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<?php function gen(): Generator { yield 1; var_dump(debug_backtrace()); } for ($gen = gen(); $gen->valid(); $gen->next()) { $gen->current(); }
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> array(2) { ["function"]=> string(3) "gen" ["args"]=> array(0) { } } [1]=> array(7) { ["file"]=> string(9) "/in/XOgoU" ["line"]=> int(10) ["function"]=> string(4) "next" ["class"]=> string(9) "Generator" ["object"]=> object(Generator)#1 (0) { } ["type"]=> string(2) "->" ["args"]=> array(0) { } } }

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