3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function gen() { echo "yielding\n"; yield 24; echo "yielding again\n"; yield 33; echo "returning\n"; return 42; } $g = gen(); var_dump($g->valid()); var_dump($g->key()); var_dump($g->current()); $g->next(); var_dump($g->valid()); var_dump($g->key()); var_dump($g->current()); $g->next(); var_dump($g->valid()); var_dump($g->key()); var_dump($g->current()); $g->next(); var_dump($g->valid()); var_dump($g->key()); var_dump($g->current());
based on nI6ho
Output for 7.0.0 - 7.2.0
yielding bool(true) int(0) int(24) yielding again bool(true) int(1) int(33) returning bool(false) NULL NULL bool(false) NULL NULL
Output for 5.5.0 - 5.6.28
Fatal error: Generators cannot return values using "return" in /in/Ano1T on line 9
Process exited with code 255.
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '24' (T_LNUMBER) in /in/Ano1T on line 5
Process exited with code 255.