Php 生成缩略图，将其复制到目录&；将其保存到数据库
我想使用一个预先编写的脚本来生成一个图像的缩略图，我需要根据自己的需要修改它，让它将保存的文件复制到另一个目录，并将文件名保存到mysql数据库。但我不确定在脚本中的什么地方可以这样做，因为我无法确定脚本何时输出实际文件（缺乏技能） 任何帮助都会被感激的，莉亚 我想添加到脚本中的代码如下：Php 生成缩略图，将其复制到目录&；将其保存到数据库,php,Php,我想使用一个预先编写的脚本来生成一个图像的缩略图，我需要根据自己的需要修改它，让它将保存的文件复制到另一个目录，并将文件名保存到mysql数据库。但我不确定在脚本中的什么地方可以这样做，因为我无法确定脚本何时输出实际文件（缺乏技能） 任何帮助都会被感激的，莉亚 我想添加到脚本中的代码如下： if( $new_height == "50" && $new_width == "50" ) { // I WILL WRITE CODE HERE FOR SOME QUERY, AND
if( $new_height == "50" && $new_width == "50" ) {
// I WILL WRITE CODE HERE FOR SOME QUERY, AND TO COPY FILE
}
/*
TimThumb script created by Tim McDaniels and Darren Hoyt with tweaks by Ben Gillbanks
http://code.google.com/p/timthumb/
MIT License: http://www.opensource.org/licenses/mit-license.php
Paramters
---------
w: width
h: height
zc: zoom crop (0 or 1)
q: quality (default is 75 and max is 100)
HTML example: <img src="/scripts/timthumb.php?src=/images/whatever.jpg&w=150&h=200&zc=1" alt="" />
*/
/*
$sizeLimits = array(
"100x100",
"150x150",
);
*/
define ('CACHE_SIZE', 250); // number of files to store before clearing cache
define ('CACHE_CLEAR', 5); // maximum number of files to delete on each cache clear
define ('VERSION', '1.09'); // version number (to force a cache refresh
$imageFilters = array(
"1" => array(IMG_FILTER_NEGATE, 0),
"2" => array(IMG_FILTER_GRAYSCALE, 0),
"3" => array(IMG_FILTER_BRIGHTNESS, 1),
"4" => array(IMG_FILTER_CONTRAST, 1),
"5" => array(IMG_FILTER_COLORIZE, 4),
"6" => array(IMG_FILTER_EDGEDETECT, 0),
"7" => array(IMG_FILTER_EMBOSS, 0),
"8" => array(IMG_FILTER_GAUSSIAN_BLUR, 0),
"9" => array(IMG_FILTER_SELECTIVE_BLUR, 0),
"10" => array(IMG_FILTER_MEAN_REMOVAL, 0),
"11" => array(IMG_FILTER_SMOOTH, 0),
);
// sort out image source
$src = get_request("src", "");
if($src == "" || strlen($src) <= 3) {
displayError("no image specified");
}
// clean params before use
$src = cleanSource($src);
// last modified time (for caching)
$lastModified = filemtime($src);
// get properties
$new_width = preg_replace("/[^0-9]+/", "", get_request("w", 0));
$new_height = preg_replace("/[^0-9]+/", "", get_request("h", 0));
$zoom_crop = preg_replace("/[^0-9]+/", "", get_request("zc", 1));
$quality = preg_replace("/[^0-9]+/", "", get_request("q", 80));
$filters = get_request("f", "");
if ($new_width == 0 && $new_height == 0) {
$new_width = 100;
$new_height = 100;
}
// set path to cache directory (default is ./cache)
// this can be changed to a different location
$cache_dir = './cache';
// get mime type of src
$mime_type = mime_type($src);
// check to see if this image is in the cache already
check_cache( $cache_dir, $mime_type );
// if not in cache then clear some space and generate a new file
cleanCache();
ini_set('memory_limit', "30M");
// make sure that the src is gif/jpg/png
if(!valid_src_mime_type($mime_type)) {
displayError("Invalid src mime type: " .$mime_type);
}
// check to see if GD function exist
if(!function_exists('imagecreatetruecolor')) {
displayError("GD Library Error: imagecreatetruecolor does not exist");
}
