Knihovna php mysql

Jednoduchá knihovna na zpracování dotazů mysql obsažená ve frameworku PHP/Vlašský ořech

<?php
global $__mysql;
   class db extends mysql {
}

class mysql {
  var $error = array();
  var $insertId = NULL;
  private $link;

   function __construct() {
       global $__mysql, $settings;
       
       if($__mysql == NULL) {
           $__mysql = mysql_connect($settings["DB_HOST"],$settings["DB_USER"],$settings["DB_PASS"]);
           if(!$__mysql) die("{$settings["DB_HOST"]} not found");
           mysql_query("SET CHARACTER SET utf8",$__mysql);
           mysql_query("SET NAMES utf8",$__mysql);
           mysql_select_db($settings["DB_NAME"],$__mysql);
       }
       $this->link = $__mysql;
       
       $this->functionArray = array("NOW()");
   }

   function insert($table,$data) {
       
       if(!is_array($data) || empty($table)) {
           return "NOT_DATA";
       }
       
       foreach($data as $key => $col) {
           if(in_array($col,$this->functionArray))
               $set[] = "`{$key}`={$col}" ;
           else {
               $col = mysql_real_escape_string($col);
               $set[] = "`{$key}`='{$col}'" ;
           }
       }
 
       $query = "INSERT INTO `{$table}` SET ".implode(", ",$set);
 
       $this->query($query);
 
       $this->insertId = mysql_insert_id();
 
       return $this->insertId;
   }

   function query($query) {
       $this->query[]=$query;
 
       $result = mysql_query($query,$this->link);
       $this->lastInsertId = mysql_insert_id();
       $error = mysql_error();
         
       if($error!=NULL) {
           $this->error[] = $error;
           $this->log();
           return false;
       }
 
       return $result;
   }

   function log(){
       echo "MySQL Error: ".end($this->error)."\n";
   }

   function lastInsertId() {
       return $this->lastInsertId;
   }

   function update($table, $data, $where = NULL,$limit=1) {
 
       foreach($data as $key => $col) {
           if(in_array($col,$this->functionArray))
               $set[] = "`{$key}`={$col}" ;
           else {
               $col = mysql_real_escape_string($col);
               $set[] = "`{$key}`='{$col}'" ;
           }
       }
 
       if($where != NULL){
           $sql = "UPDATE `{$table}` SET ".implode(", ",$set)." WHERE {$where} LIMIT {$limit}";
       } else {
           $sql = "UPDATE `{$table}` SET ".implode(", ",$set)." ";
       }
  
       return $this->query($sql);
   }

   function queryArray($query, $number = NULL) {
 
       $result = $this->query($query);
       
       if($result) {
           while($row = mysql_fetch_object($result)) {
               $data[] = array_map("stripslashes",(array) $row);
           }
       }
       
       if($number!=NULL)
           return $data[$number-1];
       else
           return $data;
  
   }

   function queryObject($query, $number = NULL) {
 
       $result = $this->query($query);
       $data = array();
       if($result) {
           while($row = mysql_fetch_object($result)) {
               $data[] = array_map("stripslashes",$row);
           }
       }
       if($number!=NULL)
           return $data[$number-1];
       else
           return $data;
 
   }
 

/* ziskání všech řádků z databáze */

     function fetchAll($query) {
        return $this->queryArray($query);
     }

/* získání prvního řádku z databáze */

     function fetchOne($query) {
         return $this->queryArray($query, 1);
     }

}
?>