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<?php $xd = new DateTime(); $x = gmp_add(10, 20); var_dump($$xd + $x);
based on jrQh8
Output for 7.1.0 - 7.2.0
Recoverable fatal error: Object of class DateTime could not be converted to string in /in/7gO81 on line 6
Process exited with code 255.
Output for 5.4.11 - 5.5.34, 5.6.8 - 5.6.20, 5.6.28 - 7.0.5, 7.0.20
Catchable fatal error: Object of class DateTime could not be converted to string in /in/7gO81 on line 6
Process exited with code 255.
Output for 7.0.6
Fatal error: Uncaught Error: Call to undefined function gmp_add() in /in/7gO81:4 Stack trace: #0 {main} thrown in /in/7gO81 on line 4
Process exited with code 255.
Output for 5.3.21 - 5.3.29, 5.5.35, 5.6.21
Fatal error: Call to undefined function gmp_add() in /in/7gO81 on line 4
Process exited with code 255.