MDB2_BufferedResult_mysql Class Reference

Inheritance diagram for MDB2_BufferedResult_mysql:

Collaboration diagram for MDB2_BufferedResult_mysql:

Public Member Functions
	seek ($rownum=0)
	Seek to a specific row in a result set.
	valid ()
	Check if the end of the result set has been reached.
	numRows ()
	Returns the number of rows in a result object.
Public Member Functions inherited from MDB2_Result_mysql
&	fetchRow ($fetchmode=MDB2_FETCHMODE_DEFAULT, $rownum=null)
	Fetch a row and insert the data into an existing array.
	_getColumnNames ()
	Retrieve the names of columns returned by the DBMS in a query result.
	numCols ()
	Count the number of columns returned by the DBMS in a query result.
	free ()
	Free the internal resources associated with result.
Public Member Functions inherited from MDB2_Result_Common
	__construct (&$db, &$result, $limit=0, $offset=0)
	Constructor.
	MDB2_Result_Common (&$db, &$result, $limit=0, $offset=0)
	PHP 4 Constructor.
	setResultTypes ($types)
	Define the list of types to be associated with the columns of a given result set.
	fetchOne ($colnum=0, $rownum=null)
	fetch single column from the next row from a result set
	fetchCol ($colnum=0)
	Fetch and return a column from the current row pointer position.
	fetchAll ($fetchmode=MDB2_FETCHMODE_DEFAULT, $rekey=false, $force_array=false, $group=false)
	Fetch and return all rows from the current row pointer position.
	rowCount ()
	Returns the actual row number that was last fetched (count from 0)
	nextResult ()
	Move the internal result pointer to the next available result.
	getColumnNames ($flip=false)
	Retrieve the names of columns returned by the DBMS in a query result or from the cache.
	getResource ()
	return the resource associated with the result object
	bindColumn ($column, &$value, $type=null)
	Set bind variable to a column.
	_assignBindColumns ($row)
	Bind a variable to a value in the result row.

Additional Inherited Members
Data Fields inherited from MDB2_Result_Common
	$db
	$result
	$rownum = -1
	$types = array()
	$values = array()
	$offset
	$offset_count = 0
	$limit
	$column_names

Detailed Description

Definition at line 1284 of file mysql.php.

Member Function Documentation

MDB2_BufferedResult_mysql::numRows

(

)

Returns the number of rows in a result object.

Returns

mixed MDB2 Error Object or the number of rows public

Reimplemented from MDB2_Result_Common.

Definition at line 1339 of file mysql.php.

References elseif(), and MDB2_ERROR_NEED_MORE_DATA.

Referenced by valid().

    {
        $rows = @mysql_num_rows($this->result);
        if (is_null($rows)) {
            if ($this->result === false) {
                return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
                    'resultset has already been freed', __FUNCTION__);
            } elseif (is_null($this->result)) {
                return 0;
            }
            return $this->db->raiseError(null, null, null,
                'Could not get row count', __FUNCTION__);
        }
        return $rows;
    }

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MDB2_BufferedResult_mysql::seek

(

$rownum = 0

)

Seek to a specific row in a result set.

Parameters

int

$rownum

number of the row where the data can be found

Returns

mixed MDB2_OK on success, a MDB2 error on failure public

Reimplemented from MDB2_Result_Common.

Definition at line 1296 of file mysql.php.

References MDB2_Result_Common\$rownum, elseif(), MDB2_ERROR_INVALID, MDB2_ERROR_NEED_MORE_DATA, and MDB2_OK.

    {
        if ($this->rownum != ($rownum - 1) && !@mysql_data_seek($this->result, $rownum)) {
            if ($this->result === false) {
                return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
                    'resultset has already been freed', __FUNCTION__);
            } elseif (is_null($this->result)) {
                return MDB2_OK;
            }
            return $this->db->raiseError(MDB2_ERROR_INVALID, null, null,
                'tried to seek to an invalid row number ('.$rownum.')', __FUNCTION__);
        }
        $this->rownum = $rownum - 1;
        return MDB2_OK;
    }

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MDB2_BufferedResult_mysql::valid

(

)

Check if the end of the result set has been reached.

Returns

mixed true or false on sucess, a MDB2 error on failure public

Definition at line 1321 of file mysql.php.

References PEAR\isError(), and numRows().

    {
        $numrows = $this->numRows();
        if (PEAR::isError($numrows)) {
            return $numrows;
        }
        return $this->rownum < ($numrows - 1);
    }

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The documentation for this class was generated from the following file:

• Services/PEAR/lib/MDB2/Driver/mysql.php