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<?php var_dump("0x15" + 1); //0x16 == 22 var_dump("0x" . dechex(15) + 0); //15 var_dump(("0x" . dechex(15)) + 1); //16
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
Warning: A non-numeric value encountered in /in/3iUHo on line 2 int(1) Fatal error: Uncaught TypeError: Unsupported operand types: string + int in /in/3iUHo:3 Stack trace: #0 {main} thrown in /in/3iUHo on line 3
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Deprecated: The behavior of unparenthesized expressions containing both '.' and '+'/'-' will change in PHP 8: '+'/'-' will take a higher precedence in /in/3iUHo on line 3 Notice: A non well formed numeric value encountered in /in/3iUHo on line 2 int(1) Notice: A non well formed numeric value encountered in /in/3iUHo on line 3 int(0) Notice: A non well formed numeric value encountered in /in/3iUHo on line 4 int(1)
Output for 7.0.0 - 7.0.32, 7.3.32 - 7.3.33
int(1) int(0) int(1)
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31
Notice: A non well formed numeric value encountered in /in/3iUHo on line 2 int(1) Notice: A non well formed numeric value encountered in /in/3iUHo on line 3 int(0) Notice: A non well formed numeric value encountered in /in/3iUHo on line 4 int(1)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.1 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
int(22) int(15) int(16)
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/3iUHo on line 4
Process exited with code 255.

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