exif_read_data

(PHP 4 >= 4.2.0, PHP 5, PHP 7)

exif_read_data — 锟斤拷 JPEG 锟斤拷 TIFF 锟侥硷拷锟叫讹拷取 EXIF 头锟斤拷息

说锟斤拷

exif_read_data ( string $filename [, string $sections = NULL [, bool $arrays = false [, bool $thumbnail = false ]]] ) : array

exif_read_data() 锟斤拷锟斤拷锟斤拷 JPEG 锟斤拷 TIFF 图锟斤拷锟侥硷拷锟叫讹拷取 EXIF 头锟斤拷息锟斤拷锟斤拷锟斤拷锟酵匡拷锟皆讹拷取锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆拷锟斤拷荨锟�

EXIF 头锟斤拷息锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷傻锟� JPEG/TIFF 图锟斤拷锟叫ｏ拷锟斤拷锟斤拷锟揭碉拷锟斤拷每锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷痰谋锟角讹拷锟斤拷同锟斤拷锟斤拷耍锟斤拷锟叫达拷锟斤拷锟绞憋拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟侥筹拷锟斤拷囟锟斤拷锟� Exif 头锟斤拷息锟斤拷

Height 锟斤拷 Width 锟斤拷锟矫猴拷 getimagesize() 一锟斤拷锟侥凤拷锟斤拷锟斤拷锟斤拷模锟斤拷锟斤拷锟斤拷锟角碉拷值锟斤拷锟斤拷锟斤拷锟轿何凤拷锟截碉拷头锟斤拷息锟侥诧拷锟街★拷锟斤拷锟斤拷 html 锟斤拷一锟斤拷 height/width 锟斤拷锟侥憋拷锟街凤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷通锟斤拷 HTML 锟叫★拷

锟斤拷一锟斤拷 Exif 头锟斤拷息锟斤拷锟斤拷锟斤拷一锟斤拷 Copyright 时注锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷园锟斤拷锟斤拷锟斤拷锟街碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 Exif 2.10 锟斤拷准锟斤拷一锟铰ｏ拷COMPUTED 锟斤拷锟轿伙拷同时锟斤拷锟斤拷 Copyright.Photographer 锟斤拷 Copyright.Editor锟斤拷锟斤拷锟斤拷 IFD0 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷纸锟斤拷锟斤拷锟斤拷锟� NULL 锟街凤拷锟街革拷锟斤拷锟斤拷锟斤拷锟斤拷目锟斤拷锟斤拷锟斤拷只锟叫碉拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷痛锟斤拷锟侥伙拷锟斤拷Exif 锟斤拷锟斤拷锟斤拷锟斤拷为锟斤拷锟斤拷COMPUTED 也锟斤拷锟斤拷锟� Copyright锟斤拷要么锟斤拷原始锟侥帮拷权锟街凤拷锟斤拷锟斤拷要么锟角讹拷锟脚分革拷锟斤拷锟斤拷锟斤拷锟斤拷嗉拷陌锟饺拷锟较拷锟�

UserComment 锟斤拷呛锟� Copyright 锟斤拷同锟斤拷锟斤拷锟斤拷锟解。锟斤拷也锟斤拷锟皆存储锟斤拷锟斤拷值锟斤拷锟斤拷一锟斤拷锟斤拷使锟矫的憋拷锟诫方式锟斤拷锟节讹拷锟斤拷锟斤拷锟斤拷值锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟� IFD0 锟斤拷锟轿斤拷锟斤拷锟斤拷锟斤拷锟诫方式锟斤拷锟斤拷一锟斤拷锟街斤拷锟斤拷锟介。COMPUTED 锟斤拷锟轿斤拷锟芥储锟斤拷锟斤拷值锟斤拷 UserCommentEncoding 锟斤拷 UserComment锟斤拷UserComment 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷露锟斤拷锟斤拷锟斤拷锟斤拷应锟斤拷锟斤拷锟斤拷使锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 IFD0 锟斤拷锟斤拷锟叫的革拷值锟斤拷

exif_read_data() 锟斤拷锟斤拷锟斤拷锟� EXIF 锟芥范锟斤拷» http://exif.org/Exif2-2.PDF锟斤拷锟斤拷 20 页锟斤拷锟斤拷锟斤拷证 EXIF 锟斤拷锟捷★拷

Note:

