Inserting multiple values from an array using array_unshift() method

Question

array_unshift is using for inserting one or many values at the beginning of an array. Now I have an array-

$data = [1, 3, 4];

Another array is needed to insert at the beginning of the $data array.

$values = [5, 6];

Here I want to insert the values 5, 6 at the beginning of the $data array, and the resulting $data would be-

$data = [5, 6, 1, 3, 4];

Note: I know there is a way like array_unshift($data, ...$values); but this is working from php7.3.x AFAIK. I need to do it below php7.3.

Is there any way to do this without looping the $values array in the reverse order?

Use $data = array_merge($values, $data); Look example: phpize.online/… — Slava Rozhnev
– Slava Rozhnev, Commented Dec 15, 2020 at 9:50
I am being stupid. It's a great idea. @SlavaRozhnev write it as an answer I will accept this. — Sajeeb Ahamed
– Sajeeb Ahamed, Commented Dec 15, 2020 at 9:51
Probably beneficial to show researchers this related page: stackoverflow.com/q/51250941/2943403 — mickmackusa
– mickmackusa ♦, Commented Jul 15, 2021 at 3:33

Slava Rozhnev · Accepted Answer · 2020-12-15 09:52:07Z

2

Function array_merge exists since PHP 4:

<?php
$data = [1, 3, 4];

$values = [5, 6];

$data = array_merge($values, $data);

print_r($data);

Live PHP sandbox

answered Dec 15, 2020 at 9:52

Slava Rozhnev

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Nads · Accepted Answer · 2020-12-15 09:55:25Z

2

You should use array_merge instead of array_unshift.

$data = [1, 3, 4];
$values = [5, 6];

$result = array_merge($values, $data); // the sequence of the array inside array_merge will decide which array should be merged at the beginning.

answered Dec 15, 2020 at 9:55

Nads

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4 Comments

Sajeeb Ahamed Over a year ago

This is identical to the @SlavaRozhnev answer.

Nads Over a year ago

I see but when I sees that answer, I already posted mine too. Not an issue the aim is to get a solution.

Sajeeb Ahamed Over a year ago

You still can find a better solution or an alternative solution. This will help other.

Tami Over a year ago

This one gets a vote for additionally explaining how array_merge works with the orders

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