Folding for PHP alternative syntax

[mkslanc]

Issue #, if available: #5170

Description of changes:

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[codecov]

Codecov Report

Attention: Patch coverage is 98.14815% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 86.59%. Comparing base (fb2d083) to head (3fb1c5b).
Report is 1 commits behind head on master.

Files	Patch %	Lines
src/mode/folding/php.js	97.05%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5491      +/-   ##
==========================================
+ Coverage   86.56%   86.59%   +0.03%     
==========================================
  Files         588      590       +2     
  Lines       42525    42640     +115     
  Branches     7067     7093      +26     
==========================================
+ Hits        36810    36923     +113     
- Misses       5715     5717       +2     

Flag	Coverage Δ
unittests	86.59% <98.14%> (+0.03%)	⬆️

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