Online PHP editor | rfc for e5Bd7

@ 2020-01-29T17:47:40Z

<?php

$array = [["id"=>"111","email_adr"=>"AAA","ad_owner_email"=>"BBB"],  
          ["id"=>"111","email_adr"=>"BBB","ad_owner_email"=>"CCC"],
          ["id"=>"111","email_adr"=>"BBB","ad_owner_email"=>"AAA"],  //<--discarded
          ["id"=>"500","email_adr"=>"QQQ","ad_owner_email"=>"PPP"],  
          ["id"=>"500","email_adr"=>"PPP","ad_owner_email"=>"QQQ"],  //<--discarded
          ["id"=>"999","email_adr"=>"PPP","ad_owner_email"=>"QQQ"],  //<-saved because id=999 
          ["id"=>"888","email_adr"=>"PPP","ad_owner_email"=>"QQQ"],
          ["id"=>"888","email_adr"=>"PPP","ad_owner_email"=>"QQQ"],
          ["id"=>"888","email_adr"=>"QQQ","ad_owner_email"=>"PPP"],  //<--discarded
    ];

$tmp1 = []; 

$array = array_unique($array, SORT_REGULAR);

function getIndex($data,$ne){ 
     
    foreach($data as $key=>$val){
        if ($val['id'] === $ne['c'] && $val['email_adr'] === $ne['a'] && $val['ad_owner_email'] === $ne['b']) return $key;
    }
    return -1;
}

foreach($array as $record){
    $tmp1[$record['id']][$record['email_adr']][] = $record['ad_owner_email']; 
}
//  print_r($tmp1);

foreach($array as $ind=>$record){
    
    $id       = $record['id'];
    $em_owner = $record['ad_owner_email'];
    $em_adr   = $record['email_adr'];
    
    if (isset( $tmp1[$id][$em_owner] ) && 
        !empty( $tmp1[$id][$em_owner] ) && 
        in_array( $em_adr,   $tmp1[$id][$em_owner] ) &&
        in_array( $em_owner, $tmp1[$id][$em_adr] )
        )
    {    
      
        $tm1 = array_search($em_adr,   $tmp1[$id][$em_owner]);
        $tm2 = array_search($em_owner, $tmp1[$id][$em_adr]);
        
        $in = getIndex($array, ['a'=>$em_owner, 'b'=>$em_adr, 'c'=>$id]);
  
            unset( $tmp1[$id][$em_adr][$tm2] );  
            unset( $tmp1[$id][$em_owner][$tm1] );  
            unset( $array[$in] );  
    }     
} 
 
 sort($array);
 print_r($array);

Output for git.master, git.master_jit, rfc.property-hooks: Array ( [0] => Array ( [id] => 111 [email_adr] => AAA [ad_owner_email] => BBB ) [1] => Array ( [id] => 111 [email_adr] => BBB [ad_owner_email] => CCC ) [2] => Array ( [id] => 500 [email_adr] => QQQ [ad_owner_email] => PPP ) [3] => Array ( [id] => 888 [email_adr] => PPP [ad_owner_email] => QQQ ) [4] => Array ( [id] => 999 [email_adr] => PPP [ad_owner_email] => QQQ ) )

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