{"author_url":"https://blog.hatena.ne.jp/ThisIsOne/","categories":["Web Security Academy","Business logic"],"provider_url":"https://hatena.blog","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fcysec148.hatenablog.com%2Fentry%2F2025%2F05%2F27%2F170145\" title=\"\u60f3\u5b9a\u5916\u306e\u5165\u529b\u5024\u3092\u51e6\u7406\u3067\u304d\u306a\u3044\u8106\u5f31\u6027 \u2015 \u8ca0\u306e\u6570\u3084\u6975\u7aef\u306a\u5024\u304c\u3082\u305f\u3089\u3059\u8a2d\u8a08\u5d29\u58ca - Shikata Ga Nai\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","blog_title":"Shikata Ga Nai","width":"100%","url":"https://cysec148.hatenablog.com/entry/2025/05/27/170145","image_url":null,"version":"1.0","author_name":"ThisIsOne","description":"Hello there, ('\u03c9')\u30ce \u2705 \u8106\u5f31\u6027\u306e\u6982\u8981 \u591a\u304f\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u753b\u9762\u4e0a\u3067\u306f\u6b63\u5e38\u306a\u5165\u529b\u5024\u3057\u304b\u60f3\u5b9a\u3057\u3066\u304a\u3089\u305a\u3001 \u7570\u5e38\u306a\u5165\u529b\u5024\uff08\u8ca0\u306e\u6570\u3001\u7570\u5e38\u306b\u5927\u304d\u306a\u5024\u3001\u6841\u5916\u308c\u306a\u6587\u5b57\u5217\u306a\u3069\uff09\u3078\u306e\u5bfe\u51e6\u3092\u5fd8\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002 \ud83d\udca3 \u5178\u578b\u7684\u306a\u8a2d\u8a08\u30df\u30b9\u306e\u4f8b\uff1a\u9001\u91d1\u51e6\u7406 \u4ee5\u4e0b\u306f\u3001\u9001\u91d1\u51e6\u7406\u306e\u7c21\u7565\u5316\u3055\u308c\u305f\u30b3\u30fc\u30c9\u3067\u3059\uff1a $transferAmount = $_POST['amount']; $currentBalance = $user->getBalance(); if ($transferAmount <= $currentBalance) { // \u9001\u91d1\u3092\u5b9f\u884c } else { // \u6b8b\u9ad8\u4e0d\u8db3\u3067\u30d6\u30ed\u30c3\u30af \u2026","title":"\u60f3\u5b9a\u5916\u306e\u5165\u529b\u5024\u3092\u51e6\u7406\u3067\u304d\u306a\u3044\u8106\u5f31\u6027 \u2015 \u8ca0\u306e\u6570\u3084\u6975\u7aef\u306a\u5024\u304c\u3082\u305f\u3089\u3059\u8a2d\u8a08\u5d29\u58ca","published":"2025-05-27 17:01:45","blog_url":"https://cysec148.hatenablog.com/","height":"190"}