<?php $str = "cao isso pala só temp que pala vai temp aparecer temp aqui cao"; $match=array(); preg_match_all('#\b(pala|cao|temp)\b#', $str, $match ); $return = array_unique( (array)$match[0] ); print_r($return); //$alvo = array('cao', 'pala', 'temp' ); //if( in_array( $return, $alvo) ){ // #do code... //}
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