Who will do the visa application? Will you get sponsored? Yes he can if he shows enough funds or a stable source of it (bank statements or stable work history) to support your entire stay. He can make a stat dec and you can add it to your application for extra oomph.
Note that AU is a bit paranoid with partners (see all the partner visa changes the past few years) so to make your case stronger ensure you add enough proof that you <b class="Bold">will</b> definitely return to PH after your visit.
If this is your first visit to AU or any country with strict visa applications (think US/UK), they'll work from the assumption that you'll TNT (same policy as the US), so the burden of proof is on you to prove immigration wrong.
So provide the usuals that confirm your strong ties to PH: stable work history, good travel history, land titles/car loans, your own show money if you have it.