Combine 3 array into one foreach loop

Question

i try with success when combine 2 array into one foreach loop ..

<?php
//var
$phone_prefix_array = $_POST['phone_prefix']; //prefix eg. 60 (for country code)
$phone_num_array    = $_POST['phone'];
$c_name_array       = $_POST['customer_name'];

foreach (array_combine($phone_prefix_array, $phone_num_array) as $phone_prefix => $phone_num) { //combine prefix array and phone number array
    $phone_var = $phone_prefix . $phone_num;
    $phone     = '6' . $phone_var;

    if ($phone_prefix == true && $phone_num == true) { //filter if no prefix number dont show

        echo $phone;
        //customer_name_here

    } else {
  }

}
?>

The result should be like this :

60125487541 Jake
60355485541 Kane
60315488745 Ray
63222522125 Josh

but now im not sure how to combine another array $c_name_array into foreach lopp

PHP version : 5.2.17

From the code posted it is not clear what your intention for the third array is. Could you elaborate? — Nikola Petkanski
– Nikola Petkanski, Commented Feb 6, 2013 at 8:20
It's not very clear on how do you want to combine all three arrays, can you post some sample data, and what you expect as result in your question? — Passerby
– Passerby, Commented Feb 6, 2013 at 8:22

Community · Accepted Answer · 2023-11-17 19:32:19Z

3

array_combine is a terrible workaround for your case and will not work if any value in the first array is not a valid key (i.e. not int or string)

PHP 5.3+ has a MultipleIterator for this:

$iterator = new MultipleIterator();
$iterator->attachIterator(new ArrayIterator($phone_prefix_array));
$iterator->attachIterator(new ArrayIterator($phone_num_array));
foreach ($iterator as $current) {
    $phone_prefix = $current[0];
    $phone_num = $current[1];
    // ...
}

Since PHP 5.4 you can write the loop more concise:

foreach ($iterator as list($phone_prefix, $phone_num)) {
    // ...
}

edited Nov 17, 2023 at 19:32

CommunityBot

11 silver badge

answered Feb 6, 2013 at 8:25

Fabian Schmengler

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2 Comments

rusly Over a year ago

but my php version is 5.2.17

Fabian Schmengler Over a year ago

Any chance to fix that? Support for PHP 5.2 has expired since Jan 2011, so there are no security fixes anymore for over two years.

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