Online PHP editor | refs for tFFKb

@ 2016-08-31T09:44:20Z

<?php

$test = [
    'nexus 7',
    'nexus 5',
    'nexus 57',
];

foreach($test as $string) {
    echo preg_replace(['~^(nexus)\s*(7)$~i', '~^(nexus).*+~i'], ['nexus 7', 'nexus'], $string), "\n";
}