php 上一篇与下一篇文章代码
基本知识:
就是对id对进行order by id desc 或 order by id asc进行排序,然后再判断比当前id> or小于当前文章id的
实例的sql语句如下:
select * from news where id<$id order by id desc limit 0,1
select * from news where id>$id order by id desc limit 0,1
--
-- 表的结构 `string_find`
--
CREATE TABLE IF NOT EXISTS `string_find` (
`id` int(4) NOT NULL auto_increment,
`charList` varchar(100) default NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=7 ;
--
-- 导出表中的数据 `string_find`
--
INSERT INTO `string_find` (`id`, `charList`) VALUES
(1, '邓先驱者'),
(2, '邓先驱者'),
(5, 'fdafdsaf'),
(6, 'www.111cn.net');
好了万事俱备了,下面来看一下操作方法
*/
mysql教程_pconnect('localhost','root','root') or die(mysql_error());
mysql_select_db('cc');
mysql_query("set names 'gbk'");
$cid =5;//是你当前文章的编号
$sql ="select * from string_find where id>$cid order by id desc limit 0,1"; //上一篇文章
$sql1 ="select * from string_find where id<$cid order by id asc limit 0,1";//下一篇文章
$result = mysql_query( $sql );
if( mysql_num_rows( $result ) )
{
$rs = mysql_fetch_array( $result );
echo "上一篇".$rs[0];
}
else
{
echo "没有了";
}
$result1 = mysql_query( $sql1 );
if( mysql_num_rows( $result1 ) )
{
$rs1 = mysql_fetch_array( $result1 );
echo "下一篇".$rs1[0];
}
else
{
echo "没有了";
}
本站原创文章转载注明来自www.111cn.net
$url ='http://www.111cn.net';
$body=@file_get_contents($url);
preg_match_all('/href=['"]?([^'"]*)['"]?>(.*)/i',$body,$b);
$nums = array();
foreach($b[1] as $u){
if(in_array($u,$nums)){
continue;
}
$nums[]=$u;
$title=strip_tags($u);
echo $title."</br>";
}
session 出现头信息已经发出的原因与cookie一样.
在php教程5中,所有php session 的注册表配置选项都是编程时可配置的,一般情况下,我们是不用修改其配置的.要了解php的session注册表配置选项,请参考手册的Session 会话处理函数处.
session的保存数据的时候,是通过系列化$_SESSION数组来存贮,所以有系列化所拥有的问题,可能有特殊字符的值要用base64_encode函数编码,读取的时候再用base64_decode解码
下面是一个简单的脚本,你应该在你的PHP代码开始的地方开始了一个PHP的会话。
<?php
session_start(); // start up your PHP session!
?>
这小片的代码将注册与服务器的用户的会话,让您开始储蓄用户信息和分配一个UID(独特的识别号码该用户的会话)。
存储会话变量
当你要存储在会话用户数据使用了$ _SESSION关联数组。这是你们两个存储和检索会话数据。在以前的PHP版本中还有其他方法来执行此存储操作,但它已被更新,这是正确的方式去做。
<?php
session_start();
$_SESSION['views'] = 1; // store session data
echo "Pageviews = ". $_SESSION['views']; //retrieve data
?>
看个简单购物车实例
<?php
session_start();
if(isset($_SESSION['views']))
$_SESSION['views'] = $_SESSION['views']+ 1;
else
$_SESSION['views'] = 1;
echo "views = ". $_SESSION['views'];
?>
<?php
session_start();
if(isset($_SESSION['cart']))
unset($_SESSION['cart']);
?>
<?php
session_start();
session_destroy();
?>
session使用实例
<?php
/**
* 效验session的合法性
*
*/
function sessionVerify() {
if(!isset($_SESSION['user_agent'])){
$_SESSION['user_agent'] = MD5($_SERVER['REMOTE_ADDR']
.$_SERVER['HTTP_USER_AGENT']);
}
/* 如果用户session ID是伪造,则重新分配session ID */
elseif ($_SESSION['user_agent'] != MD5($_SERVER['REMOTE_ADDR']
. $_SERVER['HTTP_USER_AGENT'])) {
session_regenerate_id();
}
}
/**
* 销毁session
* 三步完美实现,不可漏
*
*/
function sessionDestroy() {
session_destroy();
setcookie(session_name(),'',time()-3600);
$_SESSION = array();
}
?>
session解决了一个PHP允许你存储上以供日后使用(即用户名,购物车中的物品等)服务器的用户信息这个问题。不过,本次session的信息是暂时的,通常会被删除后,很快用户已经离开了网站,它使用会话。
重要的是要思考,如果session的临时存储是适用于您的网站。如果你需要一个较长期储存,你需要找到另一种解决方案,像一个MySQL数据库教程。
session的工作创造一个独特的识别码(UID)为每个访问者,并在此基础身份证储存变数。这有助于防止两个用户的数据获取与另一次混乱的时候访问同一网页。
注:如果您不与会话编程经验,不建议您使用在网站上,需要高度安全session,因为有安全漏洞,需要一些先进的技术,以堵塞。
启动一个PHP会话
在您可以开始在你的PHP会话存储用户信息,您必须首先启动了session。当您启动一个会话,它必须在您的代码的开头很之前任何HTML或文本,发送。
<?php
class pinyin {
