一次簡單的資料庫追溯

引子.今天排查程式碼,一路飛,到資料庫,

<span>1</span><span>$this->slave()->select('sina_user_id, sina_nickname, password')->from(self::Table_User_Info)</span>

顯然到這裡確定了表.user_info;

這個檔案沒有load->database();

顧名: slave() ,追溯slave() 果然在這裡組合了函式庫名字串,

<span>1</span><span>    public function slave($dbName = 'default')
</span><span>2</span>     { 
<span>3</span>     }

func 裡面load->database();

查loader裡的database();有下面這句話,

<span>1</span><span><strong>require</strong>_once(BASEPATH.'database/DB.php');</span>

查DB.php;

<span>1</span><span>    if ( ! defined('ENVIRONMENT') OR ! file_exists($file_path = BASEPATH.'config/'.ENVIRONMENT.'/database.php'))</span>

這個檔案裡面多個資料庫屬性的引入,詳見核心檔案分析.

終於找到了database.php 位置

<span> 1</span><span>// Default DB Config
</span><span> 2</span><span>$db['default_master']['hostname'] = 'localhost';
</span><span> 3</span><span>$db['default_master']['username'] = 'admin';
</span><span> 4</span><span>$db['default_master']['password'] = '12345678';
</span><span> 5</span><span>$db['default_master']['database'] = ' ';
</span><span> 6</span><span>$db['default_master']['port'] = 3306;
</span><span> 7</span><span>$db['default_master']['dbdriver'] = 'mysql';
</span><span> 8</span><span>$db['default_master']['pconnect'] = FALSE;
</span><span> 9</span><span>$db['default_master']['db_debug'] = TRUE;
</span><span>10</span><span>$db['default_master']['cache_on'] = FALSE;
</span><span>11</span><span>$db['default_master']['cachedir'] = '';
</span><span>12</span><span>$db['default_master']['char_set'] = 'utf8';
</span><span>13</span><span>$db['default_master']['dbcollat'] = 'utf8_general_ci';
</span><span>14</span><span>$db['default_master']['swap_pre'] = '';
</span><span>15</span><span>$db['default_master']['autoinit'] = TRUE;
</span><span>16</span><span>$db['default_master']['stricton'] = FALSE;</span>

以上就介紹了一次簡單的資料庫追溯，包括了require方面的內容，希望對PHP教程有興趣的朋友有幫助。