PHP实现显示照片exif信息的方法

 $val) { if ($name==$ImageInfo) { $InfoVal  =  &$val; break; } } return $InfoVal; } function GetImageInfo($img) { $imgtype      =  array("", "GIF", "JPG", "PNG", "SWF", "PSD", "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_img_info  =  array ("文件信息"    =>  "没有图片EXIF信息"); } else { $exif = exif_read_data ($img,0,true); $new_img_info  =  array ( "文件信息"    =>  "-----------------------------", "文件名"    =>  $exif[FILE][FileName], "文件类型"    =>  $imgtype[$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_img_info; } $innerhtml  =  ""; $exif  =  GetImageInfo($_GET['img']); $innerhtml  .=  ""; foreach($exif as $name=>$val) { $innerhtml  .=  ""; } $innerhtml  .=  "
{$name}
{$val}
"; if ($_GET['img']) { $image = exif_thumbnail($_GET['img']); } else { $image = false; } if ($image!==false) { $innerhtml  .=  ""; } else { // no thumbnail available, handle the error here $innerhtml  .=  "No thumbnail available"; } $innerhtml  .=  "
"; ?>