var $data = array(array("a",-20319),array("ai",-20317),array("an",-20304),array("ang",-20295),array("ao",-20292),array("ba",-20283),array("bai",-20265),array("ban",-20257),array("bang",-20242),array("bao",-20230),array("bei",-20051),array("ben",-20036),array("beng",-20032),array("bi",-20026),array("bian",-20002),array("biao",-19990),array("bie",-19986),array("bin",-19982),array("bing",-19976),array("bo",-19805),array("bu",-19784),array("ca",-19775),array("cai",-19774),array("can",-19763),array("cang",-19756),array("cao",-19751),array("ce",-19746),array("ceng",-19741),array("cha",-19739),array("chai",-19728),array("chan",-19725),array("chang",-19715),array("chao",-19540),array("che",-19531),array("chen",-19525),array("cheng",-19515),array("chi",-19500),array("chong",-19484),array("chou",-19479),array("chu",-19467),array("chuai",-19289),array("chuan",-19288),array("chuang",-19281),array("chui",-19275),array("chun",-19270),array("chuo",-19263),array("ci",-19261),array("cong",-19249),array("cou",-19243),array("cu",-19242),array("cuan",-19238),array("cui",-19235),array("cun",-19227),array("cuo",-19224),array("da",-19218),array("dai",-19212),array("dan",-19038),array("dang",-19023),array("dao",-19018),array("de",-19006),array("deng",-19003),array("di",-18996),array("dian",-18977),array("diao",-18961),array("die",-18952),array("ding",-18783),array("diu",-18774),array("dong",-18773),array("dou",-18763),array("du",-18756),array("duan",-18741),array("dui",-18735),array("dun",-18731),array("duo",-18722),array("e",-18710),array("en",-18697),array("er",-18696),array("fa",-18526),array("fan",-18518),array("fang",-18501),array("fei",-18490),array("fen",-18478),array("feng",-18463),array("fo",-18448),array("fou",-18447),array("fu",-18446),array("ga",-18239),array("gai",-18237),array("gan",-18231),array("gang",-18220),array("gao",-18211),array("ge",-18201),array("gei",-18184),array("gen",-18183),array("geng",-18181),array("gong",-18012),array("gou",-17997),array("gu",-17988),array("gua",-17970),array("guai",-17964),array("guan",-17961),array("guang",-17950),array("gui",-17947),array("gun",-17931),array("guo",-17928),array("ha",-17922),array("hai",-17759),array("han",-17752),array("hang",-17733),array("hao",-17730),array("he",-17721),array("hei",-17703),array("hen",-17701),array("heng",-17697),array("hong",-17692),array("hou",-17683),array("hu",-17676),array("hua",-17496),array("huai",-17487),array("huan",-17482),array("huang",-17468),array("hui",-17454),array("hun",-17433),array("huo",-17427),array("ji",-17417),array("jia",-17202),array("jian",-17185),array("jiang",-16983),array("jiao",-16970),array("jie",-16942),array("jin",-16915),array("jing",-16733),array("jiong",-16708),array("jiu",-16706),array("ju",-16689),array("juan",-16664),array("jue",-16657),array("jun",-16647),array("ka",-16474),array("kai",-16470),array("kan",-16465),array("kang",-16459),array("kao",-16452),array("ke",-16448),array("ken",-16433),array("keng",-16429),array("kong",-16427),array("kou",-16423),array("ku",-16419),array("kua",-16412),array("kuai",-16407),array("kuan",-16403),array("kuang",-16401),array("kui",-16393),array("kun",-16220),array("kuo",-16216),array("la",-16212),array("lai",-16205),array("lan",-16202),array("lang",-16187),array("lao",-16180),array("le",-16171),array("lei",-16169),array("leng",-16158),array("li",-16155),array("lia",-15959),array("lian",-15958),array("liang",-15944),array("liao",-15933),array("lie",-15920),array("lin",-15915),array("ling",-15903),