Comparing arrays with identical values

Question

$array1 = array(1,1,1);  
$array2= array(1,5,9,2,2,1);

I need to compare $array2 with $array1 and if $array2 has the same identical values should return true, otherwise should be returning false. In this case it should return false

http://stackoverflow.com/a/901831/1415724 (After Googling "compare arrays php") ;-) — Funk Forty Niner, Sep 08 '13 at 17:06
So why don't you google on comparing arrays in php ... I bet 49Cents, you'll find your answer within 20 seconds... — djot, Sep 08 '13 at 17:06
@Fred -ii- But I unfortunately do not get 0.49Euro(!) for each ;) of them — djot, Sep 08 '13 at 17:10
@djot LMAO! yeah and if I had a nickel for every time an OP doesn't bother Googling, I'd be a stockholder with Google ;-) — Funk Forty Niner, Sep 08 '13 at 17:11
you are all so intelligent you find several results to compare arrays but not repeated array since if it finds a value, in_array turns true.. btw to use that method i need to use the same keys @Fred-ii- so clever — Rz --, Sep 08 '13 at 17:22
possible duplicate of [PHP compare array](http://stackoverflow.com/questions/901815/php-compare-array) — larrylampco, Sep 11 '13 at 22:26
@larrylampco how about no, has nothing to do with it.. and i wrote the solution for this and post under there — Rz --, Sep 12 '13 at 00:41

score 2 · Answer 1 · answered Sep 08 '13 at 17:11

2

You can use the == and === operators.

$array1 == $array2 only checks if the two arrays contain the same key/value pairs and $array1 === $array2 also checks if they are in the same order and if they are of the same type.

See the PHP manual.

answered Sep 08 '13 at 17:11

SharpKnight

455
2
14

yes i know this method but i can't use the same keys – Rz -- Sep 08 '13 at 17:25

Sahil Mittal · Answer 2 · 2013-09-08T17:32:55.450

1

if ( $array1 == $array2 ) {
    return true;
}
else{
    return false;
}

Note: keys must be same too.

To check only values:

if(!array_diff($array1, $array2) && !array_diff($array2, $array1)) 
   return true;

edited Sep 08 '13 at 17:32

answered Sep 08 '13 at 17:08

Sahil Mittal

20,697
12
65
90

SO would have moved such an answer given by me to comments ... as too trivial ;) – djot Sep 08 '13 at 17:13
yes i know this method but i can't use the same keys – Rz -- Sep 08 '13 at 17:24
By saying `Well, doesn't work.`- will not help you. What error you are getting? – Sahil Mittal Sep 10 '13 at 05:35
because `array_diff` checks only one value, i have `$array1 = array(1,1,1); $array2= array(1,5,9,2,2,1);` should be false because i don't have three 1 on `$array2 ` – Rz -- Sep 11 '13 at 16:36
Can reduce that to `return ($array1 == $array2);` – HughHughTeotl Nov 21 '14 at 12:03

score 1 · Accepted Answer · answered Sep 11 '13 at 22:21

Well thanks @Shadowfax for trying help but i made the solution, so i post here if anyone have the same problem..

function compareArrayValues($array1,$array2){
$result= array();
for ($a=0; $a< count($array1); $a++){
    $array2=array_values($array2);
    for ($b=0; $b < count($array2) ; $b++) { 
        if ($array1[$a] == $array2[$b]){
            array_push($result,$array1[$a]);
            unset($array2[$b]);
            break;
        }
    }

}
if ($result == $array1){
    return true;
}else{
    return false;
}
}

Comparing arrays with identical values

3 Answers3