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<?php function coalesce() { foreach (func_get_args() as $arg) { if (null != $arg) { return $arg; } } return null; } var_dump(coalesce($foo['bar']['bar'], 1, null));
Output for git.master, git.master_jit
Warning: Undefined variable $foo in /in/Lca6a on line 12 Warning: Trying to access array offset on value of type null in /in/Lca6a on line 12 Warning: Trying to access array offset on value of type null in /in/Lca6a on line 12 int(1)
Output for rfc.property-hooks
Warning: Undefined variable $foo in /in/Lca6a on line 12 Warning: Trying to access array offset on null in /in/Lca6a on line 12 Warning: Trying to access array offset on null in /in/Lca6a on line 12 int(1)

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