exif上傳圖片與移動設備上的PHP剝離GPS頭？

Question

我有一個腳本來上傳照片到用PHP編寫的網站。當我在iPhone上使用Safari上傳圖片時，當檢查exif數據時，某些標題似乎被剝離。當我從我的iPhone上拍攝完全相同的照片並通過電子郵件發送給我自己並從計算機上傳時，所有exif數據都在那裏。

我想知道是否有一個iPhone或PHP腳本的設置，我錯過了，當我嘗試從我的iPhone上傳時，會讓我抓住exif的GPS部分。我想要的是當我通過iPhone上傳圖片到我的網站時，從exif_read_data獲取GPS數組。

一個的Exif例如從我的iPhone上的Safari：

Image type is: JPEG 

FILE.FileName: 20130417141031image.jpg 
FILE.FileDateTime: 1366225831 
FILE.FileSize: 1692449 
FILE.FileType: 2 
FILE.MimeType: image/jpeg 
FILE.SectionsFound: ANY_TAG, IFD0, EXIF 
COMPUTED.html: width="3264" height="2448" 
COMPUTED.Height: 2448 
COMPUTED.Width: 3264 
COMPUTED.IsColor: 1 
COMPUTED.ByteOrderMotorola: 1 
IFD0.Orientation: 6 
IFD0.Exif_IFD_Pointer: 38 
EXIF.ColorSpace: 1 
EXIF.ExifImageWidth: 3264 
EXIF.ExifImageLength: 2448 

由同一手機拍攝的我的電腦上傳同一圖像的

一個的Exif例如：

Image type is: JPEG 

FILE.FileName: 20130417142504image.jpeg 
FILE.FileDateTime: 1366226835 
FILE.FileSize: 1744896 
FILE.FileType: 2 
FILE.MimeType: image/jpeg 
FILE.SectionsFound: ANY_TAG, IFD0, THUMBNAIL, EXIF, GPS 
COMPUTED.html: width="3264" height="2448" 
COMPUTED.Height: 2448 
COMPUTED.Width: 3264 
COMPUTED.IsColor: 1 
COMPUTED.ByteOrderMotorola: 1 
COMPUTED.ApertureFNumber: f/2.4 
COMPUTED.Thumbnail.FileType: 2 
COMPUTED.Thumbnail.MimeType: image/jpeg 
IFD0.Make: Apple 
IFD0.Model: iPhone 4S 
IFD0.Orientation: 6 
IFD0.XResolution: 72/1 
IFD0.YResolution: 72/1 
IFD0.ResolutionUnit: 2 
IFD0.Software: 6.1.3 
IFD0.DateTime: 2013:04:17 15:13:39 
IFD0.YCbCrPositioning: 1 
IFD0.Exif_IFD_Pointer: 204 
IFD0.GPS_IFD_Pointer: 594 
THUMBNAIL.Compression: 6 
THUMBNAIL.XResolution: 72/1 
THUMBNAIL.YResolution: 72/1 
THUMBNAIL.ResolutionUnit: 2 
THUMBNAIL.JPEGInterchangeFormat: 890 
THUMBNAIL.JPEGInterchangeFormatLength: 7684 
EXIF.ExposureTime: 1/20 
EXIF.FNumber: 12/5 
EXIF.ExposureProgram: 2 
EXIF.ISOSpeedRatings: 50 
EXIF.ExifVersion: 0221 
EXIF.DateTimeOriginal: 2013:04:17 15:13:39 
EXIF.DateTimeDigitized: 2013:04:17 15:13:39 
EXIF.ComponentsConfiguration: 
EXIF.ShutterSpeedValue: 2779/643 
EXIF.ApertureValue: 4845/1918 
EXIF.BrightnessValue: 13523/4727 
EXIF.MeteringMode: 3 
EXIF.Flash: 16 
EXIF.FocalLength: 107/25 
EXIF.SubjectLocation: Array 
EXIF.FlashPixVersion: 0100 
EXIF.ColorSpace: 1 
EXIF.ExifImageWidth: 3264 
EXIF.ExifImageLength: 2448 
EXIF.SensingMethod: 2 
EXIF.ExposureMode: 0 
EXIF.WhiteBalance: 0 
EXIF.FocalLengthIn35mmFilm: 35 
EXIF.SceneCaptureType: 0 
GPS.GPSLatitudeRef: N 
GPS.GPSLatitude: Array 
GPS.GPSLongitudeRef: W 
GPS.GPSLongitude: Array 
GPS.GPSAltitudeRef: 
GPS.GPSAltitude: 55556/297 
GPS.GPSTimeStamp: Array 
GPS.GPSImgDirectionRef: T 
GPS.GPSImgDirection: 19688/145 

下面是代碼，我使用我的PHP腳本的照片，我刪除了標題，並要求：

<?php 
require('[...]'); 
mysql_select_db($db_name, $oConn); 

$JobNum = $_POST['JobNum']; 

if ((($_FILES["file"]["type"] == "image/gif") 
    || ($_FILES["file"]["type"] == "image/jpeg") 
    || ($_FILES["file"]["type"] == "image/pjpeg")) 
    && ($_FILES["file"]["size"] < 10000000)) 
{ 
    if ($_FILES["file"]["error"] > 0) 
    { 
     ps_log("Bad Photo Upload - Return Code: " . $_FILES["file"]["error"]); 
    } 
    else 
    { 
     ps_log("Upload: " . $_FILES["file"]["name"]); 
     ps_log("Type: " . $_FILES["file"]["type"]); 
     ps_log("Size: " . ($_FILES["file"]["size"]/1024) . " Kb"); 
     ps_log("Temp file: " . $_FILES["file"]["tmp_name"] . "<br />"); 

     $photoname = $_FILES['file']['tmp_name']; 
     $root = "[...]"; 
     $location = $_SERVER['DOCUMENT_ROOT'].$root.$photoname; 
     $exif = exif_read_data($photoname, 0, true); 

     $filename = $exif["FILE"]["FileName"]; 
     $model = $exif["IFD0"]["Model"]; 
     $date = $exif["IFD0"]["DateTime"]; 
     $lon = $exif["GPS"]["GPSLongitude"]; 
     $lonref = $exif["GPS"]['GPSLongitudeRef']; 
     $lat = $exif["GPS"]["GPSLatitude"]; 
     $latref = $exif["GPS"]['GPSLatitudeRef']; 


     $lon = Photos::getGps($lon, $lonref); 
     $lat = Photos::getGps($lat, $latref); 

     $photo = new UploadedPhoto(); 
     $photo->JobNum = $JobNum; 
     $photo->TempFile = $_FILES["file"]["tmp_name"]; 
     $photo->FileName = $_FILES["file"]["name"]; 
     $photo->Comments = $_POST['Comment']; 
      $photo->Model = $model ; 
    $photo->DateStamp = $date ; 
    $photo->Lat = $lat ; 
    $photo->Lng = $lon ; 
     $photo->SaveGeo(); 
    } 
} 
else 
{ 
    echo "Invalid file"; 
} 

header("[...]");?> 

Answer 1

只有你可以做的事情是c創建一個本地應用程序（或Apache Cordova應用程序），它將處理上傳。 GPS數據被移動Safari剝離。您的應用應該按原樣上傳照片。到目前爲止，沒有其他辦法。

這可能是沿着這些路線的東西：http://gonzalo123.com/2013/10/28/taking-photos-with-a-phonegapcordova-application-and-uploading-them-to-the-server/