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<?php function a(){var_dump(debug_backtrace());}; function b(){a();}; function c(){b();}; c();
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { [0]=> array(4) { ["file"]=> string(9) "/in/7OpcJ" ["line"]=> int(3) ["function"]=> string(1) "a" ["args"]=> array(0) { } } [1]=> array(4) { ["file"]=> string(9) "/in/7OpcJ" ["line"]=> int(4) ["function"]=> string(1) "b" ["args"]=> array(0) { } } [2]=> array(4) { ["file"]=> string(9) "/in/7OpcJ" ["line"]=> int(8) ["function"]=> string(1) "c" ["args"]=> array(0) { } } }

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