总而言之，我正在修改一个简单的表单来上传照片，将其存储在我的服务器中，然后返回 GPS 坐标。我正在使用标准的 PHP 文件上传脚本和我在这里找到的 GPs 解决方案。它允许我上传文件但不返回 GPS 坐标。任何人都可以帮助确定问题吗？我完整的php是：
<?php
$target_dir = "uploads/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
// Check if image file is a actual image or fake image
if(isset($_POST["submit"])) {
$check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
if($check !== false) {
echo "File is an image - " . $check["mime"] . ".";
$uploadOk = 1;
} else {
echo "File is not an image.";
$uploadOk = 0;
}
}
// Check if file already exists
if (file_exists($target_file)) {
echo "Sorry, file already exists.";
$uploadOk = 0;
}
// Check file size
if ($_FILES["fileToUpload"]["size"] > 5000000000) {
echo "Sorry, your file is too large.";
$uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
&& $imageFileType != "gif" ) {
echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
$uploadOk = 0;
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
echo "Sorry, your file was not uploaded.";
// if everything is ok, try to upload file
} else {
if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
} else {
echo "Sorry, there was an error uploading your file.";
}
}
read_gps_location($target_file);
/**
* Returns an array of latitude and longitude from the Image file
* @param image $file
* @return multitype:number |boolean
*/
function read_gps_location(){
if (is_file($target_file)) {
$info = exif_read_data($target_file);
if (isset($info['GPSLatitude']) && isset($info['GPSLongitude']) &&
isset($info['GPSLatitudeRef']) && isset($info['GPSLongitudeRef']) &&
in_array($info['GPSLatitudeRef'], array('E','W','N','S')) && in_array($info['GPSLongitudeRef'], array('E','W','N','S'))) {
$GPSLatitudeRef = strtolower(trim($info['GPSLatitudeRef']));
$GPSLongitudeRef = strtolower(trim($info['GPSLongitudeRef']));
$lat_degrees_a = explode('/',$info['GPSLatitude'][0]);
$lat_minutes_a = explode('/',$info['GPSLatitude'][1]);
$lat_seconds_a = explode('/',$info['GPSLatitude'][2]);
$lng_degrees_a = explode('/',$info['GPSLongitude'][0]);
$lng_minutes_a = explode('/',$info['GPSLongitude'][1]);
$lng_seconds_a = explode('/',$info['GPSLongitude'][2]);
$lat_degrees = $lat_degrees_a[0] / $lat_degrees_a[1];
$lat_minutes = $lat_minutes_a[0] / $lat_minutes_a[1];
$lat_seconds = $lat_seconds_a[0] / $lat_seconds_a[1];
$lng_degrees = $lng_degrees_a[0] / $lng_degrees_a[1];
$lng_minutes = $lng_minutes_a[0] / $lng_minutes_a[1];
$lng_seconds = $lng_seconds_a[0] / $lng_seconds_a[1];
$lat = (float) $lat_degrees+((($lat_minutes*60)+($lat_seconds))/3600);
$lng = (float) $lng_degrees+((($lng_minutes*60)+($lng_seconds))/3600);
//If the latitude is South, make it negative.
//If the longitude is west, make it negative
$GPSLatitudeRef == 's' ? $lat *= -1 : '';
$GPSLongitudeRef == 'w' ? $lng *= -1 : '';
return array(
'lat' => $lat,
'lng' => $lng
);
}
}
return false;
}
?>