PHP mysqli Mode Connection class

Share a PHP mysqli connection class complete code instance, about MYSQLI usage instance.

A database class instance that joins the database in PHP in Mysqli way, the database class is organized from a PHP cms, can implement PHP connection database class, mysqli version, compatible PHP4, for the targeted needs of friends can be optimized and modified according to this code.
<?php
#==================================================================================================
# Filename:/db/db_mysqli.php
# Note: Connect to the database class, version mysqli
#==================================================================================================
#[class Library SQL]
Class Db_mysqli
{
var $query _count = 0;
var $host;
var $user;
var $pass;
var $data;
var $conn;
var $result;
var $prefix = "Qinggan_";
Returns the result set type, which is the number + character by default
var $rs _type = Mysqli_assoc;
var $query _times = 0;#[query Time]
var $conn _times = 0;#[Connection Database time]
var $unbuffered = false;
Define a query list
var $querylist;
var $debug = false;
#[Constructor]
function __construct ($config =array ())
{
$this->host = $config [' Host ']? $config [' Host ']: ' localhost ';
$this->port = $config [' Port ']? $config [' Port ']: ' 3306 ';
$this->user = $config [' User ']? $config [' User ']: ' Root ';
$this->pass = $config [' Pass ']? $config [' Pass ']: ';
$this->data = $config [' Data ']? $config [' Data ']: ';
$this->debug = $config ["Debug"]? $config ["Debug"]: false;
$this->prefix = $config [' prefix ']? $config [' prefix ']: ' Qinggan_ ';
if ($this->data)
{
$ifconnect = $this->connect ($this->data);
if (! $ifconnect)
{
$this->conn = false;
return false;
}
}
return true;
}
#[compatible PHP4]
function Db_mysqli ($config =array ())
{
return $this->__construct ($config);
}
#[Connection Database]
Function Connect ($database = "")
{
$start _time = $this->time_used ();
if (! $this->port) $this->port = "3306";
$this->conn = @mysqli_connect ($this->host, $this->user, $this->pass, "", $this->port) or false;
if (! $this->conn)
{
return false;
}
$version = $this->get_version ();
if ($version > "4.1")
{
Mysqli_query ($this->conn, "SET NAMES ' UTF8 '");
if ($version > "5.0.1")
{
Mysqli_query ($this->conn, "SET sql_mode=");
}
}
$end _time = $this->time_used ();
$this->conn_times + = round ($end _time-$start _time,5); #[time to connect to database]
$ifok = $this->select_db ($database);
Return $ifok? True:false;
}
function select_db ($data = "")
{
$database = $data? $data: $this->data;
if (! $database)
{
return false;
}
$this->data = $database;
$start _time = $this->time_used ();
$ifok = mysqli_select_db ($this->conn, $database);
if (! $ifok)
{
return false;
}
$end _time = $this->time_used ();
$this->conn_times + = round ($end _time-$start _time,5); #[time to connect to database]
return true;
}
#[Close the database connection, which fails when you use persistent connections]
function Close ()
{
if (Is_resource ($this->conn))
{
Return Mysqli_close ($this->conn);
}
Else
{
return true;
}
}
function __destruct ()
{
return $this->close ();
}
function set ($name, $value)
{
if ($name = = "Rs_type")
{
$value = Strtolower ($value) = = "num"? MYSQLI_NUM:MYSQLI_ASSOC;
}
$this $name = $value;
}
function query ($sql)
{
if (!is_resource ($this->conn))
{
$this->connect ();
}
Else
{
if (!mysql_ping ($this->conn))
{
$this->close ();
$this->connect ();
}
}
if ($this->debug)
{
$sqlkey = MD5 ($sql);
if ($this->querylist)
{
$qlist = Array_keys ($this->querylist);
if (In_array ($sqlkey, $qlist))
{
$count = $this->querylist[$sqlkey] ["Count"] + 1;
$this->querylist[$sqlkey] = array ("sql" = = $sql, "count" = = $count);
}else{
$this->querylist[$sqlkey] = array ("SQL" = + $sql, "count" =>1);
}
}
else{
$this->querylist[$sqlkey] = array ("SQL" = + $sql, "count" =>1);
}
}
$start _time = $this->time_used ();
$func = $this->unbuffered && function_exists ("Mysqli_multi_query")? "Mysqli_multi_query": "Mysqli_query";
$this->result = @ $func ($this->conn, $sql);
$this->query_count++;
$end _time = $this->time_used ();
$this->query_times + = round ($end _time-$start _time,5); #[Query Time]
if (! $this->result)
{
return false;
}
return $this->result;
}
function Get_all ($sql = "", $primary = "")
{
$result = $sql? $this->query ($sql): $this->result;
if (! $result)
{
return false;
}
$start _time = $this->time_used ();
$rs = Array ();
$is _rs = false;
while ($rows = Mysqli_fetch_array ($result, $this->rs_type))
{(Script Academy www.jbxue.com)
if ($primary && $rows [$primary])
{
$rs [$rows [$primary]] = $rows;
}
Else
{
$rs [] = $rows;
}
$is _rs = true;
}
$end _time = $this->time_used ();
$this->query_times + = round ($end _time-$start _time,5); #[Query Time]
Return ($is _rs $rs: false);
}
function Get_one ($sql = "")
{
$start _time = $this->time_used ();
$result = $sql? $this->query ($sql): $this->result;
