install

nexus/Database/DB.php

@@ -0,0 +1,153 @@
+<?php
+
+namespace Nexus\Database;
+
+class DB
+{
+    private $driver;
+
+    private static $instance;
+
+    private static $queries = [];
+
+    private $isConnected = false;
+
+    private function __construct()
+    {
+
+    }
+
+    private function __clone()
+    {
+
+    }
+
+    public function setDriver(DBInterface $driver)
+    {
+        $this->driver = $driver;
+
+        return $this;
+    }
+
+    public static function getInstance()
+    {
+        if (self::$instance) {
+            return self::$instance;
+        }
+        $instance = new self;
+        $driver = new DBMysqli();
+        $instance->setDriver($driver);
+        return self::$instance = $instance;
+    }
+
+
+    public function connect($host, $username, $password, $database, $port)
+    {
+        if (!$this->isConnected()) {
+            $this->driver->connect($host, $username, $password, $database, $port);
+            $this->isConnected = true;
+        }
+        return true;
+    }
+
+    public function autoConnect()
+    {
+        if ($this->isConnected()) {
+            return;
+        }
+        $config = config('database.mysql');
+        if (!mysql_connect($config['host'], $config['username'], $config['password'], $config['database'], $config['port'])) {
+            throw new DatabaseException(sprintf("mysql connect error: [%s] %s", mysql_errno(), mysql_error()));
+        }
+        mysql_query("SET NAMES UTF8");
+        mysql_query("SET collation_connection = 'utf8_general_ci'");
+        mysql_query("SET sql_mode=''");
+        $this->isConnected = true;
+    }
+
+    public function query(string $sql)
+    {
+        try {
+            $this->autoConnect();
+            return $this->driver->query($sql);
+        } catch (\Exception $e) {
+            do_log(sprintf("%s [%s] %s", $e->getMessage(), $sql, $e->getTraceAsString()));
+            throw new DatabaseException($e->getMessage(), $sql);
+        }
+
+    }
+
+    public function error()
+    {
+        return $this->driver->error();
+    }
+
+    public function errno()
+    {
+        return $this->driver->errno();
+    }
+
+    public function numRows($result)
+    {
+        return $this->driver->numRows($result);
+    }
+
+    public function select_db($database)
+    {
+        return $this->driver->selectDb($database);
+    }
+
+    public function fetchAssoc($result)
+    {
+        return $this->driver->fetchAssoc($result);
+    }
+
+    public function fetchRow($result)
+    {
+        return $this->driver->fetchRow($result);
+    }
+
+    public function fetchArray($result, $type = null)
+    {
+        return $this->driver->fetchArray($result, $type);
+    }
+
+    public function affectedRows()
+    {
+        return $this->driver->affectedRows();
+    }
+
+    public function escapeString(string $string)
+    {
+        $this->autoConnect();
+        return $this->driver->escapeString($string);
+    }
+
+    public function lastInsertId()
+    {
+        return $this->driver->lastInsertId();
+    }
+
+    public function freeResult($result)
+    {
+        return $this->driver->freeResult($result);
+    }
+
+    public function isConnected()
+    {
+        return $this->isConnected;
+    }
+
+    public static function insert($table, $data)
+    {
+        if (empty($table) || empty($data) || !is_array($data)) {
+            throw new DatabaseException("require table and data(array).");
+        }
+        $fields = array_map(function ($value) {return "`$value`";}, array_keys($data));
+        $values = array_map(function ($value) {return sqlesc($value);}, array_values($data));
+        $sql = sprintf("insert into `%s` (%s) values (%s)", $table, implode(', ', $fields), implode(', ', $values));
+        sql_query($sql);
+        return mysql_insert_id();
+    }
+
+}

nexus/Database/DBInterface.php

@@ -0,0 +1,32 @@
+<?php
+namespace Nexus\Database;
+
+interface DBInterface
+{
+    public function connect($host, $username, $password, $database, $port);
+
+    public function query(string $sql);
+
+    public function error(): string;
+
+    public function errno(): int;
+
+    public function numRows($result): int;
+
+    public function selectDb($database);
+
+    public function fetchAssoc($result);
+
+    public function fetchRow($result);
+
+    public function fetchArray($result, $type);
+
+    public function affectedRows(): int;
+
+    public function escapeString(string $string): string;
+
+    public function lastInsertId(): int;
+
+    public function freeResult($result);
+
+}

