Get value in a 2D array in PHP -

i have array:

$array = array (     "key1" => "value 1",     "key2" => "value 2",     "key3" => "value 3",     "key4" => "value 4",     ... );

i submitting key form, want assign variable value belongs key, example:

$key = $_post['key']; $value = ?????; //this need

this might simple, haven't done in long time , have forgotten how it.

thanks.

this should trick:

$value = $array[$key];

or without variable:

$value = $array[$_post['key']];

if receive notice: undefined index ... should check array before try value with:

$value = array_key_exists($_post['key'], $array) ? $array[$_post['key']] : null;

this condition checks if key exists. if so, gets value. if not, value of $value null.

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