array("liu",-15889),array("long",-15878),array("lou",-15707),array("lu",-15701),array("lv",-15681),array("luan",-15667),array("lue",-15661),array("lun",-15659),array("luo",-15652),array("ma",-15640),array("mai",-15631),array("man",-15625),array("mang",-15454),array("mao",-15448),array("me",-15436),array("mei",-15435),array("men",-15419),array("meng",-15416),array("mi",-15408),array("mian",-15394),array("miao",-15385),array("mie",-15377),array("min",-15375),array("ming",-15369),array("miu",-15363),array("mo",-15362),array("mou",-15183),array("mu",-15180),array("na",-15165),array("nai",-15158),array("nan",-15153),array("nang",-15150),array("nao",-15149),array("ne",-15144),array("nei",-15143),array("nen",-15141),array("neng",-15140),array("ni",-15139),array("nian",-15128),array("niang",-15121),array("niao",-15119),array("nie",-15117),array("nin",-15110),array("ning",-15109),array("niu",-14941),array("nong",-14937),array("nu",-14933),array("nv",-14930),array("nuan",-14929),array("nue",-14928),array("nuo",-14926),array("o",-14922),array("ou",-14921),array("pa",-14914),array("pai",-14908),array("pan",-14902),array("pang",-14894),array("pao",-14889),array("pei",-14882),array("pen",-14873),array("peng",-14871),array("pi",-14857),array("pian",-14678),array("piao",-14674),array("pie",-14670),array("pin",-14668),array("ping",-14663),array("po",-14654),array("pu",-14645),array("qi",-14630),array("qia",-14594),array("qian",-14429),array("qiang",-14407),array("qiao",-14399),array("qie",-14384),array("qin",-14379),array("qing",-14368),array("qiong",-14355),array("qiu",-14353),array("qu",-14345),array("quan",-14170),array("que",-14159),array("qun",-14151),array("ran",-14149),array("rang",-14145),array("rao",-14140),array("re",-14137),array("ren",-14135),array("reng",-14125),array("ri",-14123),array("rong",-14122),array("rou",-14112),array("ru",-14109),array("ruan",-14099),array("rui",-14097),array("run",-14094),array("ruo",-14092),array("sa",-14090),array("sai",-14087),array("san",-14083),array("sang",-13917),array("sao",-13914),array("se",-13910),array("sen",-13907),array("seng",-13906),array("sha",-13905),array("shai",-13896),array("shan",-13894),array("shang",-13878),array("shao",-13870),array("she",-13859),array("shen",-13847),array("sheng",-13831),array("shi",-13658),array("shou",-13611),array("shu",-13601),array("shua",-13406),array("shuai",-13404),array("shuan",-13400),array("shuang",-13398),array("shui",-13395),array("shun",-13391),array("shuo",-13387),array("si",-13383),array("song",-13367),array("sou",-13359),array("su",-13356),array("suan",-13343),array("sui",-13340),array("sun",-13329),array("suo",-13326),array("ta",-13318),array("tai",-13147),array("tan",-13138),array("tang",-13120),array("tao",-13107),array("te",-13096),array("teng",-13095),array("ti",-13091),array("tian",-13076),array("tiao",-13068),array("tie",-13063),array("ting",-13060),array("tong",-12888),array("tou",-12875),array("tu",-12871),array("tuan",-12860),array("tui",-12858),array("tun",-12852),array("tuo",-12849),array("wa",-12838),array("wai",-12831),array("wan",-12829),array("wang",-12812),array("wei",-12802),array("wen",-12607),array("weng",-12597),array("wo",-12594),array("wu",-12585),array("xi",-12556),array("xia",-12359),array("xian",-12346),array("xiang",-12320),array("xiao",-12300),array("xie",-12120),array("xin",-12099),array("xing",-12089),array("xiong",-12074),array("xiu",-12067),array("xu",-12058),array("xuan",-12039),array("xue",-11867),array("xun",-11861),array("ya",-11847),array("yan",-11831),array("yang",-11798),array("yao",-11781),array("ye",-11604),array("yi",-11589),array("yin",-11536),array("ying",-11358),array("yo",-11340),array("yong",-11339),array("you",-11324),array("yu",-11303),array("yuan",-11097),array("yue",-11077),array("yun",-11067),array("za",-11055),array("zai",-11052),array("zan",-11045),array("zang",-11041),array("zao",-11038),array("ze",-11024),array("zei",-11020),array("zen",-11019),array("zeng",-11018),array("zha",-11014),array("zhai",-10838),array("zhan",-10832),array("zhang",-10815),array("zhao",-10800),array("zhe",-10790),array("zhen",-10780),array("zheng",-10764),array("zhi",-10587),array("zhong",-10544),array("zhou",-10533),array("zhu",-10519),array("zhua",-10331),array("zhuai",-10329),array("zhuan",-10328),array("zhuang",-10322),array("zhui",-10315),array("zhun",-10309),array("zhuo",-10307),array("zi",-10296),array("zong",-10281),array("zou",-10274),array("zu",-10270),array("zuan",-10262),array("zui",-10260),array("zun",-10256),array("zuo",-10254));
function get_one($num){
if($num>0&&$num<160){
return chr($num);
} elseif ($num<-20319||$num>-10247) {
return '';
} else {
for($i=count($this->data)-1;$i>=0;$i--){if($this->data[$i][1]<=$num)break;}
return $this->data[$i][0];
}
}
function conver($str) {
$ret="";
for($i=0;$i<strlen($str);$i++){
$p=ord(substr($str,$i,1));
if($p>160){
$q=ord(substr($str,++$i,1));
$p=$p*256+$q-65536;
}
$ret.=$this->get_one($p).' ';
}
return $ret;
}
}
?>
textclass.php
<?php
class CtbClass {
var $file='list.txt';
var $index;
//建立一个文件并写入输入
function null_write($new)
{
$f=fopen($this->file,"w");
flock($f,LOCK_EX);
fputs($f,$new);
fclose($f);
}
// 添加数据记录到文件末端
function add_write($new) {
$f=fopen($this->file,"a");
flock($f,LOCK_EX);
fputs($f,$new);
fclose($f);
}
// 配合readfile()的返回一起使用,把一行数据转换为一维数组
function make_array($line) {
$array = explode("x0E",$line);
return $array;
}
//把为一维数组转换一行数据
function join_array($line) {
$array = join("x0E",$line);
return $array;
}
// 返回数据文件的总行数
function getlines() {
$f=file($this->file);
return count($f);
}
// 返回下一行的数据记录(备用)
function next_line() {
$this->index=$this->index++;
return $this->get();
}
// 返回上一行的数据记录(备用)
function prev_line() {
$this->index=$this->index--;
return $this->get();
}
// 返回当前行的数据记录数据较小
function get() {
$f=fopen($this->file,"r");
flock($f,LOCK_SH);
for($i=0;$i<=$this->index;$i++) {
$rec=fgets($f,1024);
}
$line=explode("x0E",$rec);
fclose($f);
return $line;
}
// 返回当前行的数据记录数据较大
function get_big_file() {
$f=fopen($this->file,"r");
flock($f,LOCK_SH);
for($i=0;$i<=$this->index;$i++) {
$rec=fgets($f,1024*5);
}
$line=explode("x0E",$rec);
fclose($f);
return $line;
}
// 打开数据文件---以一维数组返回文件内容
function read_file() {
if (file_exists($this->file)) {
$line =file($this->file);
}
return $line;
}
// 打开数据文件---以二维数组返回文件内容
function openFile() {
if (file_exists($this->file)) {
$f =file($this->file);
$lines = array();
foreach ($f as $rawline) {
$tmpline = explode("x0E",$rawline);
array_push($lines, $tmpline);
}
}
return $lines;
}
// 传入一个数组,合并成一行数据,重写整个文件
function overwrite($array){
$newline = implode("x0E",$array);
$f = fopen($this->file,"w");
flock($f,LOCK_EX);
fputs($f,$newline);
fclose($f);
}
// 添加一行数据记录到文件末端
function add_line($array,$check_n=1) {
$s=implode("x0E",$array);
$f=fopen($this->file,"a");
flock($f,LOCK_EX);
fputs($f,$s);
