Question

Taking a dictionary as an example, let’s say I’ve got the following array to catalog the pronunciations of a given word:

$pronunciation["text"] = array("alpha", "beta", "gamma", "delta", "epsilon");

$pronunciation["definition"] = array(1, 2, NULL, NULL, 1);

text contains the pronunciation that will be displayed to the user, while definition contains the ID for the definition in the list where that pronunciation applies. If definition is NULL, it’s not associated with any particular definition, and should be displayed elsewhere in the entry.

Now, if I try to do something like the following:

$key = array_search(1, $pronunciation["definition"]);

All I’ll get is 0, since that’s the first key in definition that contains the value. Likewise, substituting NULL returns 3, however both of these actually have another related key that I’m trying to fetch.

Is there a way to get it to return all related keys without having to resort to brute force methods such as a for loop?

Answer 1

Try this one:

array_keys($pronunciation["definition"],1)