extended.php

This is the script which used on 10minutemail.com for temporary email.

        $result = $stmt->execute($params);
        if (!MDB2::isResultCommon($result)) {
            return $result;
        }

        $one = $result->fetchOne($colnum);
        $stmt->free();
        $result->free();
        return $one;
    }
    // }}}

    // {{{ getRow()

    /**
     * Fetch the first row of data returned from a query.  Takes care
     * of doing the query and freeing the results when finished.
     *
     * @param string the SQL query
     * @param array that contains the types of the columns in the result set
     * @param array if supplied, prepare/execute will be used
     *       with this array as execute parameters
     * @param array that contains the types of the values defined in $params
     * @param int the fetch mode to use
     *
     * @return array|MDB2_Error data on success, a MDB2 error on failure
     * @access public
     */
    function getRow($query, $types = null, $params = array(),
        $param_types = null, $fetchmode = MDB2_FETCHMODE_DEFAULT)
    {
        $db =& $this->getDBInstance();
        if (PEAR::isError($db)) {
            return $db;
        }

        settype($params, 'array');
        if (empty($params)) {
            return $db->queryRow($query, $types, $fetchmode);
        }

        $stmt = $db->prepare($query, $param_types, $types);
        if (PEAR::isError($stmt)) {
            return $stmt;
        }

        $result = $stmt->execute($params);
        if (!MDB2::isResultCommon($result)) {
            return $result;
        }

        $row = $result->fetchRow($fetchmode);
        $stmt->free();
        $result->free();
        return $row;
    }
    // }}}

    // {{{ getCol()

    /**
     * Fetch a single column from a result set and return it as an
     * indexed array.
     *
     * @param string the SQL query
     * @param string that contains the type of the column in the result set
     * @param array if supplied, prepare/execute will be used
     *       with this array as execute parameters
     * @param array that contains the types of the values defined in $params
     * @param int|string which column to return
     *
     * @return array|MDB2_Error data on success, a MDB2 error on failure
     * @access public
     */
    function getCol($query, $type = null, $params = array(),
        $param_types = null, $colnum = 0)
    {
        $db =& $this->getDBInstance();
        if (PEAR::isError($db)) {
            return $db;
        }

        settype($params, 'array');
        settype($type, 'array');
        if (empty($params)) {
            return $db->queryCol($query, $type, $colnum);
        }

        $stmt = $db->prepare($query, $param_types, $type);
        if (PEAR::isError($stmt)) {
            return $stmt;
        }

        $result = $stmt->execute($params);
        if (!MDB2::isResultCommon($result)) {
            return $result;
        }

        $col = $result->fetchCol($colnum);
        $stmt->free();
        $result->free();
        return $col;
    }
    // }}}

    // {{{ getAll()

    /**
     * Fetch all the rows returned from a query.
     *
     * @param string the SQL query
     * @param array that contains the types of the columns in the result set
     * @param array if supplied, prepare/execute will be used
     *       with this array as execute parameters
     * @param array that contains the types of the values defined in $params
     * @param int the fetch mode to use
     * @param bool if set to true, the $all will have the first
     *       column as its first dimension
     * @param bool $force_array used only when the query returns exactly
     *       two columns. If true, the values of the returned array will be
     *       one-element arrays instead of scalars.
     * @param bool $group if true, the values of the returned array is
     *       wrapped in another array.  If the same key value (in the first
     *       column) repeats itself, the values will be appended to this array
     *       instead of overwriting the existing values.
     *
     * @return array|MDB2_Error data on success, a MDB2 error on failure
     * @access public
     */
    function getAll($query, $types = null, $params = array(),
        $param_types = null, $fetchmode = MDB2_FETCHMODE_DEFAULT,
        $rekey = false, $force_array = false, $group = false)
    {
        $db =& $this->getDBInstance();
        if (PEAR::isError($db)) {
            return $db;
        }

        settype($params, 'array');
        if (empty($params)) {
            return $db->queryAll($query, $types, $fetchmode, $rekey, $force_array, $group);
        }

        $stmt = $db->prepare($query, $param_types, $types);
        if (PEAR::isError($stmt)) {
            return $stmt;
        }

        $result = $stmt->execute($params);
        if (!MDB2::isResultCommon($result)) {
            return $result;
        }

        $all = $result->fetchAll($fetchmode, $rekey, $force_array, $group);
        $stmt->free();
        $result->free();
        return $all;
    }
    // }}}

    // {{{ getAssoc()

