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<?php var_dump( '+' + '9223372036854775807' ); var_dump( '-' + '9223372036854775808') ?>
Output for 7.1.0
Warning: A non-numeric value encountered in /in/blFaP on line 2 int(9223372036854775807) Warning: A non-numeric value encountered in /in/blFaP on line 2 float(9.2233720368548E+18)
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.0.14
int(9223372036854775807) float(9.2233720368548E+18)