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<?php $a = (int) INF; $n = (int) pow(2.,64.); echo $a - ($n * (int) ($a/$n) ),"\n"; // INF but s/b NAN echo fmod(INF,pow(2,64)),"\n"; // NAN correct!
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught DivisionByZeroError: Division by zero in /in/RrOCU:5 Stack trace: #0 {main} thrown in /in/RrOCU on line 5
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
Warning: Division by zero in /in/RrOCU on line 5 0 NAN
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Warning: Division by zero in /in/RrOCU on line 5 -9223372036854775808 NAN

preferences:
140.97 ms | 402 KiB | 183 Q