CODEWITHSUNDEEP
php
Claremont
Claremont

Reputation: 345

Associative Array display not working

I am trying to call an associative array and I am confused why this would not work.

if I print_r($test); it shows the following:

Array(
[e7a36fadf2410205f0768da1b61156d9] => Array(
        [rowid] => e7a36fadf2410205f0768da1b61156d9
        [id] => 3
        [qty] => 1
        [price] => 20
        [name] => test
        [options] => Array(
                [permName] => large
            )
        [subtotal] => 20
    )
)

but if I do $test[0]["rowid"]; it gives the following error Message: Undefined offset: 0

I am still a php newbie but from what I have learned about arrays so far this should work. Any ideas?

Thanks

Upvotes: 0

Views: 493

Answers (3)

Vyktor
Vyktor

Reputation: 21007

You either can use key $test['e7a36fadf2410205f0768da1b61156d9']['rowid'] as [Mike B suggested][1]. Or get first element of array with [reset()`]2:

$element = reset( $test);
$element['rowid'];

Or use array_keys() if you will need to work with those keys later (you can always get current key with key()):

$keys = array_keys( $test);
$test[ $keys[0]]['rowid'];

And if you need to browse all records in test just use foreach:

foreach( $test as $key => $item){
    $item['rowid'];
}

Upvotes: 0

Ben
Ben

Reputation: 2917

Your outter array seems to have the key "e7a36fadf2410205f0768da1b61156d9" - its not indexed numerically.

So you should use

 $test["e7a36fadf2410205f0768da1b61156d9"]["rowid"]

You can also use array_keys if you want to find out what the first non-numerical key is

Upvotes: 1

Mike B
Mike B

Reputation: 32155

Your array is associative so $test[0] doesn't exist.

$test['e7a36fadf2410205f0768da1b61156d9']['rowid']

If you want to get the first element without referencing the key you can use reset($test)

$first_element = reset($test);
$first_element['row_id'];

The two examples are functionality identical.

Upvotes: 3

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