Question

我的代码发生了错误。我不知道为什么会发生，我无法获得受影响的行数。我的tbl_item_events中有200条记录。为避免冗余记录，我实现了一个简单的代码来避免这种情况。但它不起作用。始终$count=0为$count为零。

<?php

//class Database
class Database
{
private $username;
private $pass;
private $server;
private $database;


public function __construct(){

    $this->username='root';
    $this->pass='';
    $this->server='localhost';
    $this->database='my_db';
    $this->initial_db();

}

public function initial_db(){

    $con = mysql_connect($this->server, $this->username, $this->pass) or die( 'unable to connect to database');
    $db=mysql_select_db($this->database, $con);
    if(!$db)
    die('unable to select db');
}

public function insert($row){

    for($i=0;$i<count($row);$i++){

         $status = 2;
         $remoteAddr = 0;
         $query = "INSERT INTO tbl_item_events SET publish_date = '".date("Y-m-d H:i:s")."', approved_date = '".date("Y-m-d H:i:s")."', user_id = '300'";
         $query.= ",  creation_date='".date("Y-m-d H:i:s")."', status= '".$status."', ip_address ='".$remoteAddr."'";

            foreach($row[$i] as $key => $value)
            {
                $query.=", ".$key."='".$value."' ";
            }

            if($this->avoid_redundace($row[$i]['title']))       
           $result= mysql_query($query);


    }


}

public function avoid_redundace($title){

$query='SELECT title FROM tbl_item_events WHERE title="'.$title.'"'; 
$result= mysql_query($query);
$count=mysql_num_rows($result);
if($count>0)
    return FALSE;
    return TRUE;

   }

}
?>

无法计算mysql

0 个答案: