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<?php echo '---- INTMAX vs INTMAX+1'. \PHP_EOL; var_dump(\PHP_INT_MAX); var_dump(\PHP_INT_MAX+1); echo '---- INTMAX to float and back'. \PHP_EOL; var_dump(\intval((float)\PHP_INT_MAX)); var_dump((int)((float)\PHP_INT_MAX)); echo '---- INTMAX+1 to float and back'. \PHP_EOL; var_dump(\intval(\PHP_INT_MAX+1)); var_dump((int)(\PHP_INT_MAX+1)); var_dump(\PHP_INT_MIN); echo '---- ...rendezvous point exists...'. \PHP_EOL; var_dump(\intval(18446744073709551615));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
---- INTMAX vs INTMAX+1 int(9223372036854775807) float(9.223372036854776E+18) ---- INTMAX to float and back int(-9223372036854775808) int(-9223372036854775808) ---- INTMAX+1 to float and back int(-9223372036854775808) int(-9223372036854775808) int(-9223372036854775808) ---- ...rendezvous point exists... int(0)
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
---- INTMAX vs INTMAX+1 int(9223372036854775807) float(9.2233720368548E+18) ---- INTMAX to float and back int(-9223372036854775808) int(-9223372036854775808) ---- INTMAX+1 to float and back int(-9223372036854775808) int(-9223372036854775808) int(-9223372036854775808) ---- ...rendezvous point exists... int(0)

preferences:
168.93 ms | 402 KiB | 176 Q