| 0,0 → 1,200 |
|---|
| <?php |
| |
| /* |
| * OIDplus 2.0 |
| * Copyright 2019 Daniel Marschall, ViaThinkSoft |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| class OIDplusDatabaseConnectionMySQLi extends OIDplusDatabaseConnection { |
| private $conn = null; // only with MySQLnd |
| private $prepare_cache = array(); |
| private $last_error = null; // we need that because MySQL divides prepared statement errors and normal query errors, but we have only one "error()" method |
| |
| public function doQuery(string $sql, /*?array*/ $prepared_args=null): OIDplusQueryResult { |
| $this->last_error = null; |
| if (is_null($prepared_args)) { |
| $res = $this->conn->query($sql, MYSQLI_STORE_RESULT); |
| |
| if ($res === false) { |
| $this->last_error = $this->conn->error; |
| throw new OIDplusSQLException($sql, $this->error()); |
| } else { |
| return new OIDplusQueryResultMySQL($res); |
| } |
| } else { |
| if (!is_array($prepared_args)) { |
| throw new OIDplusException("'prepared_args' must be either NULL or an ARRAY."); |
| } |
| |
| foreach ($prepared_args as &$value) { |
| // MySQLi has problems converting "true/false" to the data type "tinyint(1)" |
| // It seems to be the same issue like in PDO reported 14 years ago at https://bugs.php.net/bug.php?id=57157 |
| if (is_bool($value)) $value = $value ? '1' : '0'; |
| } |
| |
| if (isset($this->prepare_cache[$sql])) { |
| $ps = $this->prepare_cache[$sql]; |
| } else { |
| $ps = $this->conn->prepare($sql); |
| if (!$ps) { |
| $this->last_error = $this->conn->error; |
| throw new OIDplusSQLException($sql, 'Cannot prepare statement: '.$this->error()); |
| } |
| |
| // Caching the prepared is very risky |
| // In PDO and ODBC we may not do it, because execute() will |
| // destroy the existing cursors. |
| // (test this with ./?goto=oid%3A1.3.6.1.4.1.37553.8.32488192274 |
| // you will see that 2.999 is missing in the tree) |
| // But $ps->get_result() seems to "clone" the cursor, |
| // so that $ps->execute may be called a second time?! |
| // However, it only works with mysqlnd's get_result, |
| // not with OIDplusQueryResultMySQLNoNativeDriver |
| if (self::nativeDriverAvailable()) { |
| $this->prepare_cache[$sql] = $ps; |
| } |
| } |
| |
| self::bind_placeholder_vars($ps,$prepared_args); |
| if (!$ps->execute()) { |
| $this->last_error = mysqli_stmt_error($ps); |
| throw new OIDplusSQLException($sql, $this->error()); |
| } |
| |
| if (self::nativeDriverAvailable()) { |
| return new OIDplusQueryResultMySQL($ps->get_result()); |
| } else { |
| return new OIDplusQueryResultMySQLNoNativeDriver($ps); |
| } |
| } |
| } |
| |
| public function insert_id(): int { |
| return $this->conn->insert_id; |
| } |
| |
| public function error(): string { |
| $err = $this->last_error; |
| if ($err == null) $err = ''; |
| return $err; |
| } |
| |
| protected function doConnect()/*: void*/ { |
| if (!function_exists('mysqli_connect')) throw new OIDplusException('PHP extension "MySQLi" not installed'); |
| |
| // Try connecting to the database |
| $host = OIDplus::baseConfig()->getValue('MYSQL_HOST', 'localhost'); |
| $username = OIDplus::baseConfig()->getValue('MYSQL_USERNAME', 'root'); |
| $password = OIDplus::baseConfig()->getValue('MYSQL_PASSWORD', ''); |
| $database = OIDplus::baseConfig()->getValue('MYSQL_DATABASE', 'oidplus'); |
| list($hostname,$port) = explode(':', $host.':'.ini_get("mysqli.default_port")); |
| $this->conn = @new mysqli($hostname, $username, $password, $database, $port); |
| if (!empty($this->conn->connect_error) || ($this->conn->connect_errno != 0)) { |
| $message = $this->conn->connect_error; |
| throw new OIDplusConfigInitializationException('Connection to the database failed! '.$message); |
| } |
| |
| $this->prepare_cache = array(); |
| $this->last_error = null; |
| |
| $this->query("SET NAMES 'utf8'"); |
| |
| $this->slang = self::getHardcodedSlangById('mysql'); |
| if (is_null($this->slang)) { |
| throw new OIDplusConfigInitializationException("Slang plugin 'mysql' is missing"); |
| } |
| } |
| |
| protected function doDisconnect()/*: void*/ { |
| $this->prepare_cache = array(); |
| if (!is_null($this->conn)) { |
| $this->conn->close(); |
| $this->conn = null; |
| } |
| } |
| |
| private $intransaction = false; |
| |
| public function transaction_supported(): bool { |
| return true; |
| } |
| |
| public function transaction_level(): int { |
| return $this->intransaction ? 1 : 0; |
| } |
| |
| public function transaction_begin()/*: void*/ { |
| if ($this->intransaction) throw new OIDplusException("Nested transactions are not supported by this database plugin."); |
| $this->conn->autocommit(false); |
| $this->conn->begin_transaction(); |
| $this->intransaction = true; |
| } |
| |
| public function transaction_commit()/*: void*/ { |
| $this->conn->commit(); |
| $this->conn->autocommit(true); |
| $this->intransaction = false; |
| } |
| |
| public function transaction_rollback()/*: void*/ { |
| $this->conn->rollback(); |
| $this->conn->autocommit(true); |
| $this->intransaction = false; |
| } |
| |
| public function sqlDate(): string { |
| return 'now()'; |
| } |
| |
| public static function nativeDriverAvailable(): bool { |
| return function_exists('mysqli_fetch_all') && (OIDplus::baseConfig()->getValue('MYSQL_FORCE_MYSQLND_SUPPLEMENT', false) === false); |
| } |
| |
| private static function bind_placeholder_vars(&$stmt,$params): bool { |
| // Credit to: Dave Morgan |
| // Code taken from: http://www.devmorgan.com/blog/2009/03/27/dydl-part-3-dynamic-binding-with-mysqli-php/ |
| // https://stackoverflow.com/questions/17219214/how-to-bind-in-mysqli-dynamically |
| if ($params != null) { |
| $types = ''; //initial sting with types |
| foreach ($params as $param) { //for each element, determine type and add |
| if (is_int($param)) { |
| $types .= 'i'; //integer |
| } elseif (is_float($param)) { |
| $types .= 'd'; //double |
| } elseif (is_string($param)) { |
| $types .= 's'; //string |
| } else { |
| $types .= 'b'; //blob and unknown |
| } |
| } |
| |
| $bind_names = array(); |
| $bind_names[] = $types; //first param needed is the type string, e.g.: 'issss' |
| |
| for ($i=0; $i<count($params);$i++) { //go through incoming params and added em to array |
| $bind_name = 'bind' . $i; //give them an arbitrary name |
| $$bind_name = $params[$i]; //add the parameter to the variable variable |
| $bind_names[] = &$$bind_name; //now associate the variable as an element in an array |
| } |
| |
| //error_log("better_mysqli has params ".print_r($bind_names, 1)); |
| //call the function bind_param with dynamic params |
| call_user_func_array(array($stmt,'bind_param'),$bind_names); |
| return true; |
| } else { |
| return false; |
| } |
| } |
| } |