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+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category Zend
+ * @package Zend_Db
+ * @subpackage Adapter
+ * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ * @version $Id$
+ */
+
+
+/**
+ * @see Zend_Db_Adapter_Abstract
+ */
+
+/**
+ * @see Zend_Db_Profiler
+ */
+
+/**
+ * @see Zend_Db_Select
+ */
+
+/**
+ * @see Zend_Db_Statement_Mysqli
+ */
+
+
+/**
+ * @category Zend
+ * @package Zend_Db
+ * @subpackage Adapter
+ * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ */
+class Zend_Db_Adapter_Mysqli extends Zend_Db_Adapter_Abstract
+{
+
+ /**
+ * Keys are UPPERCASE SQL datatypes or the constants
+ * Zend_Db::INT_TYPE, Zend_Db::BIGINT_TYPE, or Zend_Db::FLOAT_TYPE.
+ *
+ * Values are:
+ * 0 = 32-bit integer
+ * 1 = 64-bit integer
+ * 2 = float or decimal
+ *
+ * @var array Associative array of datatypes to values 0, 1, or 2.
+ */
+ protected $_numericDataTypes = array(
+ Zend_Db::INT_TYPE => Zend_Db::INT_TYPE,
+ Zend_Db::BIGINT_TYPE => Zend_Db::BIGINT_TYPE,
+ Zend_Db::FLOAT_TYPE => Zend_Db::FLOAT_TYPE,
+ 'INT' => Zend_Db::INT_TYPE,
+ 'INTEGER' => Zend_Db::INT_TYPE,
+ 'MEDIUMINT' => Zend_Db::INT_TYPE,
+ 'SMALLINT' => Zend_Db::INT_TYPE,
+ 'TINYINT' => Zend_Db::INT_TYPE,
+ 'BIGINT' => Zend_Db::BIGINT_TYPE,
+ 'SERIAL' => Zend_Db::BIGINT_TYPE,
+ 'DEC' => Zend_Db::FLOAT_TYPE,
+ 'DECIMAL' => Zend_Db::FLOAT_TYPE,
+ 'DOUBLE' => Zend_Db::FLOAT_TYPE,
+ 'DOUBLE PRECISION' => Zend_Db::FLOAT_TYPE,
+ 'FIXED' => Zend_Db::FLOAT_TYPE,
+ 'FLOAT' => Zend_Db::FLOAT_TYPE
+ );
+
+ /**
+ * @var Zend_Db_Statement_Mysqli
+ */
+ protected $_stmt = null;
+
+ /**
+ * Default class name for a DB statement.
+ *
+ * @var string
+ */
+ protected $_defaultStmtClass = 'Zend_Db_Statement_Mysqli';
+
+ /**
+ * Quote a raw string.
+ *
+ * @param mixed $value Raw string
+ *
+ * @return string Quoted string
+ */
+ protected function _quote($value)
+ {
+ if (is_int($value) || is_float($value)) {
+ return $value;
+ }
+ $this->_connect();
+ return "'" . $this->_connection->real_escape_string($value) . "'";
+ }
+
+ /**
+ * Returns the symbol the adapter uses for delimiting identifiers.
+ *
+ * @return string
+ */
+ public function getQuoteIdentifierSymbol()
+ {
+ return "`";
+ }
+
+ /**
+ * Returns a list of the tables in the database.
+ *
+ * @return array
+ */
+ public function listTables()
+ {
+ $result = array();
+ // Use mysqli extension API, because SHOW doesn't work
+ // well as a prepared statement on MySQL 4.1.
+ $sql = 'SHOW TABLES';
+ if ($queryResult = $this->getConnection()->query($sql)) {
+ while ($row = $queryResult->fetch_row()) {
+ $result[] = $row[0];
+ }
+ $queryResult->close();
+ } else {
+ /**
+ * @see Zend_Db_Adapter_Mysqli_Exception
+ */
+ throw new Zend_Db_Adapter_Mysqli_Exception($this->getConnection()->error);
+ }
+ return $result;
+ }
+
+ /**
+ * Returns the column descriptions for a table.
+ *
+ * The return value is an associative array keyed by the column name,
+ * as returned by the RDBMS.