nexus/Database/DBMysqli.php

@@ -0,0 +1,85 @@
+<?php
+namespace Nexus\Database;
+
+class DBMysqli implements DBInterface
+{
+    private $mysqli;
+
+    public function connect($host, $username, $password, $database, $port)
+    {
+        $mysqli = new \mysqli($host, $username, $password, $database, $port);
+        /* check connection */
+        if (mysqli_connect_errno()) {
+            throw new DatabaseException(mysqli_connect_error());
+        }
+        /* activate reporting */
+        $driver = new \mysqli_driver();
+        $driver->report_mode = MYSQLI_REPORT_ALL & ~MYSQLI_REPORT_INDEX;
+
+        return $this->mysqli = $mysqli;
+    }
+
+    public function query(string $sql)
+    {
+        return $this->mysqli->query($sql);
+    }
+
+    public function error(): string
+    {
+        return $this->mysqli->error;
+    }
+
+    public function errno(): int
+    {
+        return $this->mysqli->errno;
+    }
+
+    public function numRows($mysqliResult): int
+    {
+        return $mysqliResult->num_rows;
+    }
+
+    public function selectDb($database)
+    {
+        return $this->mysqli->select_db($database);
+    }
+
+    public function fetchAssoc($mysqliResult)
+    {
+        return $mysqliResult->fetch_assoc();
+    }
+
+    public function fetchRow($mysqliResult)
+    {
+        return $mysqliResult->fetch_row();
+    }
+
+    public function fetchArray($mysqliResult, $type)
+    {
+        if (is_null($type)) {
+            $type = MYSQLI_BOTH;
+        }
+        return $mysqliResult->fetch_array($type);
+    }
+
+    public function affectedRows(): int
+    {
+        return $this->mysqli->affected_rows;
+    }
+
+    public function escapeString(string $string): string
+    {
+        return $this->mysqli->real_escape_string($string);
+    }
+
+    public function lastInsertId(): int
+    {
+        return $this->mysqli->insert_id;
+    }
+
+    public function freeResult($mysqliResult)
+    {
+        return $mysqliResult->free_result();
+    }
+
+}

nexus/Database/DatabaseException.php

@@ -0,0 +1,12 @@
+<?php
+namespace Nexus\Database;
+
+class DatabaseException extends \Exception
+{
+
+    public function __construct($message, $query = '')
+    {
+        parent::__construct("$message [$query]");
+    }
+
+}

nexus/Database/helpers.php

@@ -0,0 +1,67 @@
+<?php
+use Nexus\Database\DB;
+
+function mysql_connect($host, $username, $password, $database, $port)
+{
+    return DB::getInstance()->connect($host, $username, $password, $database, $port);
+}
+
+function mysql_errno()
+{
+    return DB::getInstance()->errno();
+}
+
+function mysql_error()
+{
+    return DB::getInstance()->error();
+}
+
+function mysql_query(string $sql)
+{
+    return DB::getInstance()->query($sql);
+}
+
+function mysql_select_db($database)
+{
+    return DB::getInstance()->select_db($database);
+}
+
+function mysql_num_rows($result)
+{
+    return DB::getInstance()->numRows($result);
+}
+
+function mysql_fetch_array($result, $type = null)
+{
+    return DB::getInstance()->fetchArray($result, $type);
+}
+
+function mysql_fetch_assoc($result)
+{
+    return DB::getInstance()->fetchAssoc($result);
+}
+
+function mysql_fetch_row($result)
+{
+    return DB::getInstance()->fetchRow($result);
+}
+
+function mysql_affected_rows()
+{
+    return DB::getInstance()->affectedRows();
+}
+
+function mysql_real_escape_string($string)
+{
+    return DB::getInstance()->escapeString($string);
+}
+
+function mysql_insert_id()
+{
+    return DB::getInstance()->lastInsertId();
+}
+
+function mysql_free_result($result)
+{
+    return DB::getInstance()->freeResult($result);
+}