Question

我正在尝试创建一个用户可以上传和更新其个人资料图片的个人资料页面。我已经有一个功能图像上传器，但它没有与我的数据库连接。所以每当我上传＆amp;刷新，图像重置。我想知道如何连接我的数据库并将上传的图像（或它的目的地）存储在我的数据库中。

HTML表格：

        <div class="pic"><div id="imgContainer">
  <form enctype="multipart/form-data" action="image_upload_demo_submit.php" method="post" name="image_upload_form" id="image_upload_form">
    <div id="imgArea"><img src="./img/default.jpg">
      <div class="progressBar">
        <div class="bar"></div>
        <div class="percent">0%</div>
      </div>
      <div id="imgChange"><span>Change Photo</span>
        <input type="file" accept="image/*" name="image_upload_file" id="image_upload_file">
      </div>
    </div>
  </form>
</div></div>

Submit.php：

<?php
include('./functions.php');
/*defined settings - start*/
ini_set("memory_limit", "99M");
ini_set('post_max_size', '20M');
ini_set('max_execution_time', 600);
define('IMAGE_SMALL_DIR', './uploades/small/');
define('IMAGE_SMALL_SIZE', 50);
define('IMAGE_MEDIUM_DIR', './uploades/medium/');
define('IMAGE_MEDIUM_SIZE', 250);
/*defined settings - end*/

if(isset($_FILES['image_upload_file'])){
    $output['status']=FALSE;
    set_time_limit(0);
    $allowedImageType = array("image/gif",   "image/jpeg",   "image/pjpeg",   "image/png",   "image/x-png"  );

    if ($_FILES['image_upload_file']["error"] > 0) {
        $output['error']= "Error in File";
    }
    elseif (!in_array($_FILES['image_upload_file']["type"], $allowedImageType)) {
        $output['error']= "You can only upload JPG, PNG and GIF file";
    }
    elseif (round($_FILES['image_upload_file']["size"] / 1024) > 4096) {
        $output['error']= "You can upload file size up to 4 MB";
    } else {
        /*create directory with 777 permission if not exist - start*/
        createDir(IMAGE_SMALL_DIR);
        createDir(IMAGE_MEDIUM_DIR);
        /*create directory with 777 permission if not exist - end*/
        $path[0] = $_FILES['image_upload_file']['tmp_name'];
        $file = pathinfo($_FILES['image_upload_file']['name']);
        $fileType = $file["extension"];
        $desiredExt='jpg';
        $fileNameNew = rand(333, 999) . time() . ".$desiredExt";
        $path[1] = IMAGE_MEDIUM_DIR . $fileNameNew;
        $path[2] = IMAGE_SMALL_DIR . $fileNameNew;

        if (createThumb($path[0], $path[1], $fileType, IMAGE_MEDIUM_SIZE, IMAGE_MEDIUM_SIZE,IMAGE_MEDIUM_SIZE)) {

            if (createThumb($path[1], $path[2],"$desiredExt", IMAGE_SMALL_SIZE, IMAGE_SMALL_SIZE,IMAGE_SMALL_SIZE)) {
                $output['status']=TRUE;
                $output['image_medium']= $path[1];
                $output['image_small']= $path[2];
            }
        }
    }
    echo json_encode($output);
}
?>

的functions.php：

<?php
function createDir($path){      
    if (!file_exists($path)) {
        $old_mask = umask(0);
        mkdir($path, 0777, TRUE);
        umask($old_mask);
    }
}

function createThumb($path1, $path2, $file_type, $new_w, $new_h, $squareSize = ''){
    /* read the source image */
    $source_image = FALSE;

    if (preg_match("/jpg|JPG|jpeg|JPEG/", $file_type)) {
        $source_image = imagecreatefromjpeg($path1);
    }
    elseif (preg_match("/png|PNG/", $file_type)) {

        if (!$source_image = @imagecreatefrompng($path1)) {
            $source_image = imagecreatefromjpeg($path1);
        }
    }
    elseif (preg_match("/gif|GIF/", $file_type)) {
        $source_image = imagecreatefromgif($path1);
    }       
    if ($source_image == FALSE) {
        $source_image = imagecreatefromjpeg($path1);
    }

    $orig_w = imageSX($source_image);
    $orig_h = imageSY($source_image);

    if ($orig_w < $new_w && $orig_h < $new_h) {
        $desired_width = $orig_w;
        $desired_height = $orig_h;
    } else {
        $scale = min($new_w / $orig_w, $new_h / $orig_h);
        $desired_width = ceil($scale * $orig_w);
        $desired_height = ceil($scale * $orig_h);
    }

    if ($squareSize != '') {
        $desired_width = $desired_height = $squareSize;
    }

    /* create a new, "virtual" image */
    $virtual_image = imagecreatetruecolor($desired_width, $desired_height);
    // for PNG background white----------->
    $kek = imagecolorallocate($virtual_image, 255, 255, 255);
    imagefill($virtual_image, 0, 0, $kek);

    if ($squareSize == '') {
        /* copy source image at a resized size */
        imagecopyresampled($virtual_image, $source_image, 0, 0, 0, 0, $desired_width, $desired_height, $orig_w, $orig_h);
    } else {
        $wm = $orig_w / $squareSize;
        $hm = $orig_h / $squareSize;
        $h_height = $squareSize / 2;
        $w_height = $squareSize / 2;

        if ($orig_w > $orig_h) {
            $adjusted_width = $orig_w / $hm;
            $half_width = $adjusted_width / 2;
            $int_width = $half_width - $w_height;
            imagecopyresampled($virtual_image, $source_image, -$int_width, 0, 0, 0, $adjusted_width, $squareSize, $orig_w, $orig_h);
        }

        elseif (($orig_w <= $orig_h)) {
            $adjusted_height = $orig_h / $wm;
            $half_height = $adjusted_height / 2;
            imagecopyresampled($virtual_image, $source_image, 0,0, 0, 0, $squareSize, $adjusted_height, $orig_w, $orig_h);
        } else {
            imagecopyresampled($virtual_image, $source_image, 0, 0, 0, 0, $squareSize, $squareSize, $orig_w, $orig_h);
        }
    }

    if (@imagejpeg($virtual_image, $path2, 90)) {
        imagedestroy($virtual_image);
        imagedestroy($source_image);
        return TRUE;
    } else {
        return FALSE;
    }
}   
?>

我如何连接＆amp;存储每个用户的上传图像。我需要创建一个单独的PHP文件吗？非常感谢帮助。

Answer 1

您需要将上传的文件路径插入数据库，当您想要显示图像时，只需从数据库中检索文件路径并将其添加到标记的src属性中。

评论后更新
我不知道您的数据库架构，但这是根据您的代码的一般UPDATE查询。

您必须在 Submit.php 后执行以下查询

$output['status']=TRUE;
$output['image_medium']= $path[1];
$output['image_small']= $path[2];

根据您的实际数据更改查询。

UPDATE table_name
SET medium_image = $path[1], small_image = $path[2]
WHERE user_id = provide_user_id_here

如何将我的图像上传器与MySQL数据库连接？

1 个答案: