PHP中利用EXIF函數集回顯示單反照片的EXIF資訊

PHP中利用EXIF函數集來顯示單反照片的EXIF資訊

要成功做到能用EXIF函數顯示單反EXIF資訊需要一下幾個不步驟:

1.修改php.ini的exif相關資訊

2.繼續修改php.ini資訊,找到以下模組,將帶exif的配置屬性前的;號去掉,然後重啟apache

3.驗證php確實開啟了exif模組成功,利用以下代碼

echo phpinfo(); ?>

如果看到顯示,則表示成功開啟了exif模組,這樣我們就可以開始利用其函數集了

4.開始寫相關類(或函數,是別人封裝好的,我個人覺得這個合適),如下,大家可以自己自行修改其中代碼以供自己使用

function GetImageInfoVal($ImageInfo,$val_arr) { $InfoVal = "未知"; foreach($val_arr as $name=>$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("未定義", "手動", "標準程式", "光圈先決", "快門先決", "景深先決", "運動模式", "肖像模式", "風景模式"); $MeteringMode_arr = array( "0" => "未知", "1" => "平均", "2" => "中央重點平均測光", "3" => "點測", "4" => "分區", "5" => "評估", "6" => "局部", "255" => "其他" ); $Lightsource_arr = array( "0" => "未知", "1" => "日光", "2" => "熒光燈", "3" => "鎢絲燈", "10" => "閃光燈", "17" => "標準燈光A", "18" => "標準燈光B", "19" => "標準燈光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 ("檔案資訊" => "沒有圖片EXIF資訊"); } else { $exif = exif_read_data ($img,0,true); $new_img_info = array ( "檔案資訊" => "-----------------------------", "檔案名稱" => $exif[FILE][FileName], "檔案類型" => $imgtype[$exif[FILE][FileType]], "檔案格式" => $exif[FILE][MimeType], "檔案大小" => $exif[FILE][FileSize], "時間戳記" => date("Y-m-d H:i:s",$exif[FILE][FileDateTime]), "映像資訊" => "-----------------------------", "圖片說明" => $exif[IFD0][ImageDescription], "製造商" => $exif[IFD0][Make], "型號" => $exif[IFD0][Model], "方向" => $Orientation[$exif[IFD0][Orientation]], "水平解析度" => $exif[IFD0][XResolution].$ResolutionUnit[$exif[IFD0][ResolutionUnit]], "垂直解析度" => $exif[IFD0][YResolution].$ResolutionUnit[$exif[IFD0][ResolutionUnit]], "建立軟體" => $exif[IFD0][Software], "修改時間" => $exif[IFD0][DateTime], "作者" => $exif[IFD0][Artist], "YCbCr位置控制" => $YCbCrPositioning[$exif[IFD0][YCbCrPositioning]], "著作權" => $exif[IFD0][Copyright], "攝影著作權" => $exif[COMPUTED][Copyright.Photographer], "編輯著作權" => $exif[COMPUTED][Copyright.Editor], "拍攝資訊" => "-----------------------------", "Exif版本" => $exif[EXIF][ExifVersion], "FlashPix版本" => "Ver. ".number_format($exif[EXIF][FlashPixVersion]/100,2), "拍攝時間" => $exif[EXIF][DateTimeOriginal], "數字化時間" => $exif[EXIF][DateTimeDigitized], "拍攝解析度高" => $exif[COMPUTED][Height], "拍攝解析度寬" => $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], "快門速度" => $exif[EXIF][ShutterSpeedValue], "快門光圈" => $exif[COMPUTED][ApertureFNumber], "最大光圈值" => "F".$exif[EXIF][MaxApertureValue], "曝光時間" => $exif[EXIF][ExposureTime], "F-Number" => $exif[EXIF][FNumber], "測光模式" => GetImageInfoVal($exif[EXIF][MeteringMode],$MeteringMode_arr), "光源" => GetImageInfoVal($exif[EXIF][LightSource], $Lightsource_arr), "閃光燈" => GetImageInfoVal($exif[EXIF][Flash], $Flash_arr), "曝光模式" => ($exif[EXIF][ExposureMode]==1?"手動":"自動"), "白平衡" => ($exif[EXIF][WhiteBalance]==1?"手動":"自動"), "曝光程式" => $ExposureProgram[$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. */ "曝光補償" => $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" "映像壓縮率" => $exif[EXIF][CompressedBitsPerPixel]."Bits/Pixel", "對焦距離" => $exif[COMPUTED][FocusDistance]."m", "焦距" => $exif[EXIF][FocalLength]."mm", "等價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 */ "使用者注釋編碼" => $exif[COMPUTED][UserCommentEncoding], "使用者注釋" => $exif[COMPUTED][UserComment], "色彩空間" => ($exif[EXIF][ColorSpace]==1?"sRGB":"Uncalibrated"), "Exif映像寬度" => $exif[EXIF][ExifImageLength], "Exif映像高度" => $exif[EXIF][ExifImageWidth], "檔案來源" => (bin2hex($exif[EXIF][FileSource])==0x03?"digital still camera":"unknown"), "情境類型" => (bin2hex($exif[EXIF][SceneType])==0x01?"A directly photographed image":"unknown"), "縮圖檔案格式" => $exif[COMPUTED][Thumbnail.FileType], "縮圖Mime格式" => $exif[COMPUTED][Thumbnail.MimeType] ); } return $new_img_info; }

5.寫測試代碼

header("content-type:text/html;charset=utf-8"); $filename = "test.jpg"; require 'pic.class.php'; $new_img_info = GetImageInfo($filename); //echo $new_img_info; foreach ($new_img_info as $key=> $section) { echo $key.":".$section.""; } ?>

6.結果

檔案資訊:-----------------------------檔案名稱:test.jpg檔案類型:JPG檔案格式:image/jpeg檔案大小:477883時間戳記:2014-03-07 14:53:57映像資訊:-----------------------------圖片說明:SONY DSC製造商:SONY型號:DSLR-A900方向:top left side水平解析度:2400000/10000英寸垂直解析度:2400000/10000英寸建立軟體:Adobe Photoshop CS6 (Windows)修改時間:2014:01:13 14:02:59作者:YCbCr位置控制:著作權:攝影著作權:編輯著作權:拍攝資訊:-----------------------------Exif版本:0221FlashPix版本:Ver. 0.00拍攝時間:2014:01:10 12:06:40數字化時間:2014:01:10 12:06:40拍攝解析度高:806拍攝解析度寬:1210光圈:761471/100000快門速度:7965784/1000000快門光圈:f/14.0最大光圈值:F434/100曝光時間:1/250F-Number:14/1測光模式:評估光源:未知閃光燈:未知曝光模式:自動白平衡:自動曝光程式:光圈先決曝光補償:-7/10EVISO感光度:100分量配置:RGB映像壓縮率:Bits/Pixel對焦距離:m焦距:120/10mm等價35mm焦距:12mm使用者注釋編碼:使用者注釋:色彩空間:UncalibratedExif映像寬度:4032Exif映像高度:6048檔案來源:digital still camera情境類型:A directly photographed image縮圖檔案格式:縮圖Mime格式:

至此,一個簡單利用exif函數集來顯示圖片的exif資訊的模組就出來了.

