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  1. <?php
  2. $arr = array(
  3.   'id'              => '147',
  4.   'nome'            =>'João',
  5.   'email'           => 'joao@teste.com',
  6.   'data_nascimento' => '05/01/1987',
  7.   'numero_1'        => '1',
  8.   'rua_1'           => 'rua 1', 
  9.   'numero_2'        => '2',
  10.   'rua_2'           => 'rua 2',
  11.   'submit'          => 'Salvar' 
  12. );
  13. $newArr = array();
  14. foreach ($arr as $k => $v) {
  15.     $partes = explode("_", $k);
  16.     if (count($partes) > 1) {
  17.      	$repetido = 0;
  18.     	foreach ($arr as $k2 => $v2) {
  19.             if (strpos($k2, $partes[0]."_") === 0) {
  20.                 $repetido++;
  21.             }
  22.         }
  23.         if ($repetido > 1)
  24.             $newArr[$k] = $v;
  25.     }
  26. }
  27. var_dump($newArr);
  28.  
  29. //https://pt.stackoverflow.com/q/40557/101
Success #stdin #stdout 0.02s 82560KB
comments (?)
stdin 
Standard input is empty
stdout 
array(4) {
  ["numero_1"]=>
  string(1) "1"
  ["rua_1"]=>
  string(5) "rua 1"
  ["numero_2"]=>
  string(1) "2"
  ["rua_2"]=>
  string(5) "rua 2"
}
https://ideone.com/3hDrh9
language:
PHP (php 7.3.5)
created:
6 years ago
visibility:
public

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