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<?php $o = gmp_init(0); var_dump($o); $s = gmp_export($o); var_dump($s); $o2 = gmp_import($s); var_dump($o2);
Output for 8.5.1 - 8.5.11
Fatal error: Uncaught Error: Call to undefined function gmp_init() in /in/ZCBqp:3 Stack trace: #0 {main} thrown in /in/ZCBqp on line 3
Process exited with code 255.
Output for 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0
object(GMP)#1 (1) { ["num"]=> string(1) "0" } string(0) "" object(GMP)#2 (1) { ["num"]=> string(1) "0" }

preferences:
27.05 ms | 1140 KiB | 9 Q