+ *
+ * The value of each array element is an associative array
+ * with the following keys:
+ *
+ * SCHEMA_NAME => string; name of database or schema
+ * TABLE_NAME => string;
+ * COLUMN_NAME => string; column name
+ * COLUMN_POSITION => number; ordinal position of column in table
+ * DATA_TYPE => string; SQL datatype name of column
+ * DEFAULT => string; default expression of column, null if none
+ * NULLABLE => boolean; true if column can have nulls
+ * LENGTH => number; length of CHAR/VARCHAR
+ * SCALE => number; scale of NUMERIC/DECIMAL
+ * PRECISION => number; precision of NUMERIC/DECIMAL
+ * UNSIGNED => boolean; unsigned property of an integer type
+ * PRIMARY => boolean; true if column is part of the primary key
+ * PRIMARY_POSITION => integer; position of column in primary key
+ * IDENTITY => integer; true if column is auto-generated with unique values
+ *
+ * @param string $tableName
+ * @param string $schemaName OPTIONAL
+ * @return array
+ */
+ public function describeTable($tableName, $schemaName = null)
+ {
+ /**
+ * @todo use INFORMATION_SCHEMA someday when
+ * MySQL's implementation isn't too slow.
+ */
+
+ if ($schemaName) {
+ $sql = 'DESCRIBE ' . $this->quoteIdentifier("$schemaName.$tableName", true);
+ } else {
+ $sql = 'DESCRIBE ' . $this->quoteIdentifier($tableName, true);
+ }
+
+ /**
+ * Use mysqli extension API, because DESCRIBE doesn't work
+ * well as a prepared statement on MySQL 4.1.
+ */
+ if ($queryResult = $this->getConnection()->query($sql)) {
+ while ($row = $queryResult->fetch_assoc()) {
+ $result[] = $row;
+ }
+ $queryResult->close();
+ } else {
+ /**
+ * @see Zend_Db_Adapter_Mysqli_Exception
+ */
+ throw new Zend_Db_Adapter_Mysqli_Exception($this->getConnection()->error);
+ }
+
+ $desc = array();
+
+ $row_defaults = array(
+ 'Length' => null,
+ 'Scale' => null,
+ 'Precision' => null,
+ 'Unsigned' => null,
+ 'Primary' => false,
+ 'PrimaryPosition' => null,
+ 'Identity' => false
+ );
+ $i = 1;
+ $p = 1;
+ foreach ($result as $key => $row) {
+ $row = array_merge($row_defaults, $row);
+ if (preg_match('/unsigned/', $row['Type'])) {
+ $row['Unsigned'] = true;
+ }
+ if (preg_match('/^((?:var)?char)\((\d+)\)/', $row['Type'], $matches)) {
+ $row['Type'] = $matches[1];
+ $row['Length'] = $matches[2];
+ } else if (preg_match('/^decimal\((\d+),(\d+)\)/', $row['Type'], $matches)) {
+ $row['Type'] = 'decimal';
+ $row['Precision'] = $matches[1];
+ $row['Scale'] = $matches[2];
+ } else if (preg_match('/^float\((\d+),(\d+)\)/', $row['Type'], $matches)) {
+ $row['Type'] = 'float';
+ $row['Precision'] = $matches[1];
+ $row['Scale'] = $matches[2];
+ } else if (preg_match('/^((?:big|medium|small|tiny)?int)\((\d+)\)/', $row['Type'], $matches)) {
+ $row['Type'] = $matches[1];
+ /**
+ * The optional argument of a MySQL int type is not precision
+ * or length; it is only a hint for display width.
+ */
+ }
+ if (strtoupper($row['Key']) == 'PRI') {
+ $row['Primary'] = true;
+ $row['PrimaryPosition'] = $p;
+ if ($row['Extra'] == 'auto_increment') {
+ $row['Identity'] = true;
+ } else {
+ $row['Identity'] = false;
+ }
+ ++$p;
+ }
+ $desc[$this->foldCase($row['Field'])] = array(
+ 'SCHEMA_NAME' => null, // @todo
+ 'TABLE_NAME' => $this->foldCase($tableName),
+ 'COLUMN_NAME' => $this->foldCase($row['Field']),
+ 'COLUMN_POSITION' => $i,
+ 'DATA_TYPE' => $row['Type'],
+ 'DEFAULT' => $row['Default'],
+ 'NULLABLE' => (bool) ($row['Null'] == 'YES'),
+ 'LENGTH' => $row['Length'],
+ 'SCALE' => $row['Scale'],
+ 'PRECISION' => $row['Precision'],
+ 'UNSIGNED' => $row['Unsigned'],
+ 'PRIMARY' => $row['Primary'],
+ 'PRIMARY_POSITION' => $row['PrimaryPosition'],
+ 'IDENTITY' => $row['Identity']
+ );
+ ++$i;
+ }
+ return $desc;
+ }
+
+ /**
+ * Creates a connection to the database.
