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  1. <?php
  2.  
  3. $data = json_decode(
  4. 	'[
  5. 	  {"ids": [9,10]},
  6. 	  {"ids": [1]},
  7. 	  {"ids": [3]},
  8. 	  {"ids": [4,5]},
  9. 	  {"ids": [1,2]},
  10. 	  {"ids": [5,8]},
  11. 	  {"ids": [8]},
  12. 	  {"ids": [2,3]},
  13. 	  {"ids": [10]},
  14. 	  {"ids": [11]}
  15. 	]', true
  16. );
  17.  
  18. $groups = array();
  19. $results = array();
  20.  
  21. while (!empty($data)) {
  22. 	$values = reset($data);
  23. 	$group = $result = array();
  24. 	$value = reset($data);
  25. 	addNumbersToGroup($value['ids'], $group);
  26. 	reset($group);
  27. 	do {
  28. 		searchValues(key($group), $group, $result);
  29. 	} while (next($group));
  30. 	$groups[] = $group;
  31. 	$results[] = $result;
  32. }
  33.  
  34. echo json_encode($results);
  35. var_dump($results);
  36.  
  37. function addNumbersToGroup($values, &$group) {
  38. 	foreach ($values as $number) {
  39. 		$group[$number] = !empty($group[$number]) ? $group[$number]++ : 1;
  40. 	}
  41. }
  42.  
  43. function searchValues($item, &$group, &$result) {
  44. 	global $data;
  45. 	foreach ($data as $key=>$value) {
  46. 		if (in_array($item, $value['ids'])) {
  47. 			$result[] = $value;
  48. 			addNumbersToGroup($value['ids'], $group);
  49. 			unset($value);
  50. 			unset($data[$key]);
  51. 		}
  52. 	}
  53. }
  54.  
Success #stdin #stdout 0.01s 20568KB
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Standard input is empty
stdout
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[[{"ids":[9,10]},{"ids":[10]}],[{"ids":[1]},{"ids":[1,2]},{"ids":[2,3]},{"ids":[3]}],[{"ids":[4,5]},{"ids":[5,8]},{"ids":[8]}],[{"ids":[11]}]]array(4) {
  [0]=>
  array(2) {
    [0]=>
    array(1) {
      ["ids"]=>
      array(2) {
        [0]=>
        int(9)
        [1]=>
        int(10)
      }
    }
    [1]=>
    array(1) {
      ["ids"]=>
      array(1) {
        [0]=>
        int(10)
      }
    }
  }
  [1]=>
  array(4) {
    [0]=>
    array(1) {
      ["ids"]=>
      array(1) {
        [0]=>
        int(1)
      }
    }
    [1]=>
    array(1) {
      ["ids"]=>
      array(2) {
        [0]=>
        int(1)
        [1]=>
        int(2)
      }
    }
    [2]=>
    array(1) {
      ["ids"]=>
      array(2) {
        [0]=>
        int(2)
        [1]=>
        int(3)
      }
    }
    [3]=>
    array(1) {
      ["ids"]=>
      array(1) {
        [0]=>
        int(3)
      }
    }
  }
  [2]=>
  array(3) {
    [0]=>
    array(1) {
      ["ids"]=>
      array(2) {
        [0]=>
        int(4)
        [1]=>
        int(5)
      }
    }
    [1]=>
    array(1) {
      ["ids"]=>
      array(2) {
        [0]=>
        int(5)
        [1]=>
        int(8)
      }
    }
    [2]=>
    array(1) {
      ["ids"]=>
      array(1) {
        [0]=>
        int(8)
      }
    }
  }
  [3]=>
  array(1) {
    [0]=>
    array(1) {
      ["ids"]=>
      array(1) {
        [0]=>
        int(11)
      }
    }
  }
}
https://ideone.com/e254UJ
language:
PHP (php 7.3.5)
created:
12 years ago
visibility:
public

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