CODEWITHSUNDEEP
phparrays
StuBlackett
StuBlackett

Reputation: 3855

PHP - If in_array

I am working with CodeIgniter and have created a custom form preferences custom config. In that I have an array that is as follows:

Array
(
  [1] => Category 1
  [2] => Category 2
  [3] => Category 3
  [4] => Category 4
  [5] => Category 5   
)

I am passing that to the view as the var $service_categories what I'd then like to do is match it to the "value" that is in the database. I.E 5. If it matches then show Category 5 in the view. At the moment I am just showing 5 - This is no good to the user.

The variable $service->service_category is a number.

The var service produces:

Array
(
    [0] => stdClass Object
    (
        [service_id] => 3
        [organisation_id] => 2
        [service_name] => Edited Service 3
        [service_description] => This is service 3 provided by
        [service_category] => 5
        [service_metadata] => Metadata for service 3 - Edited
        [service_cost] => 22.00
        [service_active] => active
    )
)

My current PHP for this is as follows:

if (in_array($service->service_category, $service_categories))
{
   echo "Exists";
}

However, the Exists is not showing in the view. It is showing nothing at all.

Am I doing something wrong with the in_array method?

Upvotes: 0

Views: 4592

Answers (4)

Dennis Møllegaard Pedersen
Dennis Møllegaard Pedersen

Reputation: 58

in_array() checks if a value exists in the array. So in_array('Category 1', $service_categories) would work.

However, to check if a key is present in an array, you can use:

if(array_key_exists($service->service_category, $service_categories)) {
    echo "Exists";
}

I think, this is what you're looking for.

Upvotes: 4

powtac
powtac

Reputation: 41080

if (isset($service_categories[$service->service_category])) {
   echo "Exists";
}

Upvotes: 2

lthms
lthms

Reputation: 519

I think array_key_exists is the function you might search.

Upvotes: 2

Berry Langerak
Berry Langerak

Reputation: 18859

The variable : $service->service_category is a number.

And that precisely is the problem: your testing to see if "5" is equal to "Category 5", which it is obviously not. Simplest solution would be to prepend the "5" with "Category ":

<?php
$category = 'Category ' . $service->service_category;

if (in_array($category, $service_categories)) {
   echo "Exists";
}

EDIT: If you want to check if the array key exists (because '5' => 'Category 5'), this could be achieved with isset( ) or array_key_exists.

<?php
if (array_key_exists ($service->service_category, $service_categories )) {
   echo "Exists";
}

// does the same:
if (isset ($service_categories[service->service_category] )) {
   echo "Exists";
}

Upvotes: 4

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