How can I check if a value is already in an array?

[thread_PHP]

Hi all
Arrays in php
How can I check if a value is already in an array?

[laserlight]

You can use [man]in_array/man. If you need the corresponding key, use [man]array_search/man.

[popsyjunior]

use if ( !emty([array name] ){ action }
for example:

if ( !emty($profile_array ){
echo "$profile_array[age];
}

[popsyjunior]

Sorry I meant :

use if ( !empty([array name] ){ action }
for example:

if ( !empty($profile_array ){
echo "$profile_array[age];
}

In my previous post

[laserlight]

popsyjunior: that is not correct. Just because the array is not empty does not mean that it contains an element with that particular key. It should be:

if (!empty($profile_array['age'])) { // isset may be better
    $profile_array['age'];
}

But this is different from checking if a value is present in an array.