if(strlen($src) && file_exists($src)) {
// open the existing image
$image = open_image($mime_type, $src);
if($image === false) {
displayError('Unable to open image : ' . $src);
}
// Get original width and height
$width = imagesx($image);
$height = imagesy($image);
// don't allow new width or height to be greater than the original
if( $new_width > $width ) {
$new_width = $width;
}
if( $new_height > $height ) {
$new_height = $height;
}
// generate new w/h if not provided
if( $new_width && !$new_height ) {
$new_height = $height * ( $new_width / $width );
} elseif($new_height && !$new_width) {
$new_width = $width * ( $new_height / $height );
} elseif(!$new_width && !$new_height) {
$new_width = $width;
$new_height = $height;
}
// create a new true color image
$canvas = imagecreatetruecolor( $new_width, $new_height );
imagealphablending($canvas, false);
// Create a new transparent color for image
$color = imagecolorallocatealpha($canvas, 0, 0, 0, 127);
// Completely fill the background of the new image with allocated color.
imagefill($canvas, 0, 0, $color);
// Restore transparency blending
imagesavealpha($canvas, true);
if( $zoom_crop ) {
$src_x = $src_y = 0;
$src_w = $width;
$src_h = $height;
$cmp_x = $width / $new_width;
$cmp_y = $height / $new_height;
// calculate x or y coordinate and width or height of source
if ( $cmp_x > $cmp_y ) {
$src_w = round( ( $width / $cmp_x * $cmp_y ) );
$src_x = round( ( $width - ( $width / $cmp_x * $cmp_y ) ) / 2 );
} elseif ( $cmp_y > $cmp_x ) {
$src_h = round( ( $height / $cmp_y * $cmp_x ) );
$src_y = round( ( $height - ( $height / $cmp_y * $cmp_x ) ) / 2 );
}
imagecopyresampled( $canvas, $image, 0, 0, $src_x, $src_y, $new_width, $new_height, $src_w, $src_h );
} else {
// copy and resize part of an image with resampling
imagecopyresampled( $canvas, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height );
}
if ($filters != "") {
// apply filters to image
$filterList = explode("|", $filters);
foreach($filterList as $fl) {
$filterSettings = explode(",", $fl);
if(isset($imageFilters[$filterSettings[0]])) {
for($i = 0; $i < 4; $i ++) {
if(!isset($filterSettings[$i])) {
$filterSettings[$i] = null;
}
}
switch($imageFilters[$filterSettings[0]][1]) {
case 1:
imagefilter($canvas, $imageFilters[$filterSettings[0]][0], $filterSettings[1]);
break;
case 2:
imagefilter($canvas, $imageFilters[$filterSettings[0]][0], $filterSettings[1], $filterSettings[2]);
break;
case 3:
imagefilter($canvas, $imageFilters[$filterSettings[0]][0], $filterSettings[1], $filterSettings[2], $filterSettings[3]);
break;
default:
imagefilter($canvas, $imageFilters[$filterSettings[0]][0]);
break;
}
}
}
}
// output image to browser based on mime type
show_image($mime_type, $canvas, $cache_dir);
// remove image from memory
imagedestroy($canvas);
} else {
if(strlen($src)) {
displayError("image " . $src . " not found");
} else {
displayError("no source specified");
}
}
/**
*
*/
function show_image($mime_type, $image_resized, $cache_dir) {
global $quality;
// check to see if we can write to the cache directory
