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<?php var_dump(sin('15')); @var_dump(sin('0xF')); var_dump(round('15')); var_dump(round('0xF')); ?>
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
float(0.6502878401571168) Fatal error: Uncaught TypeError: sin(): Argument #1 ($num) must be of type float, string given in /in/K3KW8:3 Stack trace: #0 /in/K3KW8(3): sin('0xF') #1 {main} thrown in /in/K3KW8 on line 3
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
float(0.65028784015712) float(0) float(15) float(0)
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
float(0.65028784015712) float(0.65028784015712) float(15) float(15)

preferences:
202.87 ms | 401 KiB | 224 Q