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run code in 200+ php & hhvm versions
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<?php var_dump(ord("ΓΏ") . "\n" . unpack('H*', chr(195)));
Output for 5.4.0 - 7.3.0rc6
Notice: Array to string conversion in /in/cHIEH on line 3 string(9) "195 Array"
Output for 4.3.0 - 4.3.9, 4.3.11 - 5.0.2, 5.0.5 - 5.3.29
string(9) "195 Array"
Output for 4.3.10, 5.0.3 - 5.0.4
Warning: unpack(): Type H: outside of string in /in/cHIEH on line 3 string(9) "195 Array"