Online PHP editor | refs for fvemu

@ 2016-09-06T19:46:20Z

<?php

$exists = 'ok';
$array = ['var' => 'var1', 'bar' => 'bar1', 'exists' => 'foo'];

foreach ($array as $key => $value) {
    if (isset(${$key})) {
        ${'data_' . $key} = $value;
    } else {
        ${$key} = $value;
    }
}

var_dump($var, $bar, $exists, $data_exists);