我有以下代码可以从图像中提取和显示 EXIF 信息。
<?
// +++++++++++++++++++++++++ //
// +++++++ GPS EXIF +++++++ //
// +++++++++++++++++++++++++ //
// --- Change the 'image1.jpg' value below to the path of your file. --- //
$Image = 'image1.jpg';
// --- The EXIF read command --- //
$ReadEXIFData = read_exif_data($Image, 0, true);
// +++++++++++++++++ //
// +++ FILE INFO +++ //
// +++++++++++++++++ //
// --- Get the filename --- //
$Filename = $ReadEXIFData['FILE']['FileName'];
// --- Get the file size --- //
$FileSize = $ReadEXIFData['FILE']['FileSize'];
// --- Converts to user-friendly kb, mb and gb sizes --- //
if ($FileSize >= 1024) { $ImageFileSize = number_format($FileSize / 1024, 2).'kb'; }
elseif ($FileSize >= 1048576) { $ImageFileSize = number_format($FileSize / 1048576, 2).'mb'; }
elseif ($FileSize >= 1073741824) { $ImageFileSize = number_format($FileSize / 1073741824, 2).'gb'; }
// --- Get the file height --- //
$FileHeight = $ReadEXIFData['COMPUTED']['Height'].'px';
// --- Get the file height --- //
$FileWidth = $ReadEXIFData['COMPUTED']['Width'].'px';
// +++++++++++++++++++++++ //
// +++ GPS COORDINATES +++ //
// +++++++++++++++++++++++ //
// --- Get GPS hemisphire --- //
$GPSHemisphire = $ReadEXIFData["GPS"]["GPSLatitudeRef"];
// --- Get GPS degrees latitude --- //
$GPSDegreesLat = intval($ReadEXIFData["GPS"]["GPSLatitude"][0]);
// --- Get GPS minutes latitude --- //
$GPSMinutesLat = intval($ReadEXIFData["GPS"]["GPSLatitude"][1]);
// --- Get GPS seconds latitude --- //
$GPSSecondsLat = intval($ReadEXIFData["GPS"]["GPSLatitude"][2]);
// --- Get GPS Hemisphere latitude --- //
$GPSSecondsLat2 = ($ReadEXIFData["GPS"]["GPSLatitudeRef"]);
// --- Decimal Latitude goes here --- //
// --- Get GPS degrees longitude --- //
$GPSDegreesLon = intval($ReadEXIFData["GPS"]["GPSLongitude"][0]);
// --- Get GPS minutes longitude --- //
$GPSMinutesLon = intval($ReadEXIFData["GPS"]["GPSLongitude"][1]);
// --- Get GPS seconds longitude --- //
$GPSSecondsLon = intval($ReadEXIFData["GPS"]["GPSLongitude"][2]);
// --- Get GPS Hemisphere longitude --- //
$GPSSecondsLon2 = ($ReadEXIFData["GPS"]["GPSLongitudeRef"]);
// --- Decimal Longitude goes here --- //
// --- Get GPS altitude --- //
$GPSAltitude = $ReadEXIFData["GPS"]["GPSAltitude"][0];
?>
然后将信息打印在 html 页面中,如下所示http://ukf.com/easyexif/easyexif3.php
问题是返回的 GPS 坐标以度/分/秒为单位。
要将它们转换为十进制,我有这个脚本:
function toDecimal($deg, $min, $sec, $hemi) {
$d = $deg + $min/60 + $sec/3600;
return ($hemi=='S' || $hemi=='W') ? $d*=-1 : $d;
}
function divide($a) {
$e = explode('/', $a);
if (!$e[0] || !$e[1]) {
return 0;
} else {
return $e[0] / $e[1];
}
}
function getGPS() {
global $exif;
if ($exif) { $lat = $exif['GPS']['GPSLatitude'];
$log = $exif['GPS']['GPSLongitude'];
if (!$lat || !$log) return null;
$lat_degrees = divide($lat[0]);
$lat_minutes = divide($lat[1]);
$lat_seconds = divide($lat[2]);
$lat_hemi = $exif['GPS']['GPSLatitudeRef'];
$log_degrees = divide($log[0]);
$log_minutes = divide($log[1]);
$log_seconds = divide($log[2]);
$log_hemi = $exif['GPS']['GPSLongitudeRef'];
$lat_decimal = toDecimal($lat_degrees, $lat_minutes, $lat_seconds, $lat_hemi);
$log_decimal = toDecimal($log_degrees, $log_minutes, $log_seconds, $log_hemi);
return array($lat_decimal, $log_decimal);
} else{
return null;
}
}
我需要的是表单中返回的十进制对数和纬度
$GPSDECLON
$GPSDECLAT
所以我可以将它们与上述信息一起包含在我的 html 页面中。
我目前的 PHP 知识非常有限,我不知道如何将转换包含到我现有的脚本中。
有人可以帮忙吗??如果是这样,将不胜感激。