$is_writable = 0;
$cache_file_name = $cache_dir . '/' . get_cache_file();
if(touch($cache_file_name)) {
// give 666 permissions so that the developer
// can overwrite web server user
chmod($cache_file_name, 0666);
$is_writable = 1;
} else {
$cache_file_name = NULL;
header('Content-type: ' . $mime_type);
}
$quality = floor($quality * 0.09);
imagepng($image_resized, $cache_file_name, $quality);
if($is_writable) {
show_cache_file($cache_dir, $mime_type);
}
imagedestroy($image_resized);
displayError("error showing image");
}
/**
*
*/
function get_request( $property, $default = 0 ) {
if( isset($_REQUEST[$property]) ) {
return $_REQUEST[$property];
} else {
return $default;
}
}
/**
*
*/
function open_image($mime_type, $src) {
if(stristr($mime_type, 'gif')) {
$image = imagecreatefromgif($src);
} elseif(stristr($mime_type, 'jpeg')) {
@ini_set('gd.jpeg_ignore_warning', 1);
$image = imagecreatefromjpeg($src);
} elseif( stristr($mime_type, 'png')) {
$image = imagecreatefrompng($src);
}
return $image;
}
/**
* clean out old files from the cache
* you can change the number of files to store and to delete per loop in the defines at the top of the code
*/
function cleanCache() {
$files = glob("cache/*", GLOB_BRACE);
$yesterday = time() - (24 * 60 * 60);
if (count($files) > 0) {
usort($files, "filemtime_compare");
$i = 0;
if (count($files) > CACHE_SIZE) {
foreach ($files as $file) {
$i ++;
if ($i >= CACHE_CLEAR) {
return;
}
if (filemtime($file) > $yesterday) {
return;
}
unlink($file);
}
}
}
}
/**
* compare the file time of two files
*/
function filemtime_compare($a, $b) {
return filemtime($a) - filemtime($b);
}
/**
* determine the file mime type
*/
function mime_type($file) {
if (stristr(PHP_OS, 'WIN')) {
$os = 'WIN';
} else {
$os = PHP_OS;
}
$mime_type = '';
if (function_exists('mime_content_type')) {
$mime_type = mime_content_type($file);
}
// use PECL fileinfo to determine mime type
if (!valid_src_mime_type($mime_type)) {
if (function_exists('finfo_open')) {
$finfo = finfo_open(FILEINFO_MIME);
$mime_type = finfo_file($finfo, $file);
finfo_close($finfo);
}
}
// try to determine mime type by using unix file command
// this should not be executed on windows
if (!valid_src_mime_type($mime_type) && $os != "WIN") {
if (preg_match("/FREEBSD|LINUX/", $os)) {
$mime_type = trim(@shell_exec('file -bi "' . $file . '"'));
}
}
// use file's extension to determine mime type
if (!valid_src_mime_type($mime_type)) {
// set defaults
$mime_type = 'image/png';
// file details
$fileDetails = pathinfo($file);
$ext = strtolower($fileDetails["extension"]);
// mime types
$types = array(
'jpg' => 'image/jpeg',
'jpeg' => 'image/jpeg',
'png' => 'image/png',
'gif' => 'image/gif'
);
if (strlen($ext) && strlen($types[$ext])) {
$mime_type = $types[$ext];
}
}
return $mime_type;
}
/**
*
*/
function valid_src_mime_type($mime_type) {
if (preg_match("/jpg|jpeg|gif|png/i", $mime_type)) {
return true;
}
return false;
}
/**
*
*/
function check_cache($cache_dir, $mime_type) {
// make sure cache dir exists
if (!file_exists($cache_dir)) {
