<?php
class mysql {
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private $db_host;//database host
private $db_user; // database username
private $db_pwd; // database username password
private $db_database; // database name
private $conn; // database connection identification;
private $result; // Result resource identification for query command execution
private $sql; //sql execution statement
private $row; // Number of entries returned
private $coding; / / database coding, GBK,UTF8,gb2312
private $bulletin = true; // Whether to open error records
private $show_error = false; // Test phase, showing all errors, security risks, default closure
private $is_error = false; / / / if the error is immediately terminated, the default true is recommended not to be enabled because it is very painful for users to see nothing when there are problems.
/*Constructor*/
public function __construct($db_host, $db_user, $db_pwd, $db_database, $conn, $coding) {
$this->db_host = $db_host;
$this->db_user = $db_user;
$this->db_pwd = $db_pwd;
$this->db_database = $db_database;
$this->conn = $conn;
$this->coding = $coding;
$this->connect();
}
/*Database Connection*/
public function connect() {
if ($this->conn == "pconn") {
//Permanent link
$this->conn = mysql_pconnect($this->db_host, $this->db_user, $this->db_pwd);
} else {
//Even links
$this->conn = mysql_connect($this->db_host, $this->db_user, $this->db_pwd);
}
if (!mysql_select_db($this->db_database, $this->conn)) {
if ($this->show_error) {
$this->show_error("The database is not available:", $this->db_database);
}
}
mysql_query("SET NAMES $this->coding");
}
/*Database Execution Statement, Executable Query Add, Modify and Delete Any sql Statement*/
public function query($sql) {
if ($sql == "") {
$this->show_error("SQL Statement error:", "SQL Query statement is empty");
}
$this->sql = $sql;
$result = mysql_query($this->sql, $this->conn);
if (!$result) {
//In debugging, sql statements are printed automatically when they are wrong
if ($this->show_error) {
$this->show_error("error SQL Sentence:", $this->sql);
}
} else {
$this->result = $result;
}
return $this->result;
}
/*Create a new database to add*/
public function create_database($database_name) {
$database = $database_name;
$sqlDatabase = 'create database ' . $database;
$this->query($sqlDatabase);
}
/*Query all databases on the server*/
//Separate the system database from the user database and display it more intuitively?
public function show_databases() {
$this->query("show databases");
echo "Existing databases:" . $amount = $this->db_num_rows($rs);
echo "<br />";
$i = 1;
while ($row = $this->fetch_array($rs)) {
echo "$i $row[Database]";
echo "<br />";
$i++;
}
}
//Returns all database names in the host as arrays
public function databases() {
$rsPtr = mysql_list_dbs($this->conn);
$i = 0;
$cnt = mysql_num_rows($rsPtr);
while ($i < $cnt) {
$rs[] = mysql_db_name($rsPtr, $i);
$i++;
}
return $rs;
}
/*Query all tables under the database*/
public function show_tables($database_name) {
$this->query("show tables");
echo "Existing databases:" . $amount = $this->db_num_rows($rs);
echo "<br />";
$i = 1;
while ($row = $this->fetch_array($rs)) {
$columnName = "Tables_in_" . $database_name;
echo "$i $row[$columnName]";
echo "<br />";
$i++;
}
}
/*
mysql_fetch_row() array $row[0],$row[1],$row[2]
mysql_fetch_array() array $row[0] Or $row[id]
mysql_fetch_assoc() array Case-sensitive with $row - > content field
mysql_fetch_object() object Case sensitive with $row[id],$row[content] fields
*/
/*Achieving Result Data*/
public function mysql_result_li() {
return mysql_result($str);
}
/*Get the recordset, get the array-index and association, and use $row['content'] */
public function fetch_array($resultt="") {
if($resultt<>""){
return mysql_fetch_array($resultt);
}else{
return mysql_fetch_array($this->result);
}
}
//Get the associated array, using $row ['field name']
public function fetch_assoc() {
return mysql_fetch_assoc($this->result);
}
//Get the numeric index array, using $row[0],$row[1],$row[2]
public function fetch_row() {
return mysql_fetch_row($this->result);
}
//Get an array of objects, using $row - > content
public function fetch_Object() {
return mysql_fetch_object($this->result);
}
//Simplified Query select
public function findall($table) {
$this->query("SELECT * FROM $table");
}
//Simplified Query select
public function select($table, $columnName = "*", $condition = '', $debug = '') {
$condition = $condition ? ' Where ' . $condition : NULL;
if ($debug) {
echo "SELECT $columnName FROM $table $condition";
} else {
$this->query("SELECT $columnName FROM $table $condition");
}
}
//Simplified Delete
public function delete($table, $condition, $url = '') {
if ($this->query("DELETE FROM $table WHERE $condition")) {
if (!empty ($url))
$this->Get_admin_msg($url, 'Delete successfully!');
}
}
//Simplified insert insert
public function insert($table, $columnName, $value, $url = '') {
if ($this->query("INSERT INTO $table ($columnName) VALUES ($value)")) {
if (!empty ($url))
$this->Get_admin_msg($url, 'Add success!');
}
}
//Simplified modification update
public function update($table, $mod_content, $condition, $url = '') {
//echo "UPDATE $table SET $mod_content WHERE $condition"; exit();
if ($this->query("UPDATE $table SET $mod_content WHERE $condition")) {
if (!empty ($url))
$this->Get_admin_msg($url);
}
}
/*Get the ID generated by the previous INSERT operation*/
public function insert_id() {
return mysql_insert_id();
}
//A data record pointing to a determination
public function db_data_seek($id) {
