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标题: PHP实现显示照片exif信息的方法 [打印本页]

作者: wx_pylelnL4 时间: 2018-2-14 05:56

         PHP编程可实现显示照片EXIF信息，显示图片中缩略图效果，其代码如下：
$val) {
if ($name==$ImageInfo) {
   $InfoVal  =  &$val;
   break;
}
  }
  return $InfoVal;
}
function GetImageInfo($img) {
  $("", "GIF", "JPG", "

NG", "SWF", "

SD", "BMP", "TIFF(intel byte order)", "TIFF(motorola byte order)", "JPC", "JP2", "JPX", "JB2", "SWC", "IFF", "WBMP", "XBM");
  $Orientation =  array("", "top left side", "top right side", "bottom right side", "bottom left side", "left side top", "right side top", "right side bottom", "left side bottom");
  $ResolutionUnit =  array("", "", "英寸", "厘米");
  $YCbCrPositioning  =  array("", "the center of pixel array", "the datum point");
  $ExposureProgram  =  array("未定义", "手动", "标准程序", "光圈先决", "快门先决", "景深先决", "运动模式", "肖像模式", "风景模式");
  $MeteringMode_arr  =  array(
"0" =>  "未知",
"1" =>  "平均",
"2" =>  "中央重点平均测光",
"3" =>  "点测",
"4" =>  "分区",
"5" =>  "评估",
"6" =>  "局部",
"255"  =>  "其他"
);
  $Lightsource_arr  =  array(
"0" =>  "未知",
"1" =>  "日光",
"2" =>  "荧光灯",
"3" =>  "钨丝灯",
"10"  =>  "闪光灯",
"17"  =>  "标准灯光A",
"18"  =>  "标准灯光B",
"19"  =>  "标准灯光C",
"20"  =>  "D55",
"21"  =>  "D65",
"22"  =>  "D75",
"255"  =>  "其他"
);
  $Flash_arr    =  array(
"0" =>  "flash did not fire",
"1" =>  "flash fired",
"5" =>  "flash fired but strobe return light not detected",
"7" =>  "flash fired and strobe return light detected",
);