// give 777 permissions so that developer can overwrite
// files created by web server user
mkdir($cache_dir);
chmod($cache_dir, 0777);
}
show_cache_file($cache_dir, $mime_type);
}
/**
*
*/
function show_cache_file($cache_dir) {
$cache_file = $cache_dir . '/' . get_cache_file();
if (file_exists($cache_file)) {
$gmdate_mod = gmdate("D, d M Y H:i:s", filemtime($cache_file));
if(! strstr($gmdate_mod, "GMT")) {
$gmdate_mod .= " GMT";
}
if (isset($_SERVER["HTTP_IF_MODIFIED_SINCE"])) {
// check for updates
$if_modified_since = preg_replace("/;.*$/", "", $_SERVER["HTTP_IF_MODIFIED_SINCE"]);
if ($if_modified_since == $gmdate_mod) {
header("HTTP/1.1 304 Not Modified");
exit;
}
}
$fileSize = filesize($cache_file);
// send headers then display image
header("Content-Type: image/png");
header("Accept-Ranges: bytes");
header("Last-Modified: " . $gmdate_mod);
header("Content-Length: " . $fileSize);
header("Cache-Control: max-age=9999, must-revalidate");
header("Expires: " . $gmdate_mod);
readfile($cache_file);
exit;
}
}
/**
*
*/
function get_cache_file() {
global $lastModified;
static $cache_file;
if(!$cache_file) {
$cachename = $_SERVER['QUERY_STRING'] . VERSION . $lastModified;
$cache_file = md5($cachename) . '.png';
}
return $cache_file;
}
/**
* check to if the url is valid or not
*/
function valid_extension ($ext) {
if (preg_match("/jpg|jpeg|png|gif/i", $ext)) {
return TRUE;
} else {
return FALSE;
}
}
/**
* tidy up the image source url
*/
function cleanSource($src) {
// remove slash from start of string
if(strpos($src, "/") == 0) {
$src = substr($src, -(strlen($src) - 1));
}
// remove http/ https/ ftp
$src = preg_replace("/^((ht|f)tp(s|):\/\/)/i", "", $src);
// remove domain name from the source url
$host = $_SERVER["HTTP_HOST"];
$src = str_replace($host, "", $src);
$host = str_replace("www.", "", $host);
$src = str_replace($host, "", $src);
// don't allow users the ability to use '../'
// in order to gain access to files below document root
// src should be specified relative to document root like:
// src=images/img.jpg or src=/images/img.jpg
// not like:
// src=../images/img.jpg
$src = preg_replace("/\.\.+\//", "", $src);
// get path to image on file system
$src = get_document_root($src) . '/' . $src;
return $src;
}
/**
*
*/
function get_document_root ($src) {
// check for unix servers
if(@file_exists($_SERVER['DOCUMENT_ROOT'] . '/' . $src)) {
return $_SERVER['DOCUMENT_ROOT'];
}
// check from script filename (to get all directories to timthumb location)
$parts = array_diff(explode('/', $_SERVER['SCRIPT_FILENAME']), explode('/', $_SERVER['DOCUMENT_ROOT']));
$path = $_SERVER['DOCUMENT_ROOT'] . '/';
foreach ($parts as $part) {
$path .= $part . '/';
if (file_exists($path . $src)) {
return $path;
}
}
// the relative paths below are useful if timthumb is moved outside of document root
// specifically if installed in wordpress themes like mimbo pro:
// /wp-content/themes/mimbopro/scripts/timthumb.php
$paths = array(
".",
"..",
"../..",
"../../..",
"../../../..",
"../../../../.."
