$aArray = Array (
[0] => Array (
[id] => 1
[opt] => reg_limit
[value] => 0
)
[1] => Array (
[id] => 3
[opt] => pages_offline
[value] => []
)
[2] => Array (
[id] => 4
[opt] => devolp
[value] => TRUE
)
)
foreach($aArray AS $aInnerArray){
if($aInnerArray['opt'] == 'devolp' && $aInnerArray['value'] == TRUE){
//YOUR USE CASE
}
}