很多站长朋友们都不太清楚php照片程序,今天小编就来给大家整理php照片程序,希望对各位有所帮助,具体内容如下:
本文目录一览: 1、 PHP如何读取照片的exif信息实现代码 2、 PHP实现上传图片到数据库并显示输出的方法 3、 php中插入图片的代码是什么? 4、 php 如何通过程序对图片进行Byte[] 格式的处理 PHP如何读取照片的exif信息实现代码先来了解什么是图片的Exif信息
Exif是一种图象文件格式,它的数据存储与JPEG格式是完全相同的。
实际上Exif格式就是在JPEG格式头部插入了数码照片的信息,包括拍摄时的光圈、快门、白平衡、ISO、焦距、日期时间等各种和拍摄条件以及相机品牌、型号、色彩编码、拍摄时录制的声音以及全球定位系统(GPS)、缩略图等。简单地说,Exif=JPEG+拍摄参数。
因此,你可以利用任何可以查看JPEG文件的看图软件浏览Exif格式的照片,但并不是所有的图形程序都能处理Exif信息。
具体代码你可以参考下面的
<?
/**
* 获取图象信息的函数
* 一个全面获取图象信息的函数
* @access public
* @param string $img 图片路径
* @return array
*/
function GetImageInfoVal($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']);
$innerhtml .= "<TABLE>";
foreach($exif as $name=>$val) {
$innerhtml .= "<TR><TD>{$name}</TD><TD>{$val}</TD></TR>";
}
$innerhtml .= "<TR><TD colspan=\"2\">";
if ($_GET['img']) {
$image = exif_thumbnail($_GET['img']);
} else {
$image = false;
}
if ($image!==false) {
$innerhtml .= "<img src=\"thumbnail.php?img=".$_GET['img']."\">";
} else {
// no thumbnail available, handle the error here
$innerhtml .= "No thumbnail available";
}
$innerhtml .= "</TD></TR></TABLE>";
?>
<html>
<head>
<title>图片信息</title>
<meta http-equiv="Content-Type" content="text/html; charset=??????">
</head>
<body>
<SCRIPT>
<!--
//初始化内容值
parent.followTd<?=$_GET['r_id'];?>.innerHTML='<?=$innerhtml;?>';
//已读取
parent.document.images.followImg<?=$_GET['r_id'];?>.loaded='yes';
-->
</SCRIPT>
</body>
</html>
PHP实现上传图片到数据库并显示输出的方法本文实例讲述了PHP实现上传图片到数据库并显示输出的方法。分享给大家供大家参考,具体如下:
1.
创建数据表
CREATE
TABLE
ccs_image
(
id
int(4)
unsigned
NOT
NULL
auto_increment,
description
varchar(250)
default
NULL,
bin_data
longblob,
filename
varchar(50)
default
NULL,
filesize
varchar(50)
default
NULL,
filetype
varchar(50)
default
NULL,
PRIMARY
KEY
(id)
)engine=myisam
DEFAULT
charset=utf8
2.
用于上传图片到服务器的页面
upimage.html
<!doctype
html>
<html
lang="en">
<head>
<meta
charset="UTF-8">
<meta
name="viewport"
content="width=device-width,
user-scalable=no,
initial-scale=1.0,
maximum-scale=1.0,
minimum-scale=1.0">
<meta
http-equiv="X-UA-Compatible"
content="ie=edge">
<style
type="text/css">
*{margin:
1%}
</style>
<title>Document</title>
</head>
<body>
<form
method="post"
action="upimage.php"
enctype="multipart/form-data">
描述:
<input
type="text"
name="form_description"
size="40">
<input
type="hidden"
name="MAX_FILE_SIZE"
value="1000000">
<br>
上传文件到数据库:
<input
type="file"
name="form_data"
size="40"><br>
<input
type="submit"
name="submit"
value="submit">
</form>
</body>
</html>
3.
处理图片上传的php
upimage.php
<?php
if
(isset($_POST['submit']))
{
$form_description
=
$_POST['form_description'];
$form_data_name
=
$_FILES['form_data']['name'];
$form_data_size
=
$_FILES['form_data']['size'];
$form_data_type
=
$_FILES['form_data']['type'];
$form_data
=
$_FILES['form_data']['tmp_name'];
$dsn
=
'mysql:dbname=test;host=localhost';
$pdo
=
new
PDO($dsn,
'root',
'root');
$data
=
addslashes(fread(fopen($form_data,
"r"),
filesize($form_data)));
//echo
"mysqlPicture=".$data;
$result
=
$pdo->query("INSERT
INTO
ccs_image
(description,bin_data,filename,filesize,filetype)
VALUES
('$form_description','$data','$form_data_name','$form_data_size','$form_data_type')");
if
($result)
{
echo
"图片已存储到数据库";
}
else
{
echo
"请求失败,请重试";
注:图片是以二进制blob形式存进数据库的,像这样
4.
显示图片的php
getimage.php
<?php
$id
=2;//
$_GET['id'];
为简洁,直接将id写上了,正常应该是通过用户填入的id获取的
$dsn='mysql:dbname=test;host=localhost';
$pdo=new
PDO($dsn,'root','root');
$query
=
"select
bin_data,filetype
from
ccs_image
where
id=2";
$result
=
$pdo->query($query);
$result=$result->fetchAll(2);
//
var_dump($result);
$data
=
$result[0]['bin_data'];
$type
=
$result[0]['filetype'];
Header(
"Content-type:
$type");
echo
$data;
到浏览器查看已经上传的图片,看是否可以显示
是没有问题的,证明图片已经以二进制的形式存储到数据库了
更多关于PHP相关内容感兴趣的读者可查看本站专题:《php+mysql数据库操作入门教程》、《php+mysqli数据库程序设计技巧总结》、《php面向对象程序设计入门教程》、《PHP数组(Array)操作技巧大全》、《php字符串(string)用法总结》及《php常见数据库操作技巧汇总》
希望本文所述对大家PHP程序设计有所帮助。
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php中插入图片的代码是什么?php中插入图片的代码是什么?
PHP插入图片,实际还是输出HTML代码
比如:
echo '<img src='/data/upload/help/202303/13/a3e22c08cb00cb681eef7010e0570f62.gir' width="100" height="100">';
还可以直接用PHP生成图片显示出来
php的gd库可以生成多种图像文件,如gif,png,jpg,wbmp,xpm等,下面来看一个生成正方形的文件。
<?php
$height = 300;
$width = 300;
//创建背景图
$im = ImageCreateTrueColor($width, $height);
//分配颜色
$white = ImageColorAllocate ($im, 255, 255, 255);
$blue = ImageColorAllocate ($im, 0, 0, 64);
//绘制颜色至图像中
ImageFill($im, 0, 0, $blue);
//绘制字符串:Hello,PHP
ImageString($im, 10, 100, 120, 'Hello,PHP', $white);
//输出图像,定义头
Header ('Content-type: image/png');
//将图像发送至浏览器
ImagePng($im);
//清除资源
ImageDestroy($im);
?>
php 如何通过程序对图片进行Byte[] 格式的处理其实你为什么非要BYTE格式处理呢,作图之类应该交给PS等软件,不过楼主硬是要一个例子,请看下面代码:
<?
if(!file_exists('test.jpg'))
{
fopen('test.jpg');
}
$fp = fopen('test.jpg', 'w');
fwrite($fp, $byte);
fclose($fp);
header ("Content-type: image/jpg");
echo $byte;
?>
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