How should 2 elements of an array be combined in PHP?

Question

I want to combine 2 elements in an array in PHP, how can I do this. Please tell me please.

$arr = array('Hello','World!','Beautiful','Day!'); // these is my input //i want output like array('Hello World!','Beautiful Day!'); 

Answer 1

The general solution would look something like this:

 $result = array_map(function($pair) { return join(' ', $pair); }, array_chunk($arr, 2)); 

It combines words in pairs, therefore 1st, 2nd, 3rd and 4th, etc.

Answer 2

In this case, it will be very simple:

 $result = array($arr[0].' '.$arr[1], $arr[2].' '.$arr[3]); 

A more general approach would be

 $result = array(); for ($i = 0; $i < count($arr); $i += 2) { if (isset($arr[$i+1])) { $result[] = $arr[$i] . ' ' . $arr[$i+1]; } else { $result[] = $arr[$i]; } } 

Answer 3

If your array is not tied to 4 elements

 $arr = array(); $i = 0; foreach($array as $v){ if (($i++) % 2==0) $arr[]=$v.' '; else { $arr[count($arr)-1].=$v; } } 

Live: http://ideone.com/VUixMS

Answer 4

Assuming you don’t know the total number of elements, but know that they will always be an even number (otherwise you won’t be able to join the last element), you can simply iterate over $arr with step 2:

 $count = count($arr); $out=[]; for($i=0; $i<$count; $i+=2;){ $out[] = $arr[$i] . ' ' .$arr[$i+1]; } var_dump($out); 

Answer 5

There he is:

 $arr = array('Hello', 'World!', 'Beautiful', 'Day!'); $result = array(); foreach ($arr as $key => $value) { if (($key % 2 == 0) && (isset($arr[$key + 1]))) { $result[] = $value . " " . $arr[$key + 1]; } } print_r($result); 

Answer 6

A simple solution:

 $new_arr=array($arr[0]." ".$arr[1], $arr[2]." ".$arr[3]);