how to fetch out the index/key from an array using its value in PHP?

how to fetch ou开发者_C百科t the index/key from an array using its value in PHP?

If i have an array say :

array{
        0 => 'Me',
        1 => 'You',
        2 => 'We'
}

then here how to find that value "You" has key "1"? Using any php logic.

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array_search does the job I think

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$array =array{
    0 => 'Me',
    1 => 'You',
    2 => 'We'
}
$searchValue = "YOU"; 
$keys = array_keys($array, $searchValue); 

#test it 
print_r($keys); 

this would work fine.

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$b = get_array_index($a, "YOU"); 
echo $b; //  print '1'