first commit

2024-04-19 14:04:41 +07:00
commit 014283036f
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+<?php
+/**
+* MySQL Database Connection Class
+* @access public
+* @package SPLIB
+*/
+class MySQL {
+    /**
+    * MySQL server hostname
+    * @access private
+    * @var string
+    */
+    var $host;
+
+    /**
+    * MySQL username
+    * @access private
+    * @var string
+    */
+    var $dbUser;
+
+    /**
+    * MySQL user's password
+    * @access private
+    * @var string
+    */
+    var $dbPass;
+
+    /**
+    * Name of database to use
+    * @access private
+    * @var string
+    */
+    var $dbName;
+
+    /**
+    * MySQL Resource link identifier stored here
+    * @access private
+    * @var string
+    */
+    var $dbConn;
+
+    /**
+    * Stores error messages for connection errors
+    * @access private
+    * @var string
+    */
+    var $connectError;
+
+    /**
+    * MySQL constructor
+    * @param string host (MySQL server hostname)
+    * @param string dbUser (MySQL User Name)
+    * @param string dbPass (MySQL User Password)
+    * @param string dbName (Database to select)
+    * @access public
+    */
+    function MySQL ($host,$dbUser,$dbPass,$dbName) {
+        $this->host=$host;
+        $this->dbUser=$dbUser;
+        $this->dbPass=$dbPass;
+        $this->dbName=$dbName;
+        $this->connectToDb();
+    }
+
+    /**
+    * Establishes connection to MySQL and selects a database
+    * @return void
+    * @access private
+    */
+    function connectToDb () {
+        // Make connection to MySQL server
+        if (!$this->dbConn = @mysql_connect($this->host,
+                                      $this->dbUser,
+                                      $this->dbPass)) {
+            trigger_error('Could not connect to server');
+            $this->connectError=true;
+        // Select database
+        } else if ( !@mysql_select_db($this->dbName,$this->dbConn) ) {
+            trigger_error('Could not select database');
+            $this->connectError=true;
+        }
+    }
+
+    /**
+    * Checks for MySQL errors
+    * @return boolean
+    * @access public
+    */
+    function isError () {
+        if ( $this->connectError )
+            return true;
+        $error=mysql_error ($this->dbConn);
+        if ( empty ($error) )
+            return false;
+        else
+            return true;
+    }
+
+    /**
+    * Returns an instance of MySQLResult to fetch rows with
+    * @param $sql string the database query to run
+    * @return MySQLResult
+    * @access public
+    */
+    function query($sql) {
+        if (!$queryResource=$db->query($sql,$this->dbConn))
+            trigger_error ('Query failed: '.mysql_error($this->dbConn).
+                           ' SQL: '.$sql);
+        return new MySQLResult($this,$queryResource);
+    }
+}
+
+/**
+* MySQLResult Data Fetching Class
+* @access public
+* @package SPLIB
+*/
+class MySQLResult {
+    /**
+    * Instance of MySQL providing database connection
+    * @access private
+    * @var MySQL
+    */
+    var $mysql;
+
+    /**
+    * Query resource
+    * @access private
+    * @var resource
+    */
+    var $query;
+
+    /**
+    * MySQLResult constructor
+    * @param object mysql   (instance of MySQL class)
+    * @param resource query (MySQL query resource)
+    * @access public
+    */
+    function MySQLResult(& $mysql,$query) {
+        $this->mysql=& $mysql;
+        $this->query=$query;
+    }
+
+    /**
+    * Fetches a row from the result
+    * @return array
+    * @access public
+    */
+    function fetch () {
+        if ( $row=mysqli_fetch_array($this->query,MYSQL_ASSOC) ) {
+            return $row;
+        } else if ( $this->size() > 0 ) {
+            mysql_data_seek($this->query,0);
+            return false;
+        } else {
+            return false;
+        }
+    }
+
+    /**
+    * Returns the number of rows selected
+    * @return int
+    * @access public
+    */
+    function size () {
+        return $this->query->numRows();
+    }
+
+    /**
+    * Returns the ID of the last row inserted
+    * @return int
+    * @access public
+    */
+    function insertID () {
+        return mysqli_insert_id($this->mysql->dbConn);
+    }
+    
+    /**
+    * Checks for MySQL errors
+    * @return boolean
+    * @access public
+    */
+    function isError () {
+        return $this->mysql->isError();
+    }
+}
+?>