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                ~~~ /** * ------------------------------------------------------------------- * 密碼散列算法 (php5.5以上) * ------------------------------------------------------------------- * password_get_info — 返回指定散列(hash)的相關信息 * password_hash — 創建密碼的散列(hash) * password_needs_rehash — 檢測散列值是否匹配指定的選項 * password_verify — 驗證密碼是否和散列值匹配 * ------------------------------------------------------------------- */ $password = 'chen123'; $hash = '$2y$11$Ry480VkhNbkEbjbYELr.dez3inCErJgMmxlZXoYxf9U.q0mR9E.Za'; // 當硬件性能得到改善時,cost 參數可以再修改 $options = array('cost' => 11); $newHash = password_hash($password, PASSWORD_DEFAULT, $options); // 根據明文密碼驗證儲存的散列 if (password_verify($password, $hash)) { // 檢測是否有更新的可用散列算法 // 或者 cost 發生變化 if (password_needs_rehash($hash, PASSWORD_DEFAULT, $options)) { // 如果是這樣,則創建新散列,替換舊散列 $newHash = password_hash($password, PASSWORD_DEFAULT, $options); die ('新散列值:' . $newHash); } else { die ('散列值未更新!'); } // 使用戶登錄 } else { die ('賬號或密碼不正確!'); } ~~~
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