if (! $result)
{
return false;
}
$rows = Mysqli_fetch_array ($result, $this->rs_type);
$end _time = $this->time_used ();
$this->query_times + = round ($end _time-$start _time,5); #[Query Time]
return $rows;
}
function insert_id ($sql = "")
{
if ($sql)
{
$rs = $this->get_one ($sql);
return $rs;
}
Else
{
Return mysqli_insert_id ($this->conn);
}
}
function Insert ($sql)
{
$this->result = $this->query ($sql);
$id = $this->insert_id ();
return $id;
}
function All_array ($table, $condition = "", $orderby = "")
{
if (! $table)
{
return false;
}
$table = $this->prefix. $table;
$sql = "SELECT * from". $table;
if ($condition && is_array ($condition) && count ($condition) >0)
{
$sql _fields = Array ();
foreach ($condition as $key = $value)
{
$sql _fields[] = "'". $key. " ' = '. $value. "' ";
}
$sql. = "WHERE". Implode ("and", $sql _fields);
}
if ($orderby)
{
$sql. = "ORDER by". $orderby;
}
$rslist = $this->get_all ($sql);
return $rslist;
}
function One_array ($table, $condition = "")
{
if (! $table)
{
return false;
}
$table = $this->prefix. $table;
$sql = "SELECT * from". $table;
if ($condition && is_array ($condition) && count ($condition) >0)
{
$sql _fields = Array ();
foreach ($condition as $key = $value)
{
$sql _fields[] = "'". $key. " ' = '. $value. "' ";
}
$sql. = "WHERE". Implode ("and", $sql _fields);
}
$rslist = $this->get_one ($sql);
return $rslist;
}
Writes an array to the data
function Insert_array ($data, $table, $insert _type= "Insert")
{
if (! $table | |!is_array ($DATA) | |! $data)
{
return false;
}
$table = $this->prefix. $table;//auto-increment table prefix
if ($insert _type = = = "Insert")
{
$sql = "INSERT into". $table;
}
Else
{
$sql = "REPLACE into". $table;
}
$sql _fields = Array ();
$sql _val = Array ();
foreach ($data as $key = $value)
{
$sql _fields[] = "'". $key. " `";
$sql _val[] = "'". $value. "'";
}
$sql. = "(". ( Implode (",", $sql _fields)). ") VALUES ("." ( Implode (",", $sql _val)). ")";
return $this->insert ($sql);
}
Update data
function Update_array ($data, $table, $condition)
{
if (! $data | |! $table | |! $condition | |!is_array ($data) | |!is_array ($condition))
{
return false;
}
$table = $this->prefix. $table;//auto-increment table prefix
$sql = "UPDATE". $table. " SET ";
$sql _fields = Array ();
foreach ($data as $key = $value)
{
$sql _fields[] = "'". $key. " ' = '. $value. "'";
}
$sql. = Implode (",", $sql _fields);
$sql _fields = Array ();
foreach ($condition as $key = $value)
{
$sql _fields[] = "'". $key. " ' = '. $value. "' ";
}
$sql. = "WHERE". Implode ("and", $sql _fields);
return $this->query ($sql);
}
function count ($sql = "")
{
if ($sql)
{
$this->rs_type = Mysqli_num;
$this->query ($sql);
$rs = $this->get_one ();
$this->rs_type = MYSQLI_ASSOC;
return $rs [0];
}
Else
{
Return Mysqli_num_rows ($this->result);
}
}
function Num_fields ($sql = "")
{
if ($sql)
{
$this->query ($sql);
}
Return Mysqli_num_fields ($this->result);
}
function List_fields ($table)
{
$rs = $this->get_all ("SHOW COLUMNS from". $table);
if (! $rs)
{
return false;
}
foreach ($rs as $key = $value)
{
$rslist [] = $value ["Field"];
}
return $rslist;
}
#[Display table name]
function List_tables ()
{
$rs = $this->get_all ("SHOW TABLES");
return $rs;
}
function table_name ($table _list, $i)
{
return $table _list[$i];
}
function escape_string ($char)
{
if (! $char)
{
return false;
}
Return mysqli_escape_string ($this->conn, $char);
}
function Get_version ()
{
Return Mysqli_get_server_info ($this->conn);
}
function time_used ()
{
$time = Explode ("", Microtime ());
$used _time = $time [0] + $time [1];
return $used _time;
}
Query time for MySQL
function Conn_times ()
{
return $this->conn_times + $this->query_times;
}
MySQL Query information
function Conn_count ()
{
return $this->query_count;
}
# Efficient SQL Build query for single-table queries only
function Phpok_one ($tbl, $condition = "", $fields = "*")
{
$sql = "Select". $fields. " From ". $this->db->prefix. $tbl;
if ($condition)
{
$sql. = "WHERE". $condition;
}
return $this->get_one ($sql);
}
function Debug ()
{
if (! $this->querylist | |!is_array ($this->querylist) | | count ($this->querylist) < 1)
{
return false;
}
$html = ' <table cellpadding= ' 0 "cellspacing=" 0 "width=" 100% "bgcolor=" #CECECE "><tr><td>";
$html. = ' <table cellpadding= ' 1 "cellspacing=" 1 "width=" 100% ">";
$html. = ' <tr><th bgcolor= ' #EFEFEF "height=" 30px ">sql</th><th bgcolor=" #EFEFEF "width=" 80px " > Enquiry </th></tr> ';
foreach ($this->querylist as $key = $value)
{
$html. = ' <tr><td bgcolor= ' #FFFFFF "><div style=" Padding:3px;color: #6E6E6E; " > '. $value [' SQL ']. ' </div></td> ';
$html. = ' <td align= ' center ' bgcolor= ' #FFFFFF ' ><div style= ' padding:3px;color: #000000; " > '. $value ["Count"]. ' </div></td></tr> ';
}
$html. = "</table>";
$html. = "</td></tr></table>";
return $html;
}
function Conn_status ()
{
if (! $this->conn) return false;
return true;
}
}
?>