+ *
+ * @return void
+ * @throws Zend_Db_Adapter_Mysqli_Exception
+ */
+ protected function _connect()
+ {
+ if ($this->_connection) {
+ return;
+ }
+
+ if (!extension_loaded('mysqli')) {
+ /**
+ * @see Zend_Db_Adapter_Mysqli_Exception
+ */
+ throw new Zend_Db_Adapter_Mysqli_Exception('The Mysqli extension is required for this adapter but the extension is not loaded');
+ }
+
+ if (isset($this->_config['port'])) {
+ $port = (integer) $this->_config['port'];
+ } else {
+ $port = null;
+ }
+
+ if (isset($this->_config['socket'])) {
+ $socket = $this->_config['socket'];
+ } else {
+ $socket = null;
+ }
+
+ $this->_connection = mysqli_init();
+
+ if(!empty($this->_config['driver_options'])) {
+ foreach($this->_config['driver_options'] as $option=>$value) {
+ if(is_string($option)) {
+ // Suppress warnings here
+ // Ignore it if it's not a valid constant
+ $option = @constant(strtoupper($option));
+ if($option === null)
+ continue;
+ }
+ mysqli_options($this->_connection, $option, $value);
+ }
+ }
+
+ // Suppress connection warnings here.
+ // Throw an exception instead.
+ $_isConnected = @mysqli_real_connect(
+ $this->_connection,
+ $this->_config['host'],
+ $this->_config['username'],
+ $this->_config['password'],
+ $this->_config['dbname'],
+ $port,
+ $socket
+ );
+
+ if ($_isConnected === false || mysqli_connect_errno()) {
+
+ $this->closeConnection();
+ /**
+ * @see Zend_Db_Adapter_Mysqli_Exception
+ */
+ throw new Zend_Db_Adapter_Mysqli_Exception(mysqli_connect_error());
+ }
+
+ if (!empty($this->_config['charset'])) {
+ mysqli_set_charset($this->_connection, $this->_config['charset']);
+ }
+ }
+
+ /**
+ * Test if a connection is active
+ *
+ * @return boolean
+ */
+ public function isConnected()
+ {
+ return ((bool) ($this->_connection instanceof mysqli));
+ }
+
+ /**
+ * Force the connection to close.
+ *
+ * @return void
+ */
+ public function closeConnection()
+ {
+ if ($this->isConnected()) {
+ $this->_connection->close();
+ }
+ $this->_connection = null;
+ }
+
+ /**
+ * Prepare a statement and return a PDOStatement-like object.
+ *
+ * @param string $sql SQL query
+ * @return Zend_Db_Statement_Mysqli
+ */
+ public function prepare($sql)
+ {
+ $this->_connect();
+ if ($this->_stmt) {
+ $this->_stmt->close();
+ }
+ $stmtClass = $this->_defaultStmtClass;
+ if (!class_exists($stmtClass)) {
+ Zend_Loader::loadClass($stmtClass);
+ }
+ $stmt = new $stmtClass($this, $sql);
+ if ($stmt === false) {
+ return false;
+ }
+ $stmt->setFetchMode($this->_fetchMode);
+ $this->_stmt = $stmt;
+ return $stmt;
+ }
+
+ /**
+ * Gets the last ID generated automatically by an IDENTITY/AUTOINCREMENT column.
+ *
+ * As a convention, on RDBMS brands that support sequences
+ * (e.g. Oracle, PostgreSQL, DB2), this method forms the name of a sequence
+ * from the arguments and returns the last id generated by that sequence.
