <input type="checkbox" onClick="document.myform2.r0.value = this.checked"> <br>
<input type="hidden" name="r0" value="20">
Slayer <input type="checkbox" onClick="document.myform2.s0.value = this.checked"> <br>
<input type="hidden" name="s0" value="18">
Farming <input type="checkbox" onClick="document.myform2.t0.value = this.checked"> <br>
<input type="hidden" name="t0" value="7">
Runecraft <input type="checkbox" onClick="document.myform2.u0.value = this.checked"> <br>
<input type="hidden" name="u0" value="17">
Hunter <input type="checkbox" onClick="document.myform2.v0.value = this.checked"> <br>
<input type="hidden" name="v0" value="47">
Construction <input type="checkbox" onClick="document.myform2.w0.value = this.checked"> <br>
<input type="hidden" name="w0" value="50">
<br><br>
<input type="submit" name="Submit"> </form>


<?
	$attack80 = $_POST['a0'];
	$defence80 = $_POST['b0'];
	$strength80 = $_POST['c0'];
$hp80 = $_POST['d0'];
	$ranged80 = $_POST['e0'];
	$prayer80 = $_POST['f0'];
$magic80 = $_POST['g0'];
	$cooking80 = $_POST['h0'];
	$woodcutting80 = $_POST['i0'];
$fletching80 = $_POST['j0'];
	$fishing80 = $_POST['k0'];
	$firemaking80 = $_POST['l0'];
$crafting80 = $_POST['m0'];
	$smithing80 = $_POST['n0'];
	$mining80 = $_POST['o0'];
$herblore80 = $_POST['p0'];
	$agility80 = $_POST['q0'];
	$thieving80 = $_POST['r0'];
$slayer80 = $_POST['s0'];
	$farming80 = $_POST['t0'];
	$runecraft80 = $_POST['u0'];
$hunter80 = $_POST['v0'];
	$construction80 = $_POST['w0'];

$multiid = $_POST['multiid'];

if ($multiid = '')
{
echo "Please enter an userid";
}


else
{

if ($attack80 = '2')
{
echo "Yes this works";
$db->query_write("
		INSERT INTO " . TABLE_PREFIX . "award_user
		(award_id, userid, issue_reason, issue_time) 
		VALUES ('2', '$multiid', '" . addslashes($vbulletin->GPC['issue_reason']) . "', " . time() . ")
");
}

if ($defence80 = '3')
{
$db->query_write("
		INSERT INTO " . TABLE_PREFIX . "award_user
		(award_id, userid, issue_reason, issue_time) 
		VALUES ('3', '$multiid', '" . addslashes($vbulletin->GPC['issue_reason']) . "', " . time() . ")
");
}

}

Any help or assistance would be greatly appreciated with this as I have been pulling my hair out for the past week over this and different tutorials are not easy to comprehend with regards to checkbox values.

Kind Regards

JayJ

p.s. Good to see Daniweb going strong after all these years :)

[petr.pavel]

Hi there, could you please let us know what isn't working? I.e. what is the behaviour you expect and what is it doing instead.

BTW: Are you sure you need all that JavaScript hassle with onClick on the checkboxes?

Maybe you don't know what is being submitted. For example here:

<input type="checkbox" onClick="document.myform2.w0.value = this.checked">
<input type="hidden" name="w0" value="50">

If clicked w0 will be assinged "true". Otherwise it will keep "50". Also if I click the checkbox and then click it again (to uncheck it), w0 will still hold "true".

Why don't you use just

<input type="checkbox" name="w0" value="50">

If checked w0 will contain "50". If unchecked then w0 will not be submitted - use if (isset($_POST)) in your script to test it.

To see what your script is getting put var_dump($_POST); somewhere into your script.

[JayJ]

You are quite correct - I overcomplicated it attempting to use Javascript which is outside of my comfort zone. I had thought that something as simple would work, but didn't try it having searched and been confronted with lots of confusing tutorials that had javascript examples.

Thanks very much :) Problem solved and positive rep :)