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php数据库图片循环代码 php处理图片的库

PHP照片循环显示问题,如何用AJAX循环显示上一张下一张照片

兄弟,你要注意区分好php和JS的区别啊。帮你搞定了。

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//wp_442057835.php

!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ""

html xmlns=""

head

titleAjax Get Picture/title

meta http-equiv="Content-Type" content="text/html; charset=utf-8" /

meta http-equiv="Content-Language" content="zh-CN" /

/head

body

script

function last_pic() {

userid = document.getElementById("user_pic").getAttribute("imgid"); //使用imgid存储当前照片搜携id

xmlHttp=GetXmlHttpObject();

if (xmlHttp==null) {

alert ("Browser does not support HTTP Request");

return null;

}

var q="1";

var url="wp_442057835_process.php?q="+q+"u=弯漏棚"+userid+"sid="+Math.random();

xmlHttp.onreadystatechange=stateChanged;

xmlHttp.open("GET",url,true);

xmlHttp.send(null);

}

function next_pic() {

userid = document.getElementById("user_pic").getAttribute("imgid");

xmlHttp=GetXmlHttpObject();

if (xmlHttp==null) {

alert ("Browser does not support HTTP Request");

return null;

}

var q="2";

var url="wp_442057835_process.php?q="+q+"u="+userid+"sid="+Math.random();

xmlHttp.onreadystatechange=stateChanged;

xmlHttp.open("GET",url,true);

xmlHttp.send(null);

}

function stateChanged() {

if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){

var nuserid=xmlHttp.responseText;

var newImage = document.getElementById("user_pic");

newImage.setAttribute("src", "user_pic/"+nuserid+".jpg");

newImage.setAttribute("imgid", nuserid);

}

}

function GetXmlHttpObject(){

var request;

var browser = navigator.appName;

if(browser == "Microsoft Internet Explorer"){

var arrVersions = ["Microsoft.XMLHTTP","MSXML2.XMLHttp.4.0",

"MSXML2.XMLHttp.3.0","MSXML2.XMLHttp.5.0"];

for(var i=0;i arrVersions.length;i++){

try{

request = new ActiveXObject(arrVersions[i]);

return request;

}catch(exception){

//忽略,埋则继续

}

}

}else{

request = new XMLHttpRequest();

return request;

}

}

/script

div id="pic_show"

a href="javascript:;" onclick="last_pic(); return false;" 上一张/a

img src="?php echo "user_pic/1.jpg" ?" alt="修改头像" hspace="7" id="user_pic" width="200px" height="100px" imgid="1"/

a href="javascript:;" onclick="next_pic(); return false;" 下一张/a

/body

/html

//wp_442057835_process.php

?php

header("content-type:textml;charset=utf-8");

include("db.php");

//echo $_GET["q"];

//echo $_GET["u"];

$userid=$_GET["u"];

if($_GET["q"]==1)

{

$lquery=mysql_query("SELECT * FROM usermember WHERE userid $userid ORDER BY userid DESC LIMIT 1 ");

$last_user =mysql_fetch_object($lquery);

$last_userid=$last_user-userid;

if(empty($last_userid)) $last_userid = $userid;

echo $last_userid;

}

if($_GET["q"]=="2")

{

$nquery=mysql_query("SELECT * FROM usermember WHERE userid $userid ORDER BY userid ASC LIMIT 1 ");

$next_user =mysql_fetch_object($nquery);

$next_userid=$next_user-userid;

if(empty($next_userid)) $next_userid = $userid;

echo $next_userid;

}

PHP循环输出数据库的图片和名称

style='width:60px;float:$f;' 这里者型的郑租$f变量喊嫌兆放在单引号中,php不是解析不了吗?把$f拿出来然后拼接一下吧, style='width:60px;float:‘“.$f.";

求教php首页上想让两张图片循环滚动代码怎么写啊

可以使用flexslider ,代码和下边类山卜似

div class="slider"

div class="flexslider flexslider2"

ul class="slides item"

?php foreach($slide as $v) { ?

lia target="_bland" href="?php echo $v['Url']; ?"逗物穗img src="蚂悄?php echo '../'.$v['ImagePath']; ?" width="960" height="250"/a/li

?php } ?

/ul

/div

/div


本文名称:php数据库图片循环代码 php处理图片的库
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