if ($check_n==1) fputs($f,"n");
fclose($f);
}
// 插入一行数据记录到文件最前面
function insert_line($array) {
$newfile = implode("x0E",$array);
$f = fopen($this->file,"r");
flock($f,LOCK_SH);
while ($line = fgets($f,1024)) {
$newfile .= $line;
}
fclose($f);
$f = fopen($this->file,"w");
flock($f,LOCK_EX);
fputs($f,$newfile);
fclose($f);
}
// 更新所有符合条件的数据记录,适用于每行字节数据较大的情况
function update($column,$query_string,$update_array) {
$update_string = implode("x0E",$update_array);
$newfile = "";
$fc=file($this->file);
$f=fopen($this->file,"r");
flock($f,LOCK_SH);
for ($i=0;$i<count($fc);$i++) {
$list = explode("x0E",$fc[$i]);
if ($list[$column] != $query_string) {
$newfile = $newfile.chop($fc[$i])."n";
} else {
$newfile = $newfile.$update_string;
}
}
fclose($f);
$f=fopen($this->file,"w");
flock($f,LOCK_EX);
fputs($f,$newfile);
fclose($f);
}
// 更新所有符合条件的数据记录,适用于每行字节数据较小的情况
function update2($column,$query_string,$update_array) {
$newline = implode("x0E",$update_array);
$newfile = "";
$f = fopen($this->file,"r");
flock($f,LOCK_SH);
while ($line = fgets($f,1024)) {
$tmpLine = explode("x0E",$line);
if ($tmpLine[$column] == $query_string) {
$newfile .= $newline;
} else {
$newfile .= $line;
}
}
fclose($f);
$f = fopen($this->file,"w");
flock($f,LOCK_EX);
fputs($f,$newfile);
fclose($f);
}
// 删除所有符合条件的数据记录,适用于每行字节数据较大的情况
function delete($column,$query_string) {
$newfile = "";
$fc=file($this->file);
$f=fopen($this->file,"r");
flock($f,LOCK_SH);
for ($i=0;$i<count($fc);$i++) {
$list = explode("x0E",$fc[$i]);
if ($list[$column] != $query_string) {
$newfile = $newfile.chop($fc[$i])."n";
}
}
fclose($f);
$f=fopen($this->file,"w");
flock($f,LOCK_EX);
fputs($f,$newfile);
fclose($f);
}
// 删除所有符合条件的数据记录,适用于每行字节数据较小的情况
function delete2($column,$query_string){
$newfile = "";
$f = fopen($this->file,"r");
flock($f,LOCK_SH);
while ($line = fgets($f,1024)) {
$tmpLine = explode("x0E",$line);
if ($tmpLine[$column] != $query_string) {
$newfile .= $line;
}
}
fclose($f);
$f = fopen($this->file,"w");
flock($f,LOCK_EX);
fputs($f,$newfile);
fclose($f);
}
//取得一个文件里某个字段的最大值
function get_max_value($column) {
$tlines = file($this->file);
for ($i=0;$i<=count($tlines);$i++) {
$line=explode("x0E",$tlines[$i]);
$get_value[]=$line[$column];
}
$get_max_value = max($get_value);
return $get_max_value;
}
// 根据数据文件的某个字段是否包含$query_string进行查询,以二维数组返回所有符合条件的数据
function select($column, $query_string) {
$tline = $this->openfile();
$lines = array();
foreach ($tline as $line) {
if ($line[$column] == $query_string) {
array_push($lines, $line);
}
}
return $lines;
}
// 功能与function select()一样,速度可能略有提升
function select2($column, $query_string) {
if (file_exists($this->file)) {
$tline = $this->read_file();
foreach ($tline as $tmpLine) {
$line = $this->make_array($tmpLine);
if ($line[$column] == $query_string) {
$lines[]=$tmpLine;
}
}
}
return $lines;
}
// 根据数据文件的某个字段是否包含$query_string进行查询,以一维数组返回第一个符合条件的数据
function select_line($column, $query_string) {
$tline = $this->read_file();
foreach ($tline as $tmpLine) {
$line = $this->make_array($tmpLine);
if ($line[$column] == $query_string) {
return $line;
break;
}
}
}
// select next/prev line(next_prev ==> 1/next, 2/prev) by cx
function select_next_prev_line($column, $query_string, $next_prev) {
$tline = $this->read_file();
$line_key_end = count($tline) - 1;
$line_key = -1;
foreach ($tline as $tmpLine) {
$line_key++;
$line = $this->make_array($tmpLine);
if ($next_prev == 1) { // next?
