Returning 2 Values from a series of functions

Question

Hi and good day to all members, admin and to everyone. I would like to ask a question that has a connection from my previous post which can be seen here entitled Crypto-Js different output from mcrypt Upon chage of data to encrypt. Now my question is I made another php function that will eventually call this function stated in the link. See below the basic php function I created.

function login($word,$word2)
{

$word = mcrypts_encrypt($word);
$word2 = mcrypts_encrypt($word2);

    return $word;
    return $word2;

}

Now my question is this, I have tried placing the $word and the $word 2 with real data such as CROW and Blader but It only echoes the encrypted word of CROW ($word) and not Blader ($w0rd2).

For reference purpose I will also include the script for the encrypt.

MCRYPT_ENCRYPT

function mcrypts_encrypt($encrypted)
{
//Padding 6/25/2014
    $pad = 16 - (strlen($encrypted) % 16);
    $encrypted = $encrypted . str_repeat(chr($pad), $pad);
//Encrypt//Decode
    $iv = base64_decode('AAAAAAAAAAAAAAAAAAAAAA==');
    $key = base64_decode('ITU2NjNhI0tOc2FmZExOTQ==');
    $plaintext = mcrypt_encrypt( MCRYPT_RIJNDAEL_128, $key, $encrypted, MCRYPT_MODE_CBC,  $iv );
//Return encrypted Data
    return base64_encode($plaintext);
}

Thanks for the help in advance.

`return {$word, $word2};` Also, in javascript, your variables don't need to start with the dollar sign. — Kodlee Yin, Jun 26 '14 at 15:52
I'm sorry sir but this is not a javascript. As you can see on my second code this is a function created using php only. — user3771496, Jun 26 '14 at 15:54

score 1 · Accepted Answer · answered Jun 26 '14 at 16:01

You can only call return from a function once, at that point, the flow of code is returned back to the caller.

To pass multiple values back to the caller, return an array containing both of the values, e.g.

function login($word,$word2)
{
    $word = mcrypts_encrypt($word);
    $word2 = mcrypts_encrypt($word2);

    return array($word, $word2);
}

and use as this;

$encrypted = login('first-word', 'second-word');
echo $encrypted[0]; // the first word, encrypted
echo $encrypted[1]; // the second word, encrypted

Thanks for the Answer Sir. I used it as a reference to what I'm doing right now and it worked. Thanks a lot. — user3771496, Jun 26 '14 at 16:06

joaofgf · Answer 2 · 2014-06-26T16:56:25.737

This works

<?php
function login($word,$word2)
{
    $word = mcrypts_encrypt($word);
    $word2 = mcrypts_encrypt($word2);
    return array($word, $word2);
}
function mcrypts_encrypt($encrypted)
{
   //Padding 6/25/2014
    $pad = 16 - (strlen($encrypted) % 16);
    $encrypted = $encrypted . str_repeat(chr($pad), $pad);
    //Encrypt//Decode
    $iv = base64_decode('AAAAAAAAAAAAAAAAAAAAAA==');
    $key = base64_decode('ITU2NjNhI0tOc2FmZExOTQ==');
    $plaintext = mcrypt_encrypt( MCRYPT_RIJNDAEL_128, $key, $encrypted, MCRYPT_MODE_CBC,  $iv );
    //Return encrypted Data
    return base64_encode($plaintext);
}

var_dump(login("test1", "test2"));
?>

outputs:

array(2) {
  [0]=>
  string(24) "eeyZfxyUnMykJ23fMamEBQ=="
  [1]=>
  string(24) "0egb4dfuXbgFg7GzuuBZcQ=="
}

But when I tried to comment this an error shows.`Array to string conversion` — user3771496, Jun 26 '14 at 16:01

score 0 · Answer 3 · answered Jun 26 '14 at 16:34

function login($word,$word2)
{

    $word = mcrypts_encrypt($word);
    $word2 = mcrypts_encrypt($word2);
    $returnArray["user"]  = $word;
    $returnArray["pass"]  = $word2;
    return $returnArray;   
}

function call

$loginValues  = login('CROW','Blader');
extract($loginValues);
print $user; // prints $word
print $pass; // prints $word2

Returning 2 Values from a series of functions

3 Answers3