Using $_GET variable to determine which index in an array to reference

Question

I am getting data via $_GET['value'] and I want that value to represent a variable of an array.

I'm building a sort by drop-down menu with 3 options.

I want to search an array for a match.

So if the $_GET['value'] == 'name' then I want to search my array for 'name' and use that value as the data sent to my query.

Sort By:

<select name='1' value='name'>Name</select>
<select name='1' value='manufacturer'>Brand</select>

So when php gets the values of the select menu I want to do an array search for that name and use its value to represent a variable to be sent to my query.

show your html, it will make more sense

Ibu
– Ibu

2011-07-25 02:04:04 +00:00
Commented Jul 25, 2011 at 2:04 — Ibu
– Ibu, Commented Jul 25, 2011 at 2:04

Michael Berkowski · Accepted Answer · 2011-07-25 02:31:53Z

1

Determine if the value received in $_GET is in your array, then retrieve it by the index.

// Your values are stored in this array
$your_array = array("name" => "some name", "place" => "some place");

// Check if the `value` is a key in your array
if (array_key_exists($_GET['value'], $your_array)) {
   $search_value = $your_array[$_GET['value']];
}
else {
  // Not found.. Use some default value instead.
}

edited Jul 25, 2011 at 2:31

answered Jul 25, 2011 at 2:06

Michael Berkowski

271k47 gold badges450 silver badges395 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Michael Berkowski Over a year ago

@RPM that's a typo! It should be $your_array[$_GET['value']] Fixed above. That way, it will find any key passed in GET

Ryan Over a year ago

Thanks I find this as a very useful function because it isnt a live query to database is pre defined

Ibu · Accepted Answer · 2011-07-25 02:06:08Z

0

You can check if the value is in the array by using in_array() method

Example:

$yourArray = array(...);

if ($_GET['value'] == 'name') {
   if (in_array($theName,$yourArray)) {
      // build your query
   }
}

answered Jul 25, 2011 at 2:06

Ibu

44k14 gold badges82 silver badges109 bronze badges

Comments

coolesting · Accepted Answer · 2011-07-25 02:08:02Z

0

if (isset($_GET['value'])) {
     if ($value = $your_array[$_GET['value']]) {
         //do something by this $value
     }
}
else {
   echo 'nothing';
}

answered Jul 25, 2011 at 2:08

coolesting

1,4515 gold badges18 silver badges22 bronze badges

Collectives™ on Stack Overflow

Using $_GET variable to determine which index in an array to reference

3 Answers 3

2 Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

2 Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related