if ($line[$column] == $query_string) {
if ($line_key == 0) {
return 0;
} else {
$line_key_up = $line_key - 1;
return $up_line;
}
} else {
$up_line = $line;
}
} elseif ($next_prev == 2) { // prev?
if ($line[$column] == $query_string) {
if ($line_key == $line_key_end) {
return 0;
} else {
$line_key_down = $line_key + 1;
break;
}
}
} else {
return 0;
}
}
$down_line = $this->make_array($tline[$line_key_down]);
return $down_line;
}
}
$file=fopen('list.txt',"a+");
if($file == FALSE)exit('<font color=red>无法创建或者打开list.txt</font>');
function __urljudge($url){
$suffixes="com|net|org|gov|biz|com.tw|com.hk|com.ru|net.tw|net.hk|net.ru|info|cn|com.cn|net.cn|org.cn|gov.cn|mobi|name|sh|ac|la|travel|tm|us|cc|tv|jobs|asia|hn|lc|hk|bz|com.hk|ws|tel|io|tw|ac.cn|bj.cn|sh.cn|tj.cn|cq.cn|he.cn|sx.cn|nm.cn|ln.cn|jl.cn|hl.cn|js.cn|zj.cn|ah.cn|fj.cn|jx.cn|sd.cn|ha.cn|hb.cn|hn.cn|gd.cn|gx.cn|hi.cn|sc.cn|gz.cn|yn.cn|xz.cn|sn.cn|gs.cn|qh.cn|nx.cn|xj.cn|tw.cn|hk.cn|mo.cn|org.hk";
if(!eregi("^(www.)?([A-Za-z0-9-])+.($suffixes)$",$url)){
echo "<script language='javascript'>alert('您输入的网址不符合规格,请重新输入!');</script>";
exit;
}else {return $url;}
}
function get_real_ip(){
$ip=false;
if(!empty($_SERVER["HTTP_CLIENT_IP"])){
$ip = $_SERVER["HTTP_CLIENT_IP"];
}
if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
$ips = explode (", ", $_SERVER['HTTP_X_FORWARDED_FOR']);
if ($ip) { array_unshift($ips, $ip); $ip = FALSE; }
for ($i = 0; $i < count($ips); $i++) {
if (!eregi ("^(10|172.16|192.168).", $ips[$i])) {
$ip = $ips[$i];
break;
}
}
}
return ($ip ? $ip : $_SERVER['REMOTE_ADDR']);
}
$ip=get_real_ip();
$text_class=new CtbClass();
$date=mktime (date(H)-24, date(i), date(s), date(m), date(d), date(Y));
$history=$text_class->openFile();
for ($i=0;$i<count($history);$i++){
if ($history[$i][2] < $date){
$text_class->delete2(2,$history[$i][2]);
}
}
?>
php+jquery在线切图代码[防dedecms]
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" lang="fr">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Cropper</title>
<!-- css -->
<link rel="stylesheet" type="text/css" href="http://yui.yahooapis.com/combo?2.6.0/build/reset-fonts-grids/reset-fonts-grids.css" />
<link rel="stylesheet" type="text/css" href="http://yui.yahooapis.com/2.5.2/build/resize/assets/skins/sam/resize.css" />
<link rel="stylesheet" type="text/css" href="http://yui.yahooapis.com/2.5.2/build/imagecropper/assets/skins/sam/imagecropper.css" />
<!-- js -->
<script type="text/javascript" src="http://yui.yahooapis.com/combo?2.5.2/build/yahoo-dom-event/yahoo-dom-event.js&2.5.2/build/dragdrop/dragdrop-min.js&2.5.2/build/element/element-beta-min.js&2.5.2/build/resize/resize-beta-min.js&2.5.2/build/imagecropper/imagecropper-beta-min.js&2.5.2/build/connection/connection-min.js&2.5.2/build/json/json-min.js"></script>
<style type="text/css">
a:link, a:visited, a:active{
color: #000;
text-decoration: none;
font-weight: bold;
}
a:hover{
color: #fff;
background-color: #000;
}
#hd{
font-size: 2em;
font-weight: bold;
text-align: left;
padding-bottom: 20px;
border-bottom: 1px solid #ccc;
margin: 10px 0 10px 0;
}
#uploadForm, #downloadLink{
text-align: center;
}
#imageContainer{
margin: 20px 0px 20px 0;
}
#ft{
margin-top: 10px;
padding-top: 10px;
border-top:1px solid #ccc;
text-align: center;
}
</style>
<script type="text/javascript">
uploader = {
carry: function(){
// set form
YAHOO.util.Connect.setForm('uploadForm', true);