    /**
     * Fetch the entire result set of a query and return it as an
     * associative array using the first column as the key.
     *
     * If the result set contains more than two columns, the value
     * will be an array of the values from column 2-n.  If the result
     * set contains only two columns, the returned value will be a
     * scalar with the value of the second column (unless forced to an
     * array with the $force_array parameter).  A MDB2 error code is
     * returned on errors.  If the result set contains fewer than two
     * columns, a MDB2_ERROR_TRUNCATED error is returned.
     *
     * For example, if the table 'mytable' contains:
     *
     *   ID      TEXT       DATE
     * --------------------------------
     *   1       'one'      944679408
     *   2       'two'      944679408
     *   3       'three'    944679408
     *
     * Then the call getAssoc('SELECT id,text FROM mytable') returns:
     *    array(
     *      '1' => 'one',
     *      '2' => 'two',
     *      '3' => 'three',
     *    )
     *
     * ...while the call getAssoc('SELECT id,text,date FROM mytable') returns:
     *    array(
     *      '1' => array('one', '944679408'),
     *      '2' => array('two', '944679408'),
     *      '3' => array('three', '944679408')
     *    )
     *
     * If the more than one row occurs with the same value in the
     * first column, the last row overwrites all previous ones by
     * default.  Use the $group parameter if you don't want to
     * overwrite like this.  Example:
     *
     * getAssoc('SELECT category,id,name FROM mytable', null, null
     *           MDB2_FETCHMODE_ASSOC, false, true) returns:
     *    array(
     *      '1' => array(array('id' => '4', 'name' => 'number four'),
     *                   array('id' => '6', 'name' => 'number six')
     *             ),
     *      '9' => array(array('id' => '4', 'name' => 'number four'),
     *                   array('id' => '6', 'name' => 'number six')
     *             )
     *    )
     *
     * Keep in mind that database functions in PHP usually return string
     * values for results regardless of the database's internal type.
     *
     * @param string the SQL query
     * @param array that contains the types of the columns in the result set
     * @param array if supplied, prepare/execute will be used
     *       with this array as execute parameters
     * @param array that contains the types of the values defined in $params
     * @param bool $force_array used only when the query returns
     * exactly two columns.  If TRUE, the values of the returned array
     * will be one-element arrays instead of scalars.
     * @param bool $group if TRUE, the values of the returned array
     *       is wrapped in another array.  If the same key value (in the first
     *       column) repeats itself, the values will be appended to this array
     *       instead of overwriting the existing values.
     *
     * @return array|MDB2_Error data on success, a MDB2 error on failure
     * @access public
     */
    function getAssoc($query, $types = null, $params = array(), $param_types = null,
        $fetchmode = MDB2_FETCHMODE_DEFAULT, $force_array = false, $group = false)
    {
        $db =& $this->getDBInstance();
        if (PEAR::isError($db)) {
            return $db;
        }

        settype($params, 'array');
        if (empty($params)) {
            return $db->queryAll($query, $types, $fetchmode, true, $force_array, $group);
        }

        $stmt = $db->prepare($query, $param_types, $types);
        if (PEAR::isError($stmt)) {
            return $stmt;
        }

        $result = $stmt->execute($params);
        if (!MDB2::isResultCommon($result)) {
            return $result;
        }

        $all = $result->fetchAll($fetchmode, true, $force_array, $group);
        $stmt->free();
        $result->free();
        return $all;
    }
    // }}}

    // {{{ executeMultiple()

    /**
     * This function does several execute() calls on the same statement handle.
     * $params must be an array indexed numerically from 0, one execute call is
     * done for every 'row' in the array.
     *
     * If an error occurs during execute(), executeMultiple() does not execute
     * the unfinished rows, but rather returns that error.
     *
     * @param resource query handle from prepare()
     * @param array numeric array containing the data to insert into the query
     *
     * @return bool|MDB2_Error true on success, a MDB2 error on failure
     * @access public
     * @see prepare(), execute()
     */
    function executeMultiple(&$stmt, $params = null)
    {
        for ($i = 0, $j = count($params); $i < $j; $i++) {
            $result = $stmt->execute($params[$i]);
            if (PEAR::isError($result)) {
                return $result;
            }
        }
        return MDB2_OK;
    }
    // }}}

    // {{{ getBeforeID()

    /**
     * Returns the next free id of a sequence if the RDBMS
     * does not support auto increment
     *
     * @param string name of the table into which a new row was inserted
     * @param string name of the field into which a new row was inserted
     * @param bool when true the sequence is automatic created, if it not exists
     * @param bool if the returned value should be quoted
     *
     * @return int|MDB2_Error id on success, a MDB2 error on failure
     * @access public
     */
    function getBeforeID($table, $field = null, $ondemand = true, $quote = true)
    {
        $db =& $this->getDBInstance();
        if (PEAR::isError($db)) {
            return $db;
        }

        if ($db->supports('auto_increment') !== true) {
            $seq = $table.(empty($field) ? '' : '_'.$field);
            $id = $db->nextID($seq, $ondemand);
            if (!$quote || PEAR::isError($id)) {
                return $id;
            }
            return $db->quote($id, 'integer');
        } elseif (!$quote) {
            return null;
        }
        return 'NULL';
    }
    // }}}

    // {{{ getAfterID()

    /**
     * Returns the autoincrement ID if supported or $id
     *
     * @param mixed value as returned by getBeforeId()
     * @param string name of the table into which a new row was inserted
     * @param string name of the field into which a new row was inserted
     *
     * @return int|MDB2_Error id on success, a MDB2 error on failure
     * @access public
     */
    function getAfterID($id, $table, $field = null)
    {
        $db =& $this->getDBInstance();
        if (PEAR::isError($db)) {
            return $db;
        }

        if ($db->supports('auto_increment') !== true) {
            return $id;
        }
        return $db->lastInsertID($table, $field);
    }
    // }}}
}
?>