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A simple example of php three-dimensional array deduplication

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Release： 2016-07-25 08:55:37
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  3. // Create a new empty array.

  4. $tmp_array = array();
  5. $new_array = array();
  6. // 1. Loop out all the rows. ($val is a certain row)
  7. foreach($my_array as $k => $val){
  8. $hash = md5(json_encode($val));
  9. if (in_array($hash, $tmp_array)) {
  10. echo('This row already exists');
  11. }else{ // bbs.it-home.org
  12. // 2. In the body of the foreach loop, assign the hash of each row of array objects to the temporary array中.
  13. $tmp_array[] = $hash;
  14. $new_array[] = $val;
  15. }
  16. }
  17. print_r($new_array);

  18. //$new_array is none after filtering Array of repeated data.

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Related labels：
php三维数组去重的简单例子
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