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<?php function f() { var_dump(debug_backtrace()); } f(); ?>
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { [0]=> array(4) { ["file"]=> string(9) "/in/eOi7a" ["line"]=> int(7) ["function"]=> string(1) "f" ["args"]=> array(0) { } } }

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