[BUGFIX] Fix PHP warning if `as` is not set

[twoldanski]

Resolves: #714

[coveralls]

Pull Request Test Coverage Report for Build 8798356550

Details

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 64.411%

---

Totals
Change from base Build 8571035354:	0.0%
Covered Lines:	847
Relevant Lines:	1315

---

💛 - Coveralls