Windows ME/XP 锟斤拷锟斤拷锟接碉拷锟斤拷锟斤拷锟斤拷锟绞憋拷锟斤拷锟斤拷锟斤拷 Exif 头锟斤拷息锟斤拷

锟斤拷锟斤拷

filename

锟斤拷锟斤拷取锟斤拷图锟斤拷锟侥硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 URL锟斤拷

sections

锟斤拷锟斤拷要锟斤拷锟斤拷锟斤拷锟侥硷拷锟叫的讹拷锟脚分革拷锟斤拷锟斤拷锟斤拷锟叫憋拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷椤ｏ拷锟斤拷未锟揭碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷蚍祷锟街滴� FALSE锟斤拷

FILE FileName, FileSize, FileDateTime, SectionsFound
COMPUTED html锟斤拷Width锟斤拷Height锟斤拷IsColor锟斤拷锟斤拷锟斤拷锟叫革拷锟斤拷锟斤拷锟斤拷锟侥★拷Height 锟斤拷 Width 锟斤拷锟矫猴拷 getimagesize() 一锟斤拷锟侥凤拷锟斤拷锟斤拷锟斤拷模锟斤拷锟斤拷锟斤拷锟角碉拷值锟斤拷锟斤拷锟斤拷锟轿何凤拷锟截碉拷头锟斤拷息锟侥诧拷锟街★拷锟斤拷锟斤拷 html 锟斤拷一锟斤拷 height/width 锟斤拷锟侥憋拷锟街凤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷通锟斤拷 HTML 锟叫★拷
ANY_TAG 锟轿何帮拷锟斤拷锟叫憋拷堑锟斤拷锟较拷锟斤拷锟斤拷锟� IFD0锟斤拷EXIF锟斤拷...
IFD0 锟斤拷锟斤拷 IFD0 锟侥憋拷锟斤拷锟斤拷荨锟斤拷诒锟阶硷拷锟酵硷拷锟斤拷募锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷图锟斤拷锟叫★拷锟斤拷锟斤拷锟斤拷锟�
THUMBNAIL 锟斤拷锟斤拷械诙锟斤拷锟� IFD锟斤拷锟侥硷拷应锟矫帮拷锟斤拷锟斤拷锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟叫癸拷嵌锟斤拷锟斤拷锟斤拷图锟侥憋拷锟斤拷锟较拷锟斤拷娲拷诒锟斤拷锟斤拷锟�
COMMENT JPEG 图锟斤拷锟阶拷锟酵凤拷锟较拷锟�
EXIF EXIF 锟斤拷锟斤拷锟斤拷 IFDO 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷图锟斤拷母锟斤拷锟斤拷锟较革拷锟较拷锟斤拷锟斤拷锟斤拷锟斤拷锟捷讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟截的★拷

arrays

指锟斤拷锟斤拷锟角凤拷每锟斤拷锟斤拷锟轿讹拷锟斤拷为一锟斤拷锟斤拷锟介。sections COMPUTED锟斤拷THUMBNAIL 锟斤拷COMMENT 锟斤拷锟斤拷锟斤拷锟角筹拷为锟斤拷锟介，锟斤拷为锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷趾锟斤拷锟斤拷锟斤拷锟斤拷纬锟酵伙拷锟�

thumbnail

锟斤拷锟借定为 TRUE 时锟斤拷锟斤拷取锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷只锟斤拷取锟斤拷锟斤拷锟斤拷荨锟�

锟斤拷锟斤拷值

锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟介，锟斤拷锟斤拷锟斤拷头锟斤拷息锟斤拷锟斤拷值为锟斤拷锟斤拷锟斤拷应锟斤拷值锟斤拷锟斤拷锟矫伙拷锌晒锟斤拷锟斤拷氐锟斤拷锟斤拷荩锟�exif_read_data() 锟斤拷锟斤拷锟斤拷 FALSE锟斤拷

