多维数组PHP合并重复的数组值 [英] merge duplicate array values in a multidimensional array php

问题描述

我有一个多维数组说，

Array
(
    [0] => Array
        (
            [id] => 1
            [email_id] => [e-mail]
            [password] => test
        )

    [1] => Array
        (
            [id] => 2
            [email_id] => [e-mail]
            [password] => test
        )

    [2] => Array
        (
            [id] => 3
            [email_id] => [e-mail]
            [password] => pass
        )

)

下面上述阵列中，密码键有两个键相同的值，我需要合并具有重复值得到下面的输出数组，

Here in the above array, password key has same value in two keys, i need to merge the arrays which have duplicate values to get the following output,

Array
(
     [0] => Array
            (
               [0] => Array
                (
                    [id] => 1
                    [email_id] => [e-mail]
                    [password] => test
                )

            [1] => Array
                (
                    [id] => 2
                    [email_id] => [e-mail]
                    [password] => test
                )
            ) 
    [1] => Array
        (
            [id] => 3
            [email_id] => [e-mail]
            [password] => pass
        )

)

如何做到这一点？我试过array_merge＆安培; foreach循环，但我不能得到这个输出

How to do this ? i've tried array_merge & foreach loops, but i can't get this output

推荐答案

尝试，

$arr = array( array('id'=>1, 'email_id'=>'[e-mail]', 'password'=>'test'),
  array('id'=>2, 'email_id'=>'[e-mail]', 'password'=>'test'), 
  array('id'=>3, 'email_id'=>'[e-mail]', 'password'=>'pass'));

  $new_arr = array();
  foreach($arr as $k => $v) {
      if( is_array($arr[$k+1]) && $arr[$k]['password'] === $arr[$k + 1]['password'] )
          $new_arr[] = array($arr[$k], $arr[$k+1]);
      else if( in_array_recursive($arr[$k]['password'], $new_arr) === FALSE ) 
              $new_arr[] = $v;
  }

  function in_array_recursive( $val, $arr) {
      foreach( $arr as $v ) {
          foreach($v as $m) {
              if( in_array($val, $m ) )
                  return TRUE;      
          }
      }
      return FALSE;
  }

  print_r($new_arr);

演示

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