hateka https://blog.hatena.ne.jp/hateka/ hateka’s blog https://hateka.hateblo.jp/ php I found what is mystery action of php. look this program, <?php class Test { var $a = "uho"; function a() { $this->a = "a"; return $this->a; } function b() { $b = $this->a; var_dump($b); } } $w = new Test(); $w->b(); ?> 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhateka.hateblo.jp%2Fentry%2F20090925%2F1253895760" title="Mystery action of php - hateka’s blog" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2009-09-25 01:22:40 rich https://hateka.hateblo.jp/entry/20090925/1253895760 1.0 100%