// upload image
YAHOO.util.Connect.asyncRequest('POST', 'upload.php', {
upload: function(o){
// parse our json data
var jsonData = YAHOO.lang.JSON.parse(o.responseText);
// put image in our image container
YAHOO.util.Dom.get('imageContainer').innerHTML = '<img id="yuiImg" src="' + jsonData.image + '" width="' + jsonData.width + '" height="' + jsonData.height + '" alt="" />';
// init our photoshop
photoshop.init(jsonData.image);
// get first cropped image
photoshop.getCroppedImage();
}
});
}
};
photoshop = {
image: null,
crop: null,
//url: null,
init: function(image){
// set our image
photoshop.image = image;
// our image cropper from the uploaded image
photoshop.crop = new YAHOO.widget.ImageCropper('yuiImg');
photoshop.crop.on('moveEvent', function() {
// get updated coordinates
photoshop.getCroppedImage();
});
},
getCroppedImage: function(){
var coordinates = photoshop.getCoordinates();
var url = 'crop.php?image=' + photoshop.image + '&cropStartX=' + coordinates.left +'&cropStartY=' + coordinates.top +'&cropWidth=' + coordinates.width +'&cropHeight=' + coordinates.height;
YAHOO.util.Dom.get('downloadLink').innerHTML = '<a href="' + url + '">download cropped image</a>';
},
getCoordinates: function(){
return photoshop.crop.getCropCoords();
}
};
// add listeners
YAHOO.util.Event.on('uploadButton', 'click', uploader.carry);
</script>
</head>
<body class="yui-skin-sam">
<div id="doc4" class="yui-t7">
<div id="hd">
AJAX image cropper - YUI-based
</div>
<div id="bd">
<form action="upload.php" enctype="multipart/form-data" method="post" name="uploadForm" id="uploadForm">
Image : <input type="file" name="uploadImage" id="uploadImage" />
<input type="button" id="uploadButton" value="Upload"/>
</form>
<div id="imageContainer"></div>
<div id="downloadLink"></div>
</div>
<div id="ft">
<a href="http://htmlblog.net">HTML Blog</a>
</div>
</div>
</body>
</html>
上面为index.php文件
根据x,y,来用php重新绘图
<?php
// get variables
$imgfile = $_GET['image'];
$cropStartX = $_GET['cropStartX'];
$cropStartY = $_GET['cropStartY'];
$cropW = $_GET['cropWidth'];
$cropH = $_GET['cropHeight'];
// Create two images
$origimg = imagecreatefromjpeg($imgfile);
$cropimg = imagecreatetruecolor($cropW,$cropH);
// Get the original size
list($width, $height) = getimagesize($imgfile);
// Crop
imagecopyresized($cropimg, $origimg, 0, 0, $cropStartX, $cropStartY, $width, $height, $width, $height);
// force download nes image
header("Content-type: image/jpeg");
header('Content-Disposition: attachment; filename="'.$imgfile.'"');
imagejpeg($cropimg);
// destroy the images
imagedestroy($cropimg);
imagedestroy($origimg);
?>
这里是图片上的,
<?php
if(!empty($_FILES["uploadImage"])) {
// get file name
$filename = basename($_FILES['uploadImage']['name']);
// get extension
$ext = substr($filename, strrpos($filename, '.') + 1);
// check for jpg only
if ($ext == "jpg") {
// generate unique file name
$newName = 'images/'.time().'.'.$ext;
// upload files
if ((move_uploaded_file($_FILES['uploadImage']['tmp_name'], $newName))) {
// get height and width for image uploaded
list($width, $height) = getimagesize($newName);
// return json data
echo '{"image" : "'.$newName.'", "height" : "'.$height.'", "width" : "'.$width.'" }';
}
else {
echo '{"error" : "An error occurred while moving the files"}';
}
}
else {
echo '{"error" : "Invalid image format"}';
}
}
?>
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