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<?php function f($x) { unset($x); eval('var_dump(debug_backtrace());'); } f(10);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> array(3) { ["file"]=> string(9) "/in/0thhK" ["line"]=> int(5) ["function"]=> string(4) "eval" } [1]=> array(4) { ["file"]=> string(9) "/in/0thhK" ["line"]=> int(8) ["function"]=> string(1) "f" ["args"]=> array(1) { [0]=> NULL } } }

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