无需键即可将数组添加到数组[关闭]

I know this must be a huge newbie question, but I didn't find the correct answer. Let's see. I have an array set:

$global_array = array();

Then, I want to add an arry inside $global_array, but I dont want the keys. So, the result I want to get is:

 $global_array = array(
   array(
      'bla',
      'bla'
   )
 );

Sorry for the noob question. Thanks!

This should help:

$global_array[] = array('bla','bla');

All arrays will have keys...

If not defined as default 0,1,2,3...