PHP Bidimensional数组和foreach循环

I follow struggling with bidimensional arrays and foreach loops. The following code shows a magazines array, each of them points to an unidimensional Articles array. Right now is storing three Articles for each magazine (just the Article's Title). I would like to know how to associate a Bidimensional array so that can I store the Author and PagesNumber besides the Title, for each article belonging a magazine. Could you point me in the right direction? Thanks in advance.I follow struggling with bidimensional arrays a