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run code in 200+ php & hhvm versions
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<?php var_dump("\u{2121}", IntlChar::getFC_NFKC_Closure("\u{2121}")); var_dump("\u{1D2D}", IntlChar::getFC_NFKC_Closure("\u{1D2D}")); ?>
based on L7qdX
Output for 7.0.0 - 7.0.4, 7.0.6 - 7.2.0
string(3) "℡" string(3) "tel" string(3) "ᴭ" string(2) "æ"
Output for 7.0.5
Fatal error: Uncaught Error: Class 'IntlChar' not found in /in/RigPT:2 Stack trace: #0 {main} thrown in /in/RigPT on line 2
Process exited with code 255.
Output for 5.3.17 - 5.6.28
Fatal error: Class 'IntlChar' not found in /in/RigPT on line 2
Process exited with code 255.