$get multiple variables from url - php

Question

I am making a photography website. In the DB there is an images table, events table and category table which as linked via foreign keys. At the moment i generate events from when a photo was taken from the database and turn them into anchor links.
<?php
while ( $a_row = mysql_fetch_row( $result ) ){
foreach ( $a_row as $field ){
?>
<php? echo $field; ?>
<?php
}
}
?>
When the link is clicked a script gets the variable from get in the url: /images.php?**event**=eventCalledParty
foreach($_GET as $value)
{
$event = $value;
}
$event = mysql_real_escape_string($event);
My question is - If i was to implement categories and have a url that looks like:
/images.php?event=eventCalledParty&category=categoryCalledFashionPhotography
How would i seperate these two variables from the url to use in my queries.
Thank You.

Answer 1

These will automatically show up in these variables...
$_GET['event']
$_GET['category']
PHP does all of this work for you.

Answer 2

$event = mysql_real_escape_string($_GET['event']);
$category = mysql_real_escape_string($_GET['category']);

Answer 3

Each url parameter becomes a separate key in $_GET.
So, for /images.php?event=eventCalledParty&category=categoryCalledFashionPhotography you will get:
$_GET['event'] => 'eventCalledParty'
$_GET['category'] => 'categoryCalledFashionPhotography'
and you can act accordingly:
if ($_GET['category'] == 'categoryCalledFashionPhotography') {
//do stuff here
}

Answer 4

Im a bit rusty on php but I think in your foreach what you want is to get the name of teh field as well as its value.
foreach($_GET as $name->$value)
{
if($name == 'event') {
$event = mysql_real_escape_string($value);
}
else if($name == 'category')
{
$category = mysql_real_escape_string($category);
}
}

Answer 5

foreach($_GET as $key => $value)
{
$event[$key] = mysql_real_escape_string($value);
}