锟斤拷锟斤拷锟斤拷志

锟芥本 说锟斤拷
4.3.0 锟斤拷锟皆讹拷取锟斤拷锟斤拷嵌锟斤拷锟� IFD 锟斤拷锟捷ｏ拷锟斤拷锟斤拷锟斤拷锟介（也锟斤拷锟斤拷锟斤拷锟介）锟斤拷锟斤拷锟斤拷嵌锟斤拷锟斤拷锟斤拷锟酵硷拷拇锟叫★拷锟斤拷锟斤拷锟� THUMBNAIL 锟斤拷锟斤拷锟斤拷锟叫诧拷锟斤拷 exif_read_data() 锟斤拷锟皆斤拷锟斤拷锟斤拷图锟斤拷锟斤拷 TIFF 锟斤拷式锟斤拷锟截★拷锟斤拷螅锟斤拷锟斤拷蟹锟斤拷锟街碉拷锟襟长度碉拷锟斤拷锟斤拷锟剿ｏ拷直锟斤拷锟斤到锟节达拷锟睫讹拷锟斤拷锟斤拷
4.3.0 锟斤拷锟� PHP 锟斤拷 mbstring 支锟街ｏ拷锟斤拷锟矫伙拷注锟酵匡拷锟斤拷锟皆讹拷锟侥憋拷锟斤拷搿ｏ拷锟斤拷猓拷锟斤拷锟矫伙拷注锟斤拷使锟斤拷 Unicode 锟斤拷 JIS 锟斤拷锟诫，锟斤拷锟斤拷锟斤拷锟� EXIF 锟斤拷 php.ini 锟叫碉拷 锟斤拷锟矫憋拷锟皆讹拷锟侥变。
4.3.0 锟斤拷锟酵硷拷锟斤拷锟斤拷锟轿猴拷 IFD0 锟斤拷锟捷ｏ拷锟斤拷 COMPUTED 锟斤拷锟斤拷锟斤拷锟揭伙拷锟� ByteOrderMotorola锟斤拷锟斤拷锟斤拷 little-endian (intel) 锟街斤拷顺锟斤拷锟斤拷值为 0锟斤拷锟斤拷锟斤拷 big-endian (motorola) 锟街斤拷顺锟斤拷锟斤拷值为 1锟斤拷锟斤拷锟解，COMPUTED 锟斤拷 UserComment 锟斤拷锟斤拷锟斤拷锟斤拷锟酵筹拷锟斤拷时也锟斤拷锟劫斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷权锟斤拷目锟斤拷

锟斤拷锟斤拷

Example #1 exif_read_data() 锟斤拷锟斤拷

<?php
echo "test1.jpg:<br />\n";
$exif = exif_read_data('tests/test1.jpg', 'IFD0');
echo $exif===false ? "No header data found.<br />\n" : "Image contains headers<br />\n";

$exif = exif_read_data('tests/test2.jpg', 0, true);
echo "test2.jpg:<br />\n";
foreach ($exif as $key => $section) {
    foreach ($section as $name => $val) {
        echo "$key.$name: $val<br />\n";
    }
}
?>

锟斤拷一锟斤拷锟斤拷锟斤拷失锟斤拷锟剿ｏ拷锟斤拷为图锟斤拷没锟斤拷头锟斤拷息锟斤拷

锟斤拷锟斤拷锟斤拷锟教碉拷锟斤拷锟斤拷锟斤拷锟斤拷冢锟�

test1.jpg:
No header data found.
test2.jpg:
FILE.FileName: test2.jpg
FILE.FileDateTime: 1017666176
FILE.FileSize: 1240
FILE.FileType: 2
FILE.SectionsFound: ANY_TAG, IFD0, THUMBNAIL, COMMENT
COMPUTED.html: width="1" height="1"
COMPUTED.Height: 1
COMPUTED.Width: 1
COMPUTED.IsColor: 1
COMPUTED.ByteOrderMotorola: 1
COMPUTED.UserComment: Exif test image.
COMPUTED.UserCommentEncoding: ASCII
COMPUTED.Copyright: Photo (c) M.Boerger, Edited by M.Boerger.
COMPUTED.Copyright.Photographer: Photo (c) M.Boerger
COMPUTED.Copyright.Editor: Edited by M.Boerger.
IFD0.Copyright: Photo (c) M.Boerger
IFD0.UserComment: ASCII
THUMBNAIL.JPEGInterchangeFormat: 134
THUMBNAIL.JPEGInterchangeFormatLength: 523
COMMENT.0: Comment #1.
COMMENT.1: Comment #2.
COMMENT.2: Comment #3end
THUMBNAIL.JPEGInterchangeFormat: 134
THUMBNAIL.Thumbnail.Height: 1
THUMBNAIL.Thumbnail.Height: 1

锟轿硷拷

  • exif_thumbnail() - 取锟斤拷嵌锟斤拷锟斤拷 TIFF 锟斤拷 JPEG 图锟斤拷锟叫碉拷锟斤拷锟斤拷图
  • getimagesize() - 取锟斤拷图锟斤拷锟叫