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<?php $x = function(){}; $y = function($x){echo 'foo';}; $y = function($x){echo 'bar';}; var_dump(array_search(function($x){echo 'foo';}, array($x,$y,$z)));
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $z in /in/117Tl on line 7 bool(false)

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