不确定到底发生了什么？但是，如果我有一个较大的图片上传（肖像）风格，然后它裁剪它，然后旋转它？我错过了什么有一个max_width并让比率完成其余的会很好吗？提前致谢。
<?php
function uploadImage($fileName, $maxSize, $maxW, $fullPath, $relPath, $colorR, $colorG, $colorB, $maxH = null){
$folder = $relPath;
$maxlimit = $maxSize;
$allowed_ext = "jpg,jpeg";
$match = "";
$filesize = $_FILES[$fileName]['size'];
if($filesize > 0){
$filename = strtolower($_FILES[$fileName]['name']);
$filename = preg_replace('/\s/', '_', $filename);
if($filesize < 1){
$errorList[] = "File size is empty or too big";
}
if($filesize > $maxlimit){
$errorList[] = "File size is too big.";
}
if(count($errorList)<1){
$file_ext = preg_split("/\./",$filename);
$allowed_ext = preg_split("/\,/",$allowed_ext);
foreach($allowed_ext as $ext){
if($ext==end($file_ext)){
$match = "1"; // File is allowed
$NUM = time();
$front_name = substr($file_ext[0], 0, 15);
$newfilename = $front_name."_".$NUM.".".end($file_ext);
$filetype = end($file_ext);
$save = $folder.$newfilename;
if(!file_exists($save)){
list($width_orig, $height_orig) = getimagesize($_FILES[$fileName]['tmp_name']);
if($maxH == null){
if($width_orig < $maxW){
$fwidth = $width_orig;
}else{
$fwidth = $maxW;
}
$ratio_orig = $width_orig/$height_orig;
$fheight = $fwidth/$ratio_orig;
$blank_height = $fheight;
$top_offset = 0;
}else{
if($width_orig <= $maxW && $height_orig <= $maxH){
$fheight = $height_orig;
$fwidth = $width_orig;
}else{
if($width_orig > $maxW){
$ratio = ($width_orig / $maxW);
$fwidth = $maxW;
$fheight = ($height_orig / $ratio);
if($fheight > $maxH){
$ratio = ($fheight / $maxH);
$fheight = $maxH;
$fwidth = ($fwidth / $ratio);
}
}
if($height_orig > $maxH){
$ratio = ($height_orig / $maxH);
$fheight = $maxH;
$fwidth = ($width_orig / $ratio);
if($fwidth > $maxW){
$ratio = ($fwidth / $maxW);
$fwidth = $maxW;
$fheight = ($fheight / $ratio);
}
}
}
if($fheight == 0 || $fwidth == 0 || $height_orig == 0 || $width_orig == 0){
die("FATAL ERROR REPORT ERROR CODE [add-pic-line-67-orig] to <a href='http://www.atwebresults.com'>AT WEB RESULTS</a>");
}
if($fheight < 45){
$blank_height = 45;
$top_offset = round(($blank_height - $fheight)/2);
}else{
$blank_height = $fheight;
}
}
$image_p = imagecreatetruecolor($fwidth, $blank_height);
$white = imagecolorallocate($image_p, $colorR, $colorG, $colorB);
imagefill($image_p, 0, 0, $white);
switch($filetype){
case "gif":
$image = @imagecreatefromgif($_FILES[$fileName]['tmp_name']);
break;
case "jpg":
$image = @imagecreatefromjpeg($_FILES[$fileName]['tmp_name']);
break;
case "jpeg":
$image = @imagecreatefromjpeg($_FILES[$fileName]['tmp_name']);
break;
case "png":
$image = @imagecreatefrompng($_FILES[$fileName]['tmp_name']);
break;
}
@imagecopyresampled($image_p, $image, 0, $top_offset, 0, 0, $fwidth, $fheight, $width_orig, $height_orig);
switch($filetype){
case "gif":
if(!@imagegif($image_p, $save)){
$errorList[]= "PERMISSION DENIED [GIF]";
}
break;
case "jpg":
if(!@imagejpeg($image_p, $save, 100)){
$errorList[]= "PERMISSION DENIED [JPG]";
}
break;
case "jpeg":
if(!@imagejpeg($image_p, $save, 100)){
$errorList[]= "PERMISSION DENIED [JPEG]";
}
break;
case "png":
if(!@imagepng($image_p, $save, 0)){
$errorList[]= "PERMISSION DENIED [PNG]";
}
break;
}
@imagedestroy($filename);
}else{
$errorList[]= "CANNOT MAKE IMAGE IT ALREADY EXISTS";
}
}
}
}
}else{
$errorList[]= "NO FILE SELECTED";
}
if(!$match){
$errorList[]= "File type isn't allowed (ONLY JPG or JPEG) : $filename";
}
if(sizeof($errorList) == 0){
return $fullPath.$newfilename;
}else{
$eMessage = array();
for ($x=0; $x<sizeof($errorList); $x++){
$eMessage[] = $errorList[$x];
}
return $eMessage;
}
}
$filename = strip_tags($_REQUEST['filename']);
$maxSize = strip_tags($_REQUEST['maxSize']);
$maxW = strip_tags($_REQUEST['maxW']);
$fullPath = strip_tags($_REQUEST['fullPath']);
$relPath = strip_tags($_REQUEST['relPath']);
$colorR = strip_tags($_REQUEST['colorR']);
$colorG = strip_tags($_REQUEST['colorG']);
$colorB = strip_tags($_REQUEST['colorB']);
$maxH = strip_tags($_REQUEST['maxH']);
$filesize_image = $_FILES[$filename]['size'];
if($filesize_image > 0){
$upload_image = uploadImage($filename, $maxSize, $maxW, $fullPath, $relPath, $colorR, $colorG, $colorB, $maxH);
if(is_array($upload_image)){
foreach($upload_image as $key => $value) {
if($value == "-ERROR-") {
unset($upload_image[$key]);
}
}
$document = array_values($upload_image);
for ($x=0; $x<sizeof($document); $x++){
$errorList[] = $document[$x];
}
$imgUploaded = false;
}else{
$imgUploaded = true;
}
}else{
$imgUploaded = false;
$errorList[] = "File Size Empty";
}
?>
<?php
if($imgUploaded){
echo '<img src="/eb_admin/images/success.gif" width="16" height="16" border="0" style="margin-bottom: -4px;" /> Success!<br /><img src="'.$upload_image.'" border="0" /><input type="hidden" name="full_story" value="'.$upload_image.'" />';
}else{
echo '<img src="/eb_admin/images/error.gif" width="16" height="16px" border="0" style="margin-bottom: -3px;" /> Error(s) Found: ';
foreach($errorList as $value){
echo $value.', ';
}
}
?>
答案 0 :(得分：0)
检查您上传的图片是否正确定位。不要只看嵌入式缩略图，它可能是错误的方向。某些图像也可以在内部设置旋转标记，因此它们可以正常显示，但实际上是以旋转格式存储的。 GD将从原始图片数据中删除并忽略此类标记。
否则，您的代码看起来没有任何明显错误。但是，我会将getimagesize()调用放在resize块之外，使其成为初始错误检查的一部分。现在你假设可以读取/加载图像。如果无法读取图像，getimagesize将返回false，您可以稍后保存自己的工作。
随后评论：
在这附近：
if($filesize > $maxlimit){
$errorList[] = "File size is too big.";
}
// put it here
list($width_orig, $height_orig) = getimagesize($_FILES[$fileName]['tmp_name']);
// additional error check
if ($width === FALSE) {
$errorList[] = "Could not read image";
}
if(count($errorList)<1){
etc...
// and when it comes time to actually use the width_orig/height_orig later in this
// block, they're already set from the earlier getimagesize() call