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<?php $v = 'init value';// あらかじめ外で変数を用意して $fn = function() use ($v) {// use することでクロージャ内で使えるようにすると if (false) { static $v = 'changed value';// ここの変数宣言が何故か有効になって $v の値が書き換わる static $z = 'undefined';// こっちはちゃんと無効化されて、$zは未定義変数のまま echo 'ここは走らない'; } echo ' $v: '.$v ."\n"; echo 'isset($z): '. var_export(isset($z), true) ."\n"; }; $fn();
Output for git.master, git.master_jit
$v: init value isset($z): false
Output for rfc.property-hooks
Fatal error: Duplicate declaration of static variable $v in /in/7ELQZ on line 5
Process exited with code 255.

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