Fix: php worker rules for namespaced names

[masterWeber]

*Issue #, if available: #4957

Description of changes:

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[codecov]

Codecov Report

Base: 86.07% // Head: 86.06% // Decreases project coverage by -0.00% ⚠️

Coverage data is based on head (8ae12d2) compared to base (0cdc74b).
Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4960      +/-   ##
==========================================
- Coverage   86.07%   86.06%   -0.01%     
==========================================
  Files         544      544              
  Lines       41432    41432              
  Branches     6537     6537              
==========================================
- Hits        35661    35659       -2     
- Misses       5771     5773       +2     

Flag	Coverage Δ
unittests	86.06% <ø> (-0.01%)	⬇️

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Impacted Files	Coverage Δ
src/layer/text.js	91.35% <0.00%> (-0.43%)	⬇️

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