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run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump( -PHP_INT_MAX - 15556); var_dump( -PHP_INT_MAX); //is -PHP_INT_MAX - 1
Output for 4.4.0 - 4.4.9, 5.0.5, 5.1.1 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
float(-9.2233720368548E+18) int(-9223372036854775807)
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/KE2r7 on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.11, 5.0.0 - 5.0.4
Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/KE2r7 on line 2 int(-15556) Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/KE2r7 on line 3 int(0)