PHP Outputting Array Index name [duplicate]

Question

Following on this SO question regarding array brackets

I would like to know if it is possible / how to print the array index i.e. I would like to display the values which is in single quotes 'expensive', 'meduim' etc

$cars   = array ('expensive' => $BMW,
                 'medium'    => $Volvo,
                 'cheap'     => $Lada);

use array_keys to get keys of an array

B. Desai
– B. Desai

2017-02-22 04:45:20 +00:00
Commented Feb 22, 2017 at 4:45 — B. Desai
– B. Desai, Commented Feb 22, 2017 at 4:45

miken32 · Accepted Answer · 2017-02-22 04:50:32Z

0

$cars = array (
    'expensive' => $BMW,
    'medium'    => $Volvo,
    'cheap'     => $Lada
);

foreach (array_keys($cars) as $index) {
    echo "$index<br/>\n";
}

answered Feb 22, 2017 at 4:50

miken32

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Alex · Accepted Answer · 2017-02-22 04:50:07Z

0

How do you plan on accessing $BMW, $Volvo, or $Lada without the key name?

If you know the value of $BMW you could perform array_search() [http://php.net/manual/en/function.array-search.php] on the array.This will return the first key found with a matching value.

array_keys() [http://php.net/manual/en/function.array-search.php] returns an array of the keys.

key()[http://php.net/manual/en/function.key.php] returns the key at a given array element.

answered Feb 22, 2017 at 4:50

Alex

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