+ * On RDBMS brands that support IDENTITY/AUTOINCREMENT columns, this method
+ * returns the last value generated for such a column, and the table name
+ * argument is disregarded.
+ *
+ * MySQL does not support sequences, so $tableName and $primaryKey are ignored.
+ *
+ * @param string $tableName OPTIONAL Name of table.
+ * @param string $primaryKey OPTIONAL Name of primary key column.
+ * @return string
+ * @todo Return value should be int?
+ */
+ public function lastInsertId($tableName = null, $primaryKey = null)
+ {
+ $mysqli = $this->_connection;
+ return (string) $mysqli->insert_id;
+ }
+
+ /**
+ * Begin a transaction.
+ *
+ * @return void
+ */
+ protected function _beginTransaction()
+ {
+ $this->_connect();
+ $this->_connection->autocommit(false);
+ }
+
+ /**
+ * Commit a transaction.
+ *
+ * @return void
+ */
+ protected function _commit()
+ {
+ $this->_connect();
+ $this->_connection->commit();
+ $this->_connection->autocommit(true);
+ }
+
+ /**
+ * Roll-back a transaction.
+ *
+ * @return void
+ */
+ protected function _rollBack()
+ {
+ $this->_connect();
+ $this->_connection->rollback();
+ $this->_connection->autocommit(true);
+ }
+
+ /**
+ * Set the fetch mode.
+ *
+ * @param int $mode
+ * @return void
+ * @throws Zend_Db_Adapter_Mysqli_Exception
+ */
+ public function setFetchMode($mode)
+ {
+ switch ($mode) {
+ case Zend_Db::FETCH_LAZY:
+ case Zend_Db::FETCH_ASSOC:
+ case Zend_Db::FETCH_NUM:
+ case Zend_Db::FETCH_BOTH:
+ case Zend_Db::FETCH_NAMED:
+ case Zend_Db::FETCH_OBJ:
+ $this->_fetchMode = $mode;
+ break;
+ case Zend_Db::FETCH_BOUND: // bound to PHP variable
+ /**
+ * @see Zend_Db_Adapter_Mysqli_Exception
+ */
+ throw new Zend_Db_Adapter_Mysqli_Exception('FETCH_BOUND is not supported yet');
+ break;
+ default:
+ /**
+ * @see Zend_Db_Adapter_Mysqli_Exception
+ */
+ throw new Zend_Db_Adapter_Mysqli_Exception("Invalid fetch mode '$mode' specified");
+ }
+ }
+
+ /**
+ * Adds an adapter-specific LIMIT clause to the SELECT statement.
+ *
+ * @param string $sql
+ * @param int $count
+ * @param int $offset OPTIONAL
+ * @return string
+ */
+ public function limit($sql, $count, $offset = 0)
+ {
+ $count = intval($count);
+ if ($count <= 0) {
+ /**
+ * @see Zend_Db_Adapter_Mysqli_Exception
+ */
+ throw new Zend_Db_Adapter_Mysqli_Exception("LIMIT argument count=$count is not valid");
+ }
+
+ $offset = intval($offset);
+ if ($offset < 0) {
+ /**
+ * @see Zend_Db_Adapter_Mysqli_Exception
+ */
+ throw new Zend_Db_Adapter_Mysqli_Exception("LIMIT argument offset=$offset is not valid");
+ }
+
+ $sql .= " LIMIT $count";
+ if ($offset > 0) {
+ $sql .= " OFFSET $offset";
+ }
+
+ return $sql;
+ }
+
+ /**
+ * Check if the adapter supports real SQL parameters.
+ *
+ * @param string $type 'positional' or 'named'
+ * @return bool
+ */
+ public function supportsParameters($type)
+ {
+ switch ($type) {
+ case 'positional':
+ return true;
+ case 'named':
+ default:
+ return false;
+ }
+ }
+
+ /**
+ * Retrieve server version in PHP style
+ *
+ *@return string
+ */
+ public function getServerVersion()
+ {
+ $this->_connect();
+ $version = $this->_connection->server_version;
+ $major = (int) ($version / 10000);
+ $minor = (int) ($version % 10000 / 100);
+ $revision = (int) ($version % 100);
+ return $major . '.' . $minor . '.' . $revision;
+ }
+}
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