ขอคำแนะนำในการเอาค่าออกมากจาก array ที่ซ้อนกันหลายชั้น เหมือนในรูปหน่อยครับ

foreach($all_array as $row_array){

}

if(isset($_SESSION['line']) && $_GET['act'] != 'del'){
		$_SESSION['line'] = $_SESSION['line'] + 1;
		$numLine = $_SESSION['line'] - 1;
		$_SESSION['statementDesc'][$numLine] = $_POST['statementDesc'];
		$_SESSION['lineAttr'][$numLine] = $_SESSION['lineConNew'];
		for($i=0; $i<$_SESSION['lineConNew']; $i++){
			$_SESSION['attr'][$numLine][$i] = $_SESSION['attrCon'][$i];
			$_SESSION['relation'][$numLine][$i] = $_SESSION['relationCon'][$i];
			$_SESSION['value1'][$numLine][$i] = $_SESSION['valCon1'][$i];			
		}
		header("location:promotion-add2.php");
	}

for($i=0; $i<$_SESSION['line']; $i++){
    for($j=0; $j<$_SESSION['lineAttr'][$i]; $j++){ 
        if($_SESSION['attr'][$i][$j] == 'ag')
            echo "Age<br>";
        else if($_SESSION['attr'][$i][$j] == 'gd')
            echo "Gender<br>";
    }
}