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@ 2017-07-07T02:00:40Z

<?php

$inputArray = ['foo', 'bar', 'foz', 'baz', 'fozboo'];

$endResult = [];

foreach (array_chunk($inputArray, 2) as $pair) {
    
    $endResult[] = $pair[0] . $pair[1];
    
}

var_dump($endResult);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
array_chunk: documentation ( source)

preferences:dark modelive preview

38.84 ms | 402 KiB | 5 Q