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@ 2015-03-31T01:59:52Z

<?php
$a1 = array();
$a2 = array(1 => 'data');
$result = array_merge($a1, $a2);
var_dump($result);

$a2 = array("1" => 'data');
$result = array_merge($a1, $a2);
var_dump($result);

$a2 = array("a" => 'data');
$result = array_merge($a1, $a2);
var_dump($result);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
array_merge: documentation ( source)

preferences:dark modelive preview

28.53 ms | 402 KiB | 5 Q