因此，我正在创建一个响应式网站，可以选择将图像上传到页面。 php 脚本基本上调整图像大小并将缩略图文件路径存储在数据库中。原始图像和缩略图也存储在网站文件夹中。我正在使用 GD 库。
不管怎样，我只是在测试从我的 iPhone 上传照片到网站。它确实上传图像。然而，它有两个问题。
- 上传照片需要很长时间。
- 照片上传完成后是横向的。如果照片是肖像照片，则会以风景形式上传。诡异的。
谁能帮我解决这两个问题吗？
更新代码
if (isset($_FILES['image'])) {
if (empty($_FILES['image']['name'])) {
?><div class="add-errors">Please choose an image!</div><?php
} else {
function getOrientedImage($imagePath){
$image = imagecreatefromstring(file_get_contents($imagePath));
$exif = exif_read_data($imagePath);
if(!empty($exif['Orientation'])) {
switch($exif['Orientation']) {
case 8:
$image = imagerotate($image,90,0);
break;
case 3:
$image = imagerotate($image,180,0);
break;
case 6:
$image = imagerotate($image,-90,0);
break;
}
}
return $image;
}
$name = $_FILES['image']['name'];
$temp = $_FILES['image']['tmp_name'];
$type = $_FILES['image']['type'];
$size = $_FILES['image']['size'];
$ext = strtolower(end(explode('.', $name)));
$size2 = getimagesize($temp);
$width = $size2[0];
$height = $size2[1];
$upload = md5( rand( 0, 1000 ) . rand( 0, 1000 ) . rand( 0, 1000 ) . rand( 0, 1000 ));
// Restrictions for uploading
$maxwidth = 6000;
$maxheight = 6000;
$allowed = array('image/jpeg', 'image/jpg', 'image/png', 'image/gif');
// Recognizing the extension
switch($type){
// Image/Jpeg
case 'image/jpeg':
$ext= '.jpeg';
break;
// Image/Jpg
case 'image/jpg':
$ext= '.jpg';
break;
// Image/png
case 'image/png':
$ext= '.png';
break;
// Image/gif
case 'image/gif':
$ext= '.gif';
break;
}
// upload variables
$path = $userDir . $upload . $ext;
$thumb_path = $userDir . 'thumb_' . $upload . $ext;
// check if extension is allowed.
if (in_array($type, $allowed)) {
// Checking if the resolution is FULLHD or under this resolution.
if ($width <= $maxwidth && $height <= $maxheight) {
if ($size <= 5242880) {
// check the shape of the image
if ($width == $height) {$shape = 1;}
if ($width > $height) {$shape = 2;}
if ($width < $height) {$shape = 2;}
//Adjusting the resize script on shape.
switch($shape) {
// Code to resize a square image.
case 1:
$newwidth = 690;
$newheight = 690;
break;
// Code to resize a tall image
case 2:
$newwidth = 690;
$ratio = $newwidth / $width;
$newheight = round($height * $ratio);
break;
}
// Resizing according to extension.
switch ($type) {
// Image/Jpeg
case 'image/jpeg';
$img = getOrientedImage($temp);
$thumb = imagecreatetruecolor($newwidth, $newheight);
imagecopyresized($thumb, $img, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
imagejpeg($thumb, $thumb_path);
break;
// Image/Jpg
case 'image/jpg';
$img = getOrientedImage($temp);
$thumb = imagecreatetruecolor($newwidth, $newheight);
imagecopyresized($thumb, $img, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
imagejpeg($thumb, $thumb_path);
break;
// Image/png
case 'image/png';
$img = getOrientedImage($temp);
$thumb = imagecreatetruecolor($newwidth, $newheight);
imagecopyresized($thumb, $img, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
imagepng($thumb, $thumb_path);
break;
// Image/gif
case 'image/gif';
$img = getOrientedImage($temp);
$thumb = imagecreatetruecolor($newwidth, $newheight);
imagecopyresized($thumb, $img, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
imagegif($thumb, $thumb_path);
break;
}
// Move the original file aswell.
move_uploaded_file($temp, $path);
} else {
?><div class="add-errors">Your image size is too big!</div><?php
}
} else {
?><div class="add-errors">Your image resolution exceeds the limit!</div><?php
}
} else {
?><div class="add-errors">Your have uploaded a forbidden extension!</div><?php
}
}
}
