PHP array comparison method to find continuous numbers

$data = array();
$data[]= array("01" ,"02", "18" , "29" , "31" , "32");
$data[]= array("02" ,"09", "11" , "22" , "24" , "27");
$data[]= array("07" ,"16", "26" , "27" , "29" , "31");
$data[]=array("04", "05", "07", "10", "13", "25");
$data[]=array("02", "04", "05", "08", "19", "22");
$data[]=array("03", "04", "15", "25", "26", "30");
$data[]=array("01", "03", "06", "12", "16", "32");
$data[]=array("01", "05", "14", "17", "22");
//Judge more than 3 consecutivefunction checkAll($sourceArr2D) {
  $count = sizeof($sourceArr2D);
  for($i=0; $i<$count; $i++){
    check_h($sourceArr2D[$i], $i);//Find horizontal direction    if($i>0) {
      check_v($sourceArr2D, $i);// Find the vertical direction      check_l($sourceArr2D, $i);// Find/direction      check_r($sourceArr2D, $i);// Find the direction    }
  }
}
//Judge horizontal direction$h = array();// Save search results in the horizontal directionfunction check_h($arr, $rownum) {
  //sort($arr, SORT_NUMERIC);
  global $h;
  $flag = false;
  for($i=2; $i<6; $i++){
    if( $arr[$i-2]==$arr[$i]-2 ){
    // Because the numbers in the array are not repeated and orderly, it is a trick      if(!$flag) {
        $h[$rownum] = array($arr[$i-2], $arr[$i-1], $arr[$i]);
        $flag = true;
      }else{
        array_push($h[$rownum], $arr[$i]);
      }
    }
  }
}
//Judge vertical direction$v = array();// Save search results in the vertical directionfunction check_v($sourceArr2D, $rownum) {
  global $v;
  for($i=0; $i<6; $i++){
    $val = $sourceArr2D[$rownum][$i];
    if( in_array($rownum...$val, $v) ){
      continue;
    }
    if( in_array($val,$sourceArr2D[$rownum-1]) && in_array($val,$sourceArr2D[$rownum+1]) ){
      array_push($v, ($rownum-1)...$val, $rownum...$val, ($rownum+1)...$val);
      $tmp = $rownum + 2;
      while( ($tmp < sizeof($sourceArr2D)) && in_array($val, $sourceArr2D[$tmp]) ){
        array_push($v, $tmp...$val);
        $tmp++;
      }
    }
  }
}
// Judgment/Direction$l = array();// Save/Search results in directionfunction check_l() {
}
//Judge direction$r = array();// Save search results in the directionfunction check_r() {
}
// End the definition and start the applicationcheckAll($data);
echo
//Long-horizontal search:print_r($h);
echo
//Look in the vertical direction:print_r($v);
echo
//Looking in the direction:print_r($l);
echo
//Looking in the direction:print_r($r);