PHP Multidimensional array initialization

问题

I am initializing a php array as follows

$newArray = array();
$newArray['2014-13-03']['SMD']['ID'] = 5;
$newArray['2014-13-03']['SMD']['ID'] = 10;

Just wanted to check if you guys think this is a wrong way to insert data into an array. It is working just fine, but still wanted to check from optimization standpoint

来源：https://stackoverflow.com/questions/22183704/php-multidimensional-array-initialization