3v4l.org

run code in 300+ PHP versions simultaneously
<?php function gen1() { yield 1; return 42; yield 2; } $g = gen1(); // foreach($g as $val1) { // var_dump($val1); // } var_dump($g->current()); // var_dump($g->valid()); var_dump($g->getReturn());
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, 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) Fatal error: Uncaught Exception: Cannot get return value of a generator that hasn't returned in /in/BiEgE:15 Stack trace: #0 /in/BiEgE(15): Generator->getReturn() #1 {main} thrown in /in/BiEgE on line 15
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Generators cannot return values using "return" in /in/BiEgE on line 5
Process exited with code 255.
Output for 5.4.2 - 5.4.45
Parse error: syntax error, unexpected '1' (T_LNUMBER) in /in/BiEgE on line 4
Process exited with code 255.

preferences:
248.18 ms | 401 KiB | 256 Q