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run code in 200+ php & hhvm versions
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<?php $id=11567651; $i=1; print gmp_strval(gmp_add($id,"-$i"));
based on RktTt
Output for 5.4.10 - 5.5.34, 5.6.8 - 5.6.20, 5.6.28 - 7.0.5, 7.0.20 - 7.2.0
11567650
Output for 7.0.6
Fatal error: Uncaught Error: Call to undefined function gmp_strval() in /in/r7YIP:5 Stack trace: #0 {main} thrown in /in/r7YIP on line 5
Process exited with code 255.
Output for 5.3.20 - 5.3.29, 5.5.35, 5.6.21
Fatal error: Call to undefined function gmp_strval() in /in/r7YIP on line 5
Process exited with code 255.