Apply string to class constant

[peter279k]

Changed log

• Using the string class constant approach to replace the string class name.

[rbeuque74]

Hello,
Thanks for your contribution.

What is the compatibility of this modification with our PHP versions support? (Compatible with PHP 7.4, 8.0, 8.1, 8.2.)

Thanks
Romain

[peter279k]

According to the reference, the feature is compatible with PHP 7.4+ version because it's available since PHP 5.5 version.

[codecov]

Codecov Report

Merging #139 (13c0992) into master (d4840af) will not change coverage.
Report is 3 commits behind head on master.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #139   +/-   ##
=========================================
  Coverage     97.52%   97.52%           
  Complexity       36       36           
=========================================
  Files             1        1           
  Lines           121      121           
=========================================
  Hits            118      118           
  Misses            3        3