);
foreach($paths as $path) {
if(@file_exists($path . '/' . $src)) {
return $path;
}
}
// special check for microsoft servers
if(!isset($_SERVER['DOCUMENT_ROOT'])) {
$path = str_replace("/", "\\", $_SERVER['ORIG_PATH_INFO']);
$path = str_replace($path, "", $_SERVER['SCRIPT_FILENAME']);
if( @file_exists( $path . '/' . $src ) ) {
return $path;
}
}
displayError('file not found ' . $src);
}
/**
* generic error message
*/
function displayError($errorString = '') {
header('HTTP/1.1 400 Bad Request');
die($errorString);
}
/*
TimMcDaniels和Darren Hoyt创建的TimThumb脚本，由Ben Gillbanks调整
http://code.google.com/p/timthumb/
麻省理工学院许可证：http://www.opensource.org/licenses/mit-license.php
参数
---------
w：宽度
h:高度
zc：缩放裁剪（0或1）
q：质量（默认值为75，最大值为100）
HTML示例：
*/
/*
$sizeLimits=数组(
“100x100”，
“150x150”，
);
*/
定义（'CACHE_SIZE'，250）；//清除缓存之前要存储的文件数
定义（'CACHE_CLEAR'，5）；//清除每个缓存时要删除的最大文件数
定义（'VERSION'，'1.09'）；//版本号（强制缓存刷新）
$imageFilters=array(
“1”=>数组（IMG_FILTER_NEGATE，0），
“2”=>阵列（IMG_过滤器_灰度，0），
“3”=>阵列（IMG_过滤器_亮度，1），
“4”=>阵列（IMG_过滤器_对比度，1），
“5”=>数组（IMG_过滤器_着色，4），
“6”=>数组（IMG_FILTER_EDGEDETECT，0），
“7”=>阵列（IMG_过滤器_浮雕，0），
“8”=>阵列（IMG_滤波器_高斯_模糊，0），
“9”=>阵列（IMG_过滤器_选择性_模糊，0），
“10”=>数组（IMG_FILTER_MEAN_remove，0），
“11”=>数组（IMG_FILTER_SMOOTH，0），
);
//整理图像源
$src=get_请求（“src”，”）；
如果（$src==“”| | strlen（$src）'image/jpeg'，
'jpeg'=>'图像/jpeg'，
'png'=>'image/png'，
'gif'=>'image/gif'
);
if（strlen（$ext）和&strlen（$type[$ext]））{
$mime_type=$types[$ext]；
}
}
返回$mime_类型；
}
/**
*
*/
函数有效\u src\u mime\u类型（$mime\u类型）{
if（preg|u match（“/jpg | jpeg | gif | png/i，$mime|u type））{
返回true；
}
返回false；
}
/**
*
*/
函数检查\u缓存（$cache\u dir，$mime\u type）{
//确保缓存目录存在
如果（！file_存在（$cache_dir））{
//授予777权限，以便开发人员可以覆盖
//由web服务器用户创建的文件
mkdir（$cache_dir）；
chmod（$cache_dir，0777）；
}
显示缓存文件（$cache\u dir，$mime\u type）；
}
/**
*
*/
函数show\u cache\u file（$cache\u dir）{
$cache_file=$cache_dir.'/'。获取_cache_file（）；
如果（文件_存在（$cache_文件））{
$gmdate_mod=gmdate（“D，D M Y H:i:s”，filemtime（$cache_file））；
如果（！strstr（$gmdate_mod，“GMT”））{
$gmdate_mod.=“GMT”；
}
如果（isset（$\u服务器[“HTTP\u如果\u修改了\u自”]））{
//检查更新
$if_modified_since=preg_replace（“/；.*$/”，“”，$服务器[“HTTP_if_modified_since”]）；
if（$if_modified_since==$gmdate_mod）{
标题（“HTTP/1.1 304未修改”）；
出口
}
}
$fileSize=fileSize（$cache\u file）；
//发送标题，然后显示图像
标题（“内容类型：图像/png”）；
标题（“接受范围：字节”）；
标题（“上次修改：.$gmdate\u mod”）；
标题（“内容长度：.$fileSize”）；
标头（“缓存控制：最大年龄=9999，必须重新验证”）；
标题（“到期：.$gmdate\u mod”）；
readfile（$cache\u文件）；
出口
}
}
/**
*
*/
函数get_cache_file（）{
全球$LASTMODIFED；
静态$cache_文件；
如果（！$cache\u文件）{
$cachename=$\u服务器['QUERY\u STRING']。版本。$lastModified；
$cache_file=md5（$cachename）。'.png'；
}
返回$cache_文件；
}
/**
*检查url是否有效
*/
函数有效扩展名（$ext）{
if（预匹配（“/jpg | jpeg | png | gif/i，$ext））{
返回TRUE；
}否则{
返回FALSE；
}
}
/**
*整理图像源url
*/
函数cleanSource（$src）{
//删除字符串开头的斜杠
if（strpos（$src，“/”）==0）{
$src=substr（$src，-（strlen（$src）-1））；
}
//删除http/https/ftp
$src=preg|u replace（“/^（（ht|f）tp（s）：\/\/）/i“，”，$src）；
