PHP应用：Zend Framework数据库操作技巧总结

PHP实战
$this->fetchAll("is_jian=1","id DESC",0,2)->toArray();
//根据is_jian=1,按id倒序排列取前2条记录当第一个参数为null时,则直接按id倒序排列ASC为正序.

PHP实战
$video=new Video();//实例化数据库类
$this->view->get2Video =$video->get2Video();//取到2条首页推荐的数据

PHP实战
<?php foreach ($this->get2Video as $video): ?>
<?=$video['id']; ?>
<?=$video['name']; ?>
<? endforeach; ?>

PHP实战
$value = $db->quote('St John"s Wort');
// $value 现在变成了 '"St John\"s Wort"' (注意两边的引号)
// 为数组加引号
$value = $db->quote(array('a', 'b', 'c'));
// $value 现在变成了 '"a", "b", "c"' (","分隔的字符串)

PHP实战
echo $where = $db->quoteInto('id = ?', 1);
// $where 现在为 'id = "1"' (注意两边的引号)
// 在where语句中为数组加上引号
$where = $db->quoteInto('id IN(?)', array(1, 2, 3));
// $where 现在为 'id IN("1", "2", "3")' (一个逗号分隔的字符串)

PHP实战
//function quoteInto($text, $value, $type = null, $count = null)
$db = $this->getAdapter();
$sql = $db->quoteInto('SELECT * FROM `m_video` WHERE `is_guo` =?', '1');
$result = $db->query($sql);
// 使用PDOStatement对象$result将所有结果数据放到一个数组中
$videoArray = $result->fetchAll();

PHP实战
$videoArray=$this->fetchAll("is_jian=1 and is_guo=1","id DESC",0,2)->toArray();

PHP实战
$db = $this->getAdapter();
$videoArray=$db->fetchAssoc("SELECT * FROM m_video WHERE `is_jian` = :title",array('title' => '1'));

PHP实战
$db = $this->getAdapter();
$videoArray=$db->fetchCol("SELECT name FROM m_video WHERE `is_jian` = :title",array('title' => '1'));

PHP实战
$db = $this->getAdapter();
echo $videoArray=$db->fetchOne("SELECT count(*) FROM m_video WHERE `is_jian` = :title",array('title' => '1'));

PHP实战
$db = $this->getAdapter();
$videoArray=$db->fetchPairs("SELECT id, name FROM m_video WHERE is_jian = :title",array('title' => '1'));

PHP实战
$videoArray=$this->fetchRow("is_jian=1 and is_guo=1", 'id DESC')->toArray();

PHP实战
//function query($sql, $bind = array())
$db = $this->getAdapter();
$result = $db->query('SELECT * FROM `m_video`');
//$result = $db->query('SELECT * FROM `m_video` WHERE `name` = ? AND id = ?',array('十二生肖奇缘', '1'));
//$result->setFetchMode(Zend_Db::FETCH_OBJ);//FETCH_OBJ为默认值,FETCH_NUM,FETCH_BOTH
//while ($row = $result->fetch()) {
//  echo $row['name'];
//}
//$rows = $result->fetch();
//$rows = $result->fetchAll();
//$obj = $result->fetchObject();//echo $obj->name;
// echo $Column = $result->fetchColumn(0);//得到结果集的第一个字段,比如0为id号,用于只取一个字段的情况
print_r($rows);

PHP实战
$db = $this->getAdapter();
$select = $db->select();
$select->from('m_video', array('id','name','clicks'))
->where('is_guo = :is_guo and name = :name')
->order('name')// 按什么排序列,参加为数组(多个字段)或字符串(一个字段)
->group()//分组
->having()//分组查询数据的条件
->distinct()// 无参数,去掉重复的值.有时候与groupby返回的结果一样
->limit(10);
// 读取结果使用绑定的参数
$params = array('is_guo' => '1','name'=>'十二生肖奇缘');
//$sql = $select->__toString();//得到查询语句,可供调试
$result = $db->fetchAll($select,$params);
执行select的查询
$stmt = $db->query($select);
$result = $stmt->fetchAll();

PHP实战
$stmt = $select->query();
$result = $stmt->fetchAll();

PHP实战
$db->fetchAll($select)

PHP实战
$db = $this->getAdapter();
$select = $db->select();
$select->from('m_video', array('id','name','pic','actor','type_id','up_time'))
->where('is_guo = :is_guo and is_jian = :is_jian')
->order('up_time')
->limit(2);
$params = array('is_guo' => '1','is_jian'=>'1');
$select->join('m_type', 'm_video.type_id = m_type.t_id', 'type_name');//多表联合查询
$videoArray = $db->fetchAll($select,$params);

PHP实战
// SELECT * FROM round_table WHERE id = "1"
$row = $table->find(1);
// SELECT * FROM round_table WHERE id IN("1", "2", 3")
$rowset = $table->find(array(1, 2, 3));

PHP实战
//quoteInto($text, $value, $type = null, $count = null)
$table = 'm_video';// 设定需要删除数据的表
$db = $this->getAdapter();
$where = $db->quoteInto('name = ?', 'ccc');// 删除数据的where条件语句
echo $rows_affected = $db->delete($table, $where);// 删除数据并得到影响的行数

PHP实战
//delete用法
// delete($where)
$where = "name = 'bbb'";
echo $this->delete($where);// 删除数据并得到影响的行数

PHP实战
// 以"列名"=>"数据"的格式构造更新数组,更新数据行
$table = 'm_video';// 更新的数据表
$db = $this->getAdapter();
$set = array (
'name' => '蝶影重重',
'clicks' => '888',
);
$where = $db->quoteInto('id = ?', '10');// where语句
// 更新表数据,返回更新的行数
echo $rows_affected = $db->update($table, $set, $where);

PHP实战
$set = array (
'name' => '蝶影重重22',
'clicks' => '8880',
);
$db = $this->getAdapter();
$where = $db->quoteInto('id = ?', '10');// where语句
$rows_affected = $this->update($set, $where);// 更新表数据,返回更新的行数

PHP实战
$table = 'm_gao';// 插入数据的数据表
$db = $this->getAdapter();
// 以"列名"=>"数据"的格式格式构造插入数组,插入数据行
$row = array (
'title'   => '大家好.111',
'content' => '影视网要改成用zend framework开发啊',
'time' => '2009-05-04 17:23:36',
);
// 插入数据行并返回插入的行数
$rows_affected = $db->insert($table, $row);
// 最后插入的数据id
echo $last_insert_id = $db->lastInsertId();
$row=array(
'name'=>'curdate()',
'address' => new Zend_Db_Expr ('curdate()')
)

PHP实战
$table = 'm_gao';// 插入数据的数据表
$db = $this->getAdapter();
$db->beginTransaction();//Zend_Db_Adapter会回到自动commit模式下,直到你再次调用 beginTransaction()方法
// 以"列名"=>"数据"的格式格式构造插入数组,插入数据行
$row = array (
'id'=>null,
'title'   => '大家好.111',
'content' => '影视网要改成用zend framework开发啊',
'time' => '2009-05-04 17:23:36',
);
try {
// 插入数据行并返回插入的行数
$rows_affected = $db->insert($table, $row);
// 最后插入的数据id
$last_insert_id = $db->lastInsertId();
$db->commit();// 事务提交
}catch (Exception $e){
$db->rollBack();
echo '捕获异常：'.$e->getMessage();//打出异常信息
}
echo $last_insert_id;

PHP实战
$db = $this->getAdapter();
$tables = $db->listTables(); //列出当前数据库中的所有表
$fields = $db->describeTable('m_video');//列出一个表的字段情况