  $exif = exif_read_data ($img,"IFD0");
  if ($exif===false) {
$new_("文件信息" =>  "没有图片EXIF信息");
  }
  else
  {
$exif = exif_read_data ($img,0,true);
$new_(
   "文件信息" =>  "-----------------------------",
   "文件名" =>  $exif[FILE][FileName],
   "文件类型" =>  $[$exif[FILE][FileType]],
   "文件格式" =>  $exif[FILE][MimeType],
   "文件大小" =>  $exif[FILE][FileSize],
   "时间戳" =>  date("Y-m-d H:i:s",$exif[FILE][FileDateTime]),
   "图像信息" =>  "-----------------------------",
   "图片说明" =>  $exif[IFD0][ImageDescription],
   "制造商" =>  $exif[IFD0][Make],
   "型号"    =>  $exif[IFD0][Model],
   "方向"    =>  $Orientation[$exif[IFD0][Orientation]],
   "水平分辨率"  =>  $exif[IFD0][XResolution].$ResolutionUnit[$exif[IFD0][ResolutionUnit]],
   "垂直分辨率"  =>  $exif[IFD0][YResolution].$ResolutionUnit[$exif[IFD0][ResolutionUnit]],
   "创建软件" =>  $exif[IFD0][Software],
   "修改时间" =>  $exif[IFD0][DateTime],
   "作者"    =>  $exif[IFD0][Artist],
   "YCbCr位置控制"  =>  $YCbCrPositioning[$exif[IFD0][YCbCrPositioning]],
   "版权"    =>  $exif[IFD0][Copyright],
   "摄影版权" =>  $exif[COMPUTED][Copyright.Photographer],
   "编辑版权" =>  $exif[COMPUTED][Copyright.Editor],
   "拍摄信息" =>  "-----------------------------",
   "Exif版本" =>  $exif[EXIF][ExifVersion],
   "FlashPix版本"  =>  "Ver. ".number_format($exif[EXIF][FlashPixVersion]/100,2),
   "拍摄时间" =>  $exif[EXIF][DateTimeOriginal],
   "数字化时间"  =>  $exif[EXIF][DateTimeDigitized],
   "拍摄分辨率高"  =>  $exif[COMPUTED][Height],
   "拍摄分辨率宽"  =>  $exif[COMPUTED][Width],
   /*
   The actual aperture value of lens when the image was taken.
   Unit is APEX.
   To convert this value to ordinary F-number(F-stop),
   calculate this value's power of root 2 (=1.4142).
   For example, if the ApertureValue is '5', F-number is pow(1.41425,5) = F5.6.
   */
   "光圈"    =>  $exif[EXIF][ApertureValue],
   "快门速度" =>  $exif[EXIF][ShutterSpeedValue],
   "快门光圈" =>  $exif[COMPUTED][ApertureFNumber],
   "最大光圈值"  =>  "F".$exif[EXIF][MaxApertureValue],
   "曝光时间" =>  $exif[EXIF][ExposureTime],
   "F-Number" =>  $exif[EXIF][FNumber],
   "测光模式" =>  GetImageInfoVal($exif[EXIF][MeteringMode],$MeteringMode_arr),
   "光源"    =>  GetImageInfoVal($exif[EXIF][LightSource], $Lightsource_arr),
   "闪光灯" =>  GetImageInfoVal($exif[EXIF][Flash], $Flash_arr),
   "曝光模式" =>  ($exif[EXIF][ExposureMode]==1?"手动":"自动"),
   "白平衡" =>  ($exif[EXIF][WhiteBalance]==1?"手动":"自动"),
   "曝光程序" =>  $ExposureProgram[$exif[EXIF][ExposureProgram]],
   /*
   Brightness of taken subject, unit is APEX. To calculate Exposure(Ev) from BrigtnessValue(Bv), you must add SensitivityValue(Sv).
   Ev=Bv+Sv  Sv=log((ISOSpeedRating/3.125),2)
   ISO100:Sv=5, ISO200:Sv=6, ISO400:Sv=7, ISO125:Sv=5.32.
   */
   "曝光补偿" =>  $exif[EXIF][ExposureBiasValue]."EV",
   "ISO感光度" =>  $exif[EXIF][ISOSpeedRatings],
   "分量配置" =>  (bin2hex($exif[EXIF][ComponentsConfiguration])=="01020300"?"YCbCr":"RGB"),//'0x04,0x05,0x06,0x00'="RGB" '0x01,0x02,0x03,0x00'="YCbCr"
   "图像压缩率"  =>  $exif[EXIF][CompressedBitsPerPixel]."Bits/Pixel",
   "对焦距离" =>  $exif[COMPUTED][FocusDistance]."m",
   "焦距"    =>  $exif[EXIF][FocalLength]."mm",
   "等价35mm焦距"  =>  $exif[EXIF][FocalLengthIn35mmFilm]."mm",
   /*
   Stores user comment. This tag allows to use two-byte character code or unicode. First 8 bytes describe the character code. 'JIS' is a Japanese character code (known as Kanji).
   '0x41,0x53,0x43,0x49,0x49,0x00,0x00,0x00':ASCII
   '0x4a,0x49,0x53,0x00,0x00,0x00,0x00,0x00':JIS
   '0x55,0x4e,0x49,0x43,0x4f,0x44,0x45,0x00':Unicode
   '0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00':Undefined
   */
   "用户注释编码"  =>  $exif[COMPUTED][UserCommentEncoding],
   "用户注释" =>  $exif[COMPUTED][UserComment],
   "色彩空间" =>  ($exif[EXIF][ColorSpace]==1?"sRGB":"Uncalibrated"),
   "Exif图像宽度"  =>  $exif[EXIF][ExifImageLength],
   "Exif图像高度"  =>  $exif[EXIF][ExifImageWidth],
   "文件来源" =>  (bin2hex($exif[EXIF][FileSource])==0x03?"digital still camera":"unknown"),
   "场景类型" =>  (bin2hex($exif[EXIF][SceneType])==0x01?"A directly photographed image":"unknown"),
   "缩略图文件格式"  =>  $exif[COMPUTED][Thumbnail.FileType],
   "缩略图Mime格式"  =>  $exif[COMPUTED][Thumbnail.MimeType]
);
  }
  return $new_;
}
$innerhtml  =  "";
$exif  =  GetImageInfo($_GET['img']);
$innerhtml  .=  "

foreach($exif as $name=>$val) {

$innerhtml .= "[TR][TD]{$name}[/TD][TD]{$val}[/TD][/TR]";

}

$innerhtml .= "[TR][TD]";

if ($_GET['img']) {

$image = exif_thumbnail($_GET['img']);

} else {

$image = false;

}

if ($image!==false) {

$innerhtml .= "

[img][/img]