Swap array values with php

Question

I have an array:

array(     0 => 'contact',     1 => 'home',     2 => 'projects' ); 

and I need to swap the 'contact' with 'home', so the array would be like:

array(     0 => 'home',     1 => 'contact',     2 => 'projects' ); 

how can I do this with PHP? :)

Answer 1

I wrote simple function array_swap: swap two elements between positions swap_a & swap_b.

function array_swap(&$array,$swap_a,$swap_b){    list($array[$swap_a],$array[$swap_b]) = array($array[$swap_b],$array[$swap_a]); } 

For OP question (for example):

$items = array(   0 => 'contact',   1 => 'home',   2 => 'projects' );  array_swap($items,0,1); var_dump($items); // OUTPUT  array(3) {    [0]=> string(4) "home"    [1]=> string(7) "contact"    [2]=> string(8) "projects"  } 

Update Since PHP 7.1 it's possible to do it like:

$items = [   0 => 'contact',   1 => 'home',   2 => 'projects' ];  [$items[0], $items[1]] = [$items[1], $items[0]];  var_dump($items); // OUTPUT  array(3) {    [0]=> string(4) "home"    [1]=> string(7) "contact"    [2]=> string(8) "projects"  } 

It's possible through Symmetric array destructuring.