if ($id > 0) {
$id = $id -1;
}
if (!@ mysql_data_seek($this->result, $id)) {
$this->show_error("SQL Wrong statement:", "The specified data is empty");
}
return $this->result;
}
// The Number of Sets Calculated Based on the Results of select Query
public function db_num_rows() {
if ($this->result == null) {
if ($this->show_error) {
$this->show_error("SQL sentence in wrong", "For the time being, nothing!");
}
} else {
return mysql_num_rows($this->result);
}
}
// Based on insert,update,delete execution results to get the number of affected rows
public function db_affected_rows() {
return mysql_affected_rows();
}
//Output Display sql Statement
public function show_error($message = "", $sql = "") {
if (!$sql) {
echo "<font color='red'>" . $message . "</font>";
echo "<br />";
} else {
echo "<fieldset>";
echo "<legend>Error message prompt:</legend><br />";
echo "<div style='font-size:14px; clear:both; font-family:Verdana, Arial, Helvetica, sans-serif;'>";
echo "<div style='height:20px; background:#000000; border:1px #000000 solid'>";
echo "<font color='white'>Error number: 12142</font>";
echo "</div><br />";
echo "Reasons for error:" . mysql_error() . "<br /><br />";
echo "<div style='height:20px; background:#FF0000; border:1px #FF0000 solid'>";
echo "<font color='white'>" . $message . "</font>";
echo "</div>";
echo "<font color='red'><pre>" . $sql . "</pre></font>";
$ip = $this->getip();
if ($this->bulletin) {
$time = date("Y-m-d H:i:s");
$message = $message . "\r\n$this->sql" . "\r\n Customer IP:$ip" . "\r\n time :$time" . "\r\n\r\n";
$server_date = date("Y-m-d");
$filename = $server_date . ".txt";
$file_path = "error/" . $filename;
$error_content = $message;
//$error_content= "incorrect database, not linkable";
$file = "error"; //Set File Save Directory
//Create folders
if (!file_exists($file)) {
if (!mkdir($file, 0777)) {
//The default mode is 0777, which means the most possible access
die("upload files directory does not exist and creation failed");
}
}
//Establish txt date file
if (!file_exists($file_path)) {
//echo "Establishment Date Document";
fopen($file_path, "w+");
//First, make sure that the file exists and is writable
if (is_writable($file_path)) {
//Open $filename in add mode, and the file pointer will be at the beginning of the file
if (!$handle = fopen($file_path, 'a')) {
echo "Cannot open file $filename";
exit;
}
//Write $somecontent into the file we open.
if (!fwrite($handle, $error_content)) {
echo "Cannot write to file $filename";
exit;
}
//echo "file $filename write successfully";
echo "-Error records are saved!";
//Close file
fclose($handle);
} else {
echo "file $filename Not to write";
}
} else {
//First, make sure that the file exists and is writable
if (is_writable($file_path)) {
//Open $filename in add mode, and the file pointer will be at the beginning of the file
if (!$handle = fopen($file_path, 'a')) {
echo "Cannot open file $filename";
exit;
}
//Write $somecontent into the file we open.
if (!fwrite($handle, $error_content)) {
echo "Cannot write to file $filename";
exit;
}
//echo "file $filename write successfully";
echo "-Error records are saved!";
//Close file
fclose($handle);
} else {
echo "file $filename Not to write";
}
}
}
echo "<br />";
if ($this->is_error) {
exit;
}
}
echo "</div>";
echo "</fieldset>";
echo "<br />";
}
//Release result set
public function free() {
@ mysql_free_result($this->result);
}
//Database Selection
public function select_db($db_database) {
return mysql_select_db($db_database);
}
//Number of query fields
public function num_fields($table_name) {
//return mysql_num_fields($this->result);
$this->query("select * from $table_name");
echo "<br />";
echo "Number of fields:" . $total = mysql_num_fields($this->result);
echo "<pre>";
for ($i = 0; $i < $total; $i++) {
print_r(mysql_fetch_field($this->result, $i));
}
echo "</pre>";
echo "<br />";
}
//Get MySQL Server Information
public function mysql_server($num = '') {
switch ($num) {
case 1 :
return mysql_get_server_info(); //MySQL Server Information
break;
case 2 :
return mysql_get_host_info(); //Get MySQL host information
break;
case 3 :
return mysql_get_client_info(); //Get MySQL client information
break;
case 4 :
return mysql_get_proto_info(); //Get MySQL Protocol Information
break;
default :
return mysql_get_client_info(); //Get mysql version information by default
}
}
//Destructor, automatic database closure, garbage collection mechanism
public function __destruct() {
if (!empty ($this->result)) {
$this->free();
}
mysql_close($this->conn);
} //function __destruct();
/*Get the client's real IP address*/
function getip() {
if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown")) {
$ip = getenv("HTTP_CLIENT_IP");
} else
if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown")) {
$ip = getenv("HTTP_X_FORWARDED_FOR");
} else
if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown")) {
$ip = getenv("REMOTE_ADDR");
} else
if (isset ($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], "unknown")) {
$ip = $_SERVER['REMOTE_ADDR'];
} else {
$ip = "unknown";
}
return ($ip);
}
function inject_check($sql_str) { //Prevent injection
$check = eregi('select|insert|update|delete|\'|\/\*|\*|\.\.\/|\.\/|union|into|load_file|outfile', $sql_str);
if ($check) {
echo "Input illegal injection content!";
exit ();
} else {
return $sql_str;
}
}
function checkurl() { //Check the way
if (preg_replace("/https?:\/\/([^\:\/]+).*/i", "\\1", $_SERVER['HTTP_REFERER']) !== preg_replace("/([^\:]+).*/", "\\1", $_SERVER['HTTP_HOST'])) {
header("Location: http://www.dareng.com");
exit();
}
}}
?>