$array1 = Array( 
  	0 => Array("id" => 1), 
  	1 => Array("id" => 3), 
  	2 => Array("id" => 4), 
  	3 => Array("id" => 7), 
  	4 => Array("id" => 10) 
  ); 
  $array2 = Array( 
  	0 => Array("id" => 1), 
  	1 => Array("id" => 4), 
  	2 => Array("id" => 3) 
  ); 
  $array3 = Array(); 
  foreach ($array1 as $a1) 
  { 
  	$flag = true; 
  	foreach ($array2 as $a2) 
  	{ 
  		if ($a1 == $a2) 
  			$flag = false; 
  	} 
  	if ($flag) 
  		$array3[] = $a1; 
  } 
  die(print_r($array3));