Compare values of 2 arrays with PHP

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Dear colleagues,

I have the following situation:

BD 01 

ID | DESCRICAO | DRADS
1  | REGISTRO1 | 1,2,3
2  | REGISTRO2 | 1

BD 02 

ID | DESCRICAO | DRADS
1  | REGISTRO1 | 1,2
2  | REGISTRO2 | 1

It is necessary to make a <select></select> by pulling only the BD 01 records that have the same DRADS of the BD 02 ... That is, the BD 01 will only be able to select the record (s) ) with the same DRADS (s) of DB 02.

The values of DB 01, I get through a while(...) . As for the values of DB 02, I get through $_SESSION['BD_02_DRADS'] .

I have tried to compare the $_SESSION['BD_02_DRADS'] + $row['BD_01_DRADS'] values with the in_array() and array_diff() functions but I could not get the result I need.

Using in_array() , results that have more than one DRADS appear duplicate.

Using array_diff() , I can only display <select></select> if the DRADS are identical.

I do not know if I could be clear enough, but I'll try to leave an example of what I need below: 

while($row = $stmt->fetch(PDO::FETCH_ASSOC)){
     $BD_01_DRADS = explode(",", $row['BD_01_DRADS']);
     $BD_02_DRADS = explode(",", $_SESSION['BD_02_DRADS']);

     $array1 = $BD_01_DRADS;
     $array2 = $BD_02_DRADS;
}

So I need the following condition: SE TIVER $BD_01_DRADS EM $BD_02_DRADS, EXIBE UM <option>...</option> dentro do <select></select> com os respectivos dados deste registro .

Guys, I apologize if I was not clear enough. But I am available for any clarification.

Any and all help is welcome.

Thank you all!

    
asked by anonymous 07.04.2017 / 10:41

1 answer

4

Does the array_intersect array use solve?

  

Code 

<?php
 $array1 = array(1,2,3);
 $array2 = array(1,2);
 $result = array_intersect ($array1, $array2);
?>
  

Result 

   array (
     0 => 1,
     1 => 2,
   )

I'm going to leave here a very useful indication about testing arrays online.

array_intersect

Available Functions

    
07.04.2017 / 12:18
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