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run code in 150+ php & hhvm versions
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<?php $ent = new stdClass; $ent->menge = 30; $ent = unserialize(serialize($ent)); $a = function(&$e) { $e = unserialize(serialize($e)); $e = &$e; return $e; }; $ent = $a($ent); $t = new stdClass; $t->flt_menge = '10.665'; $flt_menge = $t->flt_menge; var_dump(bcsub($ent->menge, $flt_menge));
Output for 5.3.0 - 5.5.28, 5.5.31 - 5.5.33, 5.5.35 - 5.6.12, 5.6.16 - 5.6.19, 5.6.21 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.0.4, 7.0.6 - 7.1.0
string(2) "19"
Output for 7.0.5
Fatal error: Uncaught Error: Call to undefined function bcsub() in /in/Y2mJc:20 Stack trace: #0 {main} thrown in /in/Y2mJc on line 20
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.5.29 - 5.5.30, 5.5.34, 5.6.13 - 5.6.15, 5.6.20
Fatal error: Call to undefined function bcsub() in /in/Y2mJc on line 20
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/Y2mJc on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/Y2mJc on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Y2mJc on line 6
Process exited with code 255.