Zend Framework Database Summary [Original]_php tutorial

zend_db Database Knowledge
Example:
Model file:
$this->fetchall ("Is_jian=1", "id DESC", 0,2)->toarray ();//According to Is_jian=1, the first 2 records are sorted in reverse order The ASC is ordered directly by the reverse ID.
Routing files:
$video =new Video ();//Instantiate the database class
$this->view->get2video = $video->get2video ();//Fetch to 2 home recommended data
index.phtml file:
Get2video as $video):?>



Add quotation marks to prevent database attacks
Quote Usage
$value = $db->quote (St John "s wort);
$value now becomes "St John" s Wort (note the quotes on both sides)
Array quotation marks
$value = $db->quote (Array (A, B, c));
$value now becomes "a", "B", "C" ("," delimited string)
Quoteinto usage
echo $where = $db->quoteinto (id =?, 1);
$where now for id = "1" (note the quotation marks on both sides)
To enclose an array in a where statement
$where = $db->quoteinto (id in (?), Array (1, 2, 3));
$where now ID in ("1", "2", "3") (a comma-delimited string)
(1) Data Query Summary
directly to the query. (using the full SQL statement)
function Quoteinto ($text, $value, $type = null, $count = NULL)
$db = $this->getadapter ();
$sql = $db->quoteinto (SELECT * from ' m_video ' WHERE ' is_guo ' =?, 1);
$result = $db->query ($sql);
Use the Pdostatement object $result to put all the result data into an array
$videoArray = $result->fetchall ();
Fetchall usage
Fetchall ($where = null, $order = NULL, $count = NULL, $offset = NULL)
Retrieves the values of all fields in the result set, returns as a continuous array, and writes NULL if the parameter is not set
You can retrieve the specified number of bars for the result set
$videoArray = $this->fetchall ("Is_jian=1 and Is_guo=1", "id DESC", 0,2)->toarray ();

FETCHASSOC usage
Fetchassoc ($sql, $bind = Array ())
Retrieves the values of all fields in the result set, returns as an associative array, and the first field as a code
$db = $this->getadapter ();
$videoArray = $db->FETCHASSOC ("select * from M_video WHERE ' Is_jian ' =: title", Array (title = 1));

Fetchcol usage
Fetchcol ($sql, $bind = Array ())
Retrieve the first field name of all result rows
$db = $this->getadapter ();
$videoArray = $db->fetchcol ("Select name from M_video WHERE ' Is_jian ' =: title", Array (title = 1));

Fetchone usage
Fetchone ($sql, $bind = Array ())
Retrieve only the first field value
$db = $this->getadapter ();
echo $videoArray = $db->fetchone ("SELECT count (*) from M_video WHERE ' Is_jian ' =: title", Array (title = 1));

Fetchpairs usage
Fetchpairs ($sql, $bind = Array ())
Retrieve a related array, the first field value is a code (ID), the second field is a value (name)
Returns: Array ([1] = 12 Zodiac [2] = Peach blossom), 1, 2: ID field.
$db = $this->getadapter ();
$videoArray = $db->fetchpairs ("Select ID, name from m_video WHERE Is_jian =: title", Array (title = 1));

Fetchrow Usage
Fetchrow ($where = null, $order = NULL)
Retrieve only the first row of the result set
$videoArray = $this->fetchrow ("Is_jian=1 and is_guo=1", id DESC)->toarray ();
Query usage
function query ($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 (12 Zodiac, 1));
$result->setfetchmode (zend_db::fetch_obj);//fetch_obj is the default value, Fetch_num,fetch_both
while ($row = $result->fetch ()) {
echo $row [name];
//}
$rows = $result->fetch ();
$rows = $result->fetchall ();
$obj = $result->fetchobject ();//echo $obj->name;
echo $Column = $result->fetchcolumn (0);//Get the first field of the result set, such as 0 for the ID number, for the case of a single field
Print_r ($rows);
Select usage
$db = $this->getadapter ();
$select = $db->select ();
$select->from (M_video, Array (id,name,clicks))
->where (Is_guo =: Is_guo and name =: name)
->order (name)//What sort sequence to participate in an array (multiple fields) or a string (a field)
->group ()//Grouping
->having ()//conditions for packet query data
->DISTINCT ()//no parameter, remove the duplicate value. Sometimes the same result as GroupBy returns
->limit (10);
//Read results using binding parameters
$params = Array (Is_guo = 1,name=> 12 zodiac);
$sql = $select->__tostring ();//Get query statement, available for debugging
$result = $db->fetchall ($select, $params);
Query to execute SELECT
$stmt = $db->query ($select);

$result = $stmt->fetchall ();
or with
$stmt = $select->query ();
$result = $stmt->fetchall ();
If you directly use
$db->fetchall ($select) as a result
Multi-table Federated query usage
$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);//multi-table union query
$videoArray = $db->fetchall ($select, $params);
Find () method, you can use the primary key value to retrieve data in the table.
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));

(2) Data deletion summary
The first method: You can delete any table
//quoteinto ($text, $value, $type = null, $count = null)
$table = m_ video;//set the table that needs to delete data
$db = $this->getadapter ();
$where = $db->quoteinto (name =?, CCC);//The Where condition statement that deletes the data
echo $rows _affected = $db->delete ($table, $where);//delete The number of rows that are affected by the data
The second method: You can only delete
//delete usage in this table
//delete ($where)
$where = "name = BBB";
echo $this->delete ($where)///delete data and get affected by the number of rows
(3) Data Update summary
The first method: You can update any table
//with "column name" and "Data" Format to update the array, update the data row
$table = m_video;//Updated data table
$db = $this->getadapter ();
$set = Array (
name = Shadow Heavy,
clicks = 888,
);
$where = $db->quoteinto (id =?, ten);//WHERE statement
//Update table data, returns the number of updated rows
echo $rows _affected = $db->update ($table, $se T, $where);

The second method: You can only update
$set = array in this table (
Name + butterfly shadow,
clicks = 8880,
);
$db = $this->getadapter ();
$where = $db->quoteinto (id =?, ten);//Where statement
$rows _affected = $this->update ($set, $where);//Update table data, Returns the number of rows updated
(4) Data Insertion summary
The first way: You can insert data into any table
$table = m_gao;//data table for inserting data
$db = $this->getadapter ();
Construct the insert array in the format format "column name" and "data", insert the data row
$row = Array (
title = = Everyone. 111,
CONTENT = TV network to be changed to use Zend Framework development Ah,
time = 2009-05-04 17:23:36,
);
Inserts a data row and returns the number of rows inserted
$rows _affected = $db->insert ($table, $

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