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<?php $test = 1; $$test = 2; ${'t e s t'} = 3; var_dump($test, $$test, ${'t e s t'}); $test = 4; var_dump($$test);
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
int(1) int(2) int(3) Warning: Undefined variable $4 in /in/pl2uZ on line 7 NULL
Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
int(1) int(2) int(3) Notice: Undefined variable: 4 in /in/pl2uZ on line 7 NULL
Output for 7.3.32 - 7.3.33, 7.4.26
int(1) int(2) int(3) NULL
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
int(1) int(2) int(3) Notice: Undefined variable: 4 in /in/pl2uZ on line 7 NULL
preferences:
269.24 ms | 402 KiB | 348 Q