PHP implementation method for displaying EXIF information of photos, _php tutorial

PHP implements the method of displaying EXIF information of photos,

PHP programming can be implemented to display photos EXIF information, display image thumbnail effect, the code is as follows:

<?/*** function to obtain image information * A function to obtain image information comprehensively * @access public* @param string $img picture path * @return array*/function getimageinfoval ($Ima  Geinfo, $val _arr) {$InfoVal = "unknown";      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 ("", "" "," "", "" cm ");  $YCbCrPositioning = Array ("", "the center of Pixel Array", "The Datum point");  $ExposureProgram = Array ("Undefined", "manual", "Standard program", "Aperture precedent", "shutter precedent", "depth of field", "Sport Mode", "Portrait Mode", "landscape mode"); $MeteringMode _arr = Array ("0" = "Unknown", "1" = "average", "2 "=" Central weighted average metering "," 3 "+" point Measurement "," 4 "=" Partition "," 5 "=" Evaluation "," 6 "=" local "," 2  "=" and "others");    $Lightsource _arr = Array ("0" = "Unknown", "1" = "Daylight", "2" = "Fluorescent", "3" = "tungsten",    "Ten" and "Flash", "+" and "standard Light a", "all" and "standard light B", "+" and "Standard light C", "a" and "D55",  "+" = "D65", "All" and "D75", "255" and "others"; $Flash _arr = Array ("0" = "flash did not Fire", "1" = "Flash Fired", "5" = "Flash f"    Ired 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 ("File Information" = "No Picture exif information");    } else {$exif = Exif_read_data ($img, 0,true); $new _img_info = Array ("File Information" = "-----------------------------", "filename" = = $exif [File][filenaMe], "file type" = = $imgtype [$exif [File][filetype]], "file format" = $exif [File][mimetype], File size =&  Gt $exif [file][filesize], "timestamp" = Date ("y-m-d h:i:s", $exif [File][filedatetime]), "image information" = "--------      ---------------------"," Picture description "and" Ifd0][make "[Ifd0][imagedescription]," Manufacturer "and" $exif ", "Model" = $exif [Ifd0][model], "direction" = = $Orientation [$exif [ifd0][orientation]], "horizontal Resolution" = = $e Xif[ifd0][xresolution]. $ResolutionUnit [$exif [Ifd0][resolutionunit]], "vertical resolution" and "= $exif [ifd0][yresolution].$ resolutionunit[$exif [Ifd0][resolutionunit]], "create software" = $exif [Ifd0][software], "Modified Time" and "$exif" [IFD0 ][datetime], "author" = $exif [Ifd0][artist], "YCbCr position control" and "$YCbCrPositioning [$exif [Ifd0][ycbcrpositi      Oning]], "copyright" = $exif [Ifd0][copyright], "photography copyright" = "$exif [Computed][copyright.photographer], "Edit Copyright" = $exif [COmputed][copyright.editor], "shooting information" = "-----------------------------", "Exif version" and "$exif [Exif][exi Fversion], "FlashPix version" = "Ver.". Number_format ($exif [exif][flashpixversion]/100,2), "Shooting Time" and "the duration of the recording" $exi F[exif][datetimeoriginal], "digital time" = $exif [exif][datetimedigitized], "shooting resolution High" = $exif [Computed][heig HT], "shooting resolution width" = $exif [Computed][width],/* The actual aperture value of lens when the image is 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 are ' 5 ', f-number is pow (1.41425,5) = F5.6.    */"aperture" = $exif [Exif][aperturevalue], "shutter speed" = $exif [Exif][shutterspeedvalue], "Shutter aperture" = = $exif [Computed][aperturefnumber], "Maximum aperture value" and "F". $exif [Exif][maxaperturevalue], "exposure time" = $ex If[exif][exposuretime], "f-number" =  $exif [Exif][fnumber], "metering mode" = Getimageinfoval ($exif [Exif][meteringmode], $MeteringMode _arr), "light source" = Getimageinfoval ($exif [Exif][lightsource], $Lightsource _arr), "flash" = Getimageinfoval ($exif [Exif][flas h], $Flash _arr), "exposure mode" = ($exif [exif][exposuremode]==1? Manual ":" Auto ")," white balance "= ($exif [exif][whitebalance]==1?]  Manual ":" Automatic ")," exposure Program "= $ExposureProgram [$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. */"exposure compensation" = $exif [Exif][exposurebiasvalue]. " EV "," iso sensitivity "= $exif [exif][isospeedratings], component configuration = (Bin2Hex ($exif [Exif][componentsconfigurat ION]) = = "01020300"? "  YCbCr ":" RGB "),//' 0x04,0x05,0x06,0x00 ' =" RGB "' 0x01,0x02,0x03,0x00 ' =" YCbCr "" image compression rate "= = $exif [Exif][compressedbitsperpixel]. " Bits/pixel "," focus distance "= $exif [computed][focusdistance]." M "," focal length "= = $exif [Exif][focallength]." MM "," equivalent 35mm focal Length "= $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,0x49,0x 43,0x4f,0x44,0x45,0x00 ': Unicode ' 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ': Undefined */"user comment Code" = $ex If[computed][usercommentencoding], "user notes" = = $exif [computed][usercomment], "color space" = ($exif [exif][ Colorspace]==1? " SRGB ":" uncalibrated ")," exif image width "= $exif [Exif][exifimagelength]," exif image height "= $exif [exif][exifimage Width], "file source" = (Bin2Hex ($exif [Exif][filesource]) ==0x03?" Digital still Camera ":" Unknown ")," scene type "= (Bin2Hex ($exif [exif][scenetype]) ==0x01?" A directly photographed image ":" Unknown ")," thumbnail file format "= = $exif [Computed][thumbnail.filetype]," thumbnail MIME format "=  > $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. = "
 
   
 
  

 
 
";? > <title>Picture information</title>
 
  
 

http://www.bkjia.com/PHPjc/840633.html www.bkjia.com true http://www.bkjia.com/PHPjc/840633.html techarticle PHP Implementation of display photos Exif information method, PHP programming can be implemented to display photos EXIF information, display image thumbnail effect, the code is as follows:/*** get image information function * A full ...

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