将图片网址保存到Mysql数据库 [英] Save image url to Mysql Database

问题描述

我有一个名为"mysqlproject"的数据库，其中包含两个表.我感兴趣的表之一就是标记，并在数据库中这样声明:

I have a database named 'mysqlproject' that contains two tables. One of the tables that i am interesting in is named markers and declared in database like this :

CREATE TABLE IF NOT EXISTS `markers` (
`id` int(11) NOT NULL,
`TitleEvent` varchar(60) NOT NULL,
`Description` varchar(80) NOT NULL,
`lat` float(10,6) NOT NULL,
`lng` float(10,6) NOT NULL,
`type` varchar(255) NOT NULL,
`status` varchar(30) NOT NULL,
`EventUserName` varchar(60) NOT NULL,
`PhotosEvent` varchar(255) NOT NULL
) ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=73 ;

其中一列是PhotosEvent，我要在其中保存照片的网址.因此，我通过javascript文件捕获了照片，并将其通过ajax发送到php文件"camera.php"

One of the columns is PhotosEventthat in there i want to save photo's url. So i capture a photo through a javascript file and i am sending it through ajax to a php file "camera.php"

ajax发送过程为:

The ajax sending procedure is:

$.ajax({
        type: "POST",
        url: "camera.php",
        data: { 
        imgBase64: dataURL
              }
        }).done(function( respond ) {
          // you will get back the temp file name
          // or "Unable to save this image."
          console.log(respond);
        });

因此，我正在使用POST方法将图像发送到文件"camera.php".在php文件中，我正在获取该图像并将其首先保存在我的本地服务器"中的"EventImages"文件夹中.好吧.. 但是我只想将图像的URL保存在"PhotosEvent"字段中的数据库中，而仅保存在活动ID所在的原始位置.

So i am sending with method POST the image to the file "camera.php". In php file i am taking that image and saving it first in my "local server" in folder "EventImages". Ok that works .. But i want to save the url of the image in database in the field "PhotosEvent" only in raw where the active id is located..

连接数据库:

$connection = mysql_connect('localhost', 'root', '');
if (!$connection) //Success $Connection with server returns 1
{
die("Database Connection Failed" . mysql_error());
}
else
{
//Connection with server established
}

// Try Connection with mysql Database
$select_db = mysql_select_db('mysqlproject');
if (!$select_db) //Success $Connection with Database returns 1
{
die("Database Selection Failed" . mysql_error());
}
else
{
//Connection with Database established   
}

将图像以.png格式保存到文件夹(有效)，并尝试将url保存到数据库中(无效):

Save image to folder as .png (works) and attemp saving url to database (don't work):

if ( isset($_POST["imgBase64"]) && !empty($_POST["imgBase64"]) ) {    

define('UPLOAD_DIR', 'EventImages/');

// get the dataURL
$dataURL = $_POST["imgBase64"];  

// the dataURL has a prefix (mimetype+datatype) 
// that we don't want, so strip that prefix off
$parts = explode(',', $dataURL);  
$data = $parts[1];  

// Decode base64 data, resulting in an image
$data = base64_decode($data);  

// create a temporary unique file name
$file = UPLOAD_DIR . uniqid() . '.png';

// write the file to the upload directory
$success = file_put_contents($file, $data);

// return the temp file name (success)
// or return an error message just to frustrate the user (kidding!)
print $success ? $file : 'Unable to save this image.';

 $results = mysql_query("INSERT INTO markers (PhotosEvent) WHERE id ='".$_SESSION['id']."'VALUES('$dataURL')");
   }

我的问题是保存图像URL-数据库路径.我怎样才能做到这一点?预先感谢..

My problem is saving the image url - path to database. How can i do this? Thanks in advance..

推荐答案

找到了！

define('UPLOAD_DIR', 'EventImages/');
$img = $_POST['imgBase64'];
$img = str_replace('data:image/png;base64,', '', $img);
$img = str_replace(' ', '+', $img);


$data = base64_decode($img);
$file = UPLOAD_DIR . uniqid() . '.png';
$success = file_put_contents($file, $data);
print $success ? $file : 'Unable to save the file.';


$result=mysql_query("SELECT id FROM markers ORDER BY id DESC LIMIT 1");
while ($row = mysql_fetch_array($result)){
$LastInsertID=$row['id'];
}
$results = mysql_query("UPDATE markers SET PhotosEvent='".$file."' WHERE id = '".$LastInsertID."'");    

现在它可以正常工作了..我对表Markers中的最后一个已知ID进行伪造，然后将存储在变量$ file中的图像的url保存在数据库中！！我也像以前一样将图像保存到文件夹EventImages中！

now it works ok.. I am fetcing the last known id that is in table Markers and i save the image's url that is stored in variable $file in the database!! I also save the image to folder EventImages as i did before!!

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