_php Instance of PHP database class

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Very useful PHP database class, three or four code to handle a table operation, no matter how complex the table field.
Such a large number of times used in large-scale Web site program development, the effect is particularly good.
Author: fast Knife Prodigal + +
Define ("_php_record_\", \ "Exists\");
Class Trecord
{
var $db;
var $RC;
var $name;
var $value;
var $num;
var $buffer; Query results Call method $buffer [$i][\ "fields\"];
var $seekstr; Save query conditions with
function Trecord ($host =\ "localhost\", $user =\ "root\", $passwd =\ "\")
{Global $HTTP _post_vars;
$this->num=0;
$this->host= $host;
$this->user= $user;
$this->passwd= $passwd;
if (($this->db=mysql_connect ($host, $user, $passwd)) ==false)
Exit (\ "Join database error!\");
while (List ($this->name[$this->num], $this->value[$this->num]) =each ($HTTP _post_vars))
{$this->num++;
}
//////////////
For ($i =0 $i < $this->num; $i + +)
{$this->value[$i]= $this->safestring ($this->value[$i]);
}
//
}
function safestring ($message)
{$message =str_replace (\ "\" \ "\", $message);
$message =str_replace ("<\", "<\", $message);
$message =str_replace (">\", ">\", $message);
$message =str_replace ("|\", "|\", $message);
$message =str_replace (\ "\" \ ", \" "\", $message);
$message =nl2br ($message);
return $message;
}
//////
function Reset ()
{$this->num=0;
$this->name=array ();
$this->value=array ();
}
function Add ($name, $values)
{$this->name[$this->num]= $name;
$this->value[$this->num]= $values;
$this->num++;
}
function Unadd ($name)
{$j = 0;
For ($i =0 $i < $this->num; $i + +)
{if ($this->name[$i]!= $name)
{$aaa [$j]= $this->name[$i];
$bbb [$j]= $this->value[$i];
$j + +;
}
}
$this->name= $aaa;
$this->value= $bbb;
$this->num= $j;
}
function Insertrecord ($database, $table)
{mysql_select_db ($database);
if ($this->num==0)
Exit (\) does not have a variable defined! \");
$field =implode (\ ", \", $this->name);
For ($i =0 $i < $this->num; $i + +)
{if (is_string ($this->value[$i]))
$ls [$i]=\ "\" $this->value[$i].\ "\";
Else
$ls [$i]= $this->value[$i];
$value =implode (\ ", \", $ls);
}
$sql =sprintf (\ Insert into%s (%s) values (%s) \, $table, $field, $value);
if (mysql_query ($sql, $this->db) ==false)
{echo \ "Error writing data to database: \". $sql;
Exit ();
}
}
function Selectrecord ($database, $table)//Returns the number of records, resulting in a buffer
{mysql_select_db ($database);
if ($this->num==0)
$sql =sprintf (\ "SELECT * from%s\", $table);
Else
{
For ($i =0 $i < $this->num; $i + +)
{if (is_string ($this->value[$i]))
$ls [$i]=\ "\" $this->value[$i].\ "\";
Else
$ls [$i]= $this->value[$i];
$str [$i]=sprintf (\ "%s=%s\", $this->name[$i], $ls [$i]);
}
$string =implode (\ "and \", $STR);
$this->seekstr= $string;
$sql =sprintf (\ "SELECT * from%s where%s\", $table, $string);
}
if ($RC =mysql_query ($sql, $this->db)) ==false)
{echo \ "error querying database: \". $sql;
Exit ();
}
$i = 0;
while ($this->buffer[$i]=mysql_fetch_array ($RC))
{
$i + +;
}
Mysql_free_result ($RC);
return $i;
}
function UpdateRecord ($database, $table, $LIMITSTR)
{mysql_select_db ($database);
if ($this->num==0)
Exit (\) does not have a variable defined! \");
For ($i =0 $i < $this->num; $i + +)
{if (is_string ($this->value[$i]))
$ls [$i]=\ "\" $this->value[$i].\ "\";
Else
$ls [$i]= $this->value[$i];
$upstr [$i]= $this->name[$i].\ "=\". $ls [$i];
}
$str =implode (\ ", \", $UPSTR);
$sql =sprintf (\ "Update%s set%s where%s\", $table, $str, $LIMITSTR);
if (mysql_query ($sql, $this->db) ==false)
{echo \ ' error modifying data: \ '. $sql;
Exit ();
}
}
function Addtip ($database, $table, $fileds, $limitstr =\ "\")
{//Must be an integral field
mysql_select_db ($database);
if ($limitstr!=\ "\")
$sql =sprintf (\ "Update%s set%s=%s+1 where%s\", $table, $fileds, $fileds, $LIMITSTR);
Else
$sql =sprintf (\ "Update%s set%s=%s+1\", $table, $fileds, $fileds);
if (mysql_query ($sql, $this->db) ==false)
{echo \ ' error modifying data: \ '. $sql;
Exit ();
}
}
function Unaddtip ($database, $table, $fileds, $limitstr =\ "\")
{
mysql_select_db ($database);
if ($limitstr!=\ "\")
$sql =sprintf (\ "Update%s set%s=%s-1 where%s\", $table, $fileds, $fileds, $LIMITSTR);
Else
$sql =sprintf (\ "Update%s set%s=%s-1\", $table, $fileds, $fileds);
if (mysql_query ($sql, $this->db) ==false)
{echo \ ' error modifying data: \ '. $sql;
Exit ();
}
}
Function IsEmpty ($var, $china)
{if (Trim ($var) ==\ "\")
{
$reason =\ "not input" \ "$china. \" "!\";
Exit ($reason);
}
}
function GetResult ()
{return $this->buffer;
}
function Close ()
{
Mysql_close ($this->db);
}
}
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