//从源url中删除域名
$host=$\u服务器[“HTTP\u主机”]；
$src=str_replace（$host，“，$src）；
$host=str_replace（“www.，”，$host）；
$src=str_replace（$host，“，$src）；
//不允许用户使用“../”功能
//以便访问文档根目录下的文件
//应相对于文档根指定src，如：
//src=images/img.jpg或src=/images/img.jpg
//不像：
//src=../images/img.jpg
$src=preg\u replace（“/\.\.+\/”，“，$src”）；
//获取文件系统上映像的路径
$src=get_document_root（$src）。“/”。$src；
返回$src；
}
/**
*
*/
函数get\u document\u root（$src）{
//检查unix服务器
如果（@file_存在（$_服务器['DOCUMENT_ROOT']./'.$src））{
返回$_SERVER['DOCUMENT_ROOT']；
}
//从脚本文件名进行检查（以将所有目录获取到该位置）
$parts=array_diff（分解（'/'，$服务器['SCRIPT_FILENAME']），分解（'/'，$服务器['DOCUMENT_ROOT']）；
$path=$\u服务器['DOCUMENT\u ROOT']./'；
foreach（$parts作为$part）{
$path.=$part.'/'；
如果（文件_存在（$path.$src））{
返回$path；
}
}
//如果timthumb移动到文档根目录之外，下面的相对路径很有用
//特别是如果安装在wordpress主题中，如mimbo pro：
///wp content/themes/mimbopro/scripts/timtumb.php
$path=数组(
".",
"..",
"../..",
"../../..",
"../../../..",
"../../../../.."
);
foreach（$路径作为
function resize_save_jpeg( $sourcefile, $targetfile, $target_image_width, $target_image_height, $quality )
{
list( $source_image_width, $source_image_height, $source_image_type ) = getimagesize( $sourcefile );
switch ( $source_image_type )
{
case IMAGETYPE_GIF:
$source_gd_image = imagecreatefromgif( $sourcefile );
break;
case IMAGETYPE_JPEG:
$source_gd_image = imagecreatefromjpeg( $sourcefile );
break;
case IMAGETYPE_PNG:
$source_gd_image = imagecreatefrompng( $sourcefile );
break;
}
if ( $source_gd_image === false )
{
return false;
}
$source_aspect_ratio = $source_image_width / $source_image_height;
$target_aspect_ratio = $target_image_width / $target_image_height;
if ( $source_image_width <= $target_image_width && $source_image_height <= $target_image_height ) {
$target_image_width = $source_image_width;
$target_image_height = $source_image_height;
}
elseif ( $target_aspect_ratio > $source_aspect_ratio ) {
$target_image_width = ( int ) ( $target_image_height * $source_aspect_ratio );
}
else {
$target_image_height = ( int ) ( $target_image_width / $source_aspect_ratio );
}
$target_gd_image = imagecreatetruecolor( $target_image_width, $target_image_height );
imagecopyresampled( $target_gd_image, $source_gd_image, 0, 0, 0, 0, $target_image_width, $target_image_height, $source_image_width, $source_image_height );
imagejpeg( $target_gd_image, $targetfile, $quality );
imagedestroy( $source_gd_image );
imagedestroy( $target_gd_image );
return true;
}
$sourceFile = $_FILES[ 'Filedata' ][ 'tmp_name' ];
$fileInfo = getimagesize($_FILES[ 'Filedata' ][ 'tmp_name' ]);
$filename = md5(date("F d, Y H:i:s", time()));
$extension = getExts($fileInfo[2]);
$targetFile = "my/static/path".$filename.$extension;
// Get file extension from file binary.
function getExts($filetype)
{
switch ($filetype) {
case "1": return "gif"; break;
case "2": return "jpg"; break;
case "3": return "png"; break;
return "0"; break;
}
}