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                # db\_update() ## db\_update() ``` <pre class="calibre11">``` db_update($table, $cond, $update, $d = NULL) ``` ``` #### 【功能】 更新記錄,成功返回受影響的行數,失敗返回 FALSE。 #### 【參數】 ``` <pre class="calibre11">``` $table:表名 $cond:條件 $update: 更新的數據 $d:$db 實例 ``` ``` #### 【$cond】 條件數組的格式: ``` <pre class="calibre11">``` // 單個條件: array('gid'=>1) // 多條: array('gid'=>1, 'uid'=>3) // 大于 array('create_date'=>array('>'=>100)) // 小于 array('create_date'=>array('<'=>1000)) // LIKE array('subject'=>array('LIKE'=>'關鍵字')) // 組合: array('gid'=>1, 'create_date'=>array('>'=>100, '<'=>1000)) ``` ``` #### 【用例】 ``` <pre class="calibre11">``` <?php $conf = include './conf.php'; include './xiunophp/xiunophp.php'; // 將 uid=123 所在的行的 username 字段值更新為 Mike $r = db_update('user', array('uid'=>123), array('username'=>'Mike')); if($r === FALSE) { echo $errstr; } else { echo "更新成功"; } ?> ``` ```
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