php怎么实现相册功能？
相册功能实现(包含php图片上传,后台管理,浏览和删除)教程例子包括五个部分：
一、相册首页
<html>
<head>
<meta charset="utf-8">
<title>相册首页</title>
<style>
body{
width:800px;
margin:0 auto;
test-align:center;
}
</style>
</head>
<body>
<h1>The simple photo album.</h1>
<center>
<?php
error_reporting(0);
if(!$_GET["page"]){
$page = 1;
}else
$page = $_GET["page"];
$filename = "data.dat";
$myfile = file($filename);
$z = $myfile[0];
if($z == NULL){
echo "目前记录条数为：0";
}else{
$temp = explode("||",$myfile[0]);
echo "共有".$temp[0]."条内容";
echo " ";
$p_count = ceil($temp[0]/8);
echo "分".$_count."页显示";
echo " ";
echo "当前显示第".$page."页";
echo " ";
echo "<br>";
if($page != ceil($temp[0]/8)){
$current_size = 8;
}else{
$current_size = $temp[0]%8;
}
if($current_size == 0){
$current_size = 8;
}
for($i=0;$i<ceil($current_size/4);$i++){
for($j=0;$j<4;$j++){
$temp = explode("||", $myfile[$i*4+$j+($page-1)*8]);
if(($i*4+$j+($page-1)*8)<$z){
$imgfile = "./images/".$temp[1];
$flag = getimagesize($imgfile);
echo "<a href=viewimage.php?id=".$temp[0]."><img src=/test/images/".$temp[1];
if($flag[0]>180||$flag[1]>100){
echo " width=180 height=".ceil($flag[1]*180/$flag[0]);
}
echo " border=\"0\"></a>";
}else{
echo "";
}
}
}
echo "</table>";
}
echo "<p>";
$prev_page = $page - 1;
$next_page = $page + 1;
if($page <= 1){
echo "第一页 | ";
}else{
echo "<a href='$PATH_INFO?page=1'>第一页</a> | ";
}
if($prev_page < 1){
echo "上一页 | ";
}else{
echo "<a href='$PATH_INFO?page=$prev_page'>上一页</a> | ";
}
if($next_page > $p_count){
echo "下一页 | ";
}else{
echo "<a href='$PATH_INFO?page=$next_page'>下一页</a> | ";
}
if($page >= $p_count){
echo "最后一页</p>\n";
}else{
echo "<a href='$PATH_INFO?page=$p_count'>最后一页</a></p>\n";
}
?>
</center>
<a href="upfile.php">Upload Files</a>
</body>
</html>二、后台管理
<html>
<head>
<meta charset="utf-8">
<title>后台处理页面</title>
</head>
<body>
<?php
error_reporting(1);
if($_FILES['upfile']['name'] == NULL){
echo "No file choice.";
echo "<a href='upfile.php'>返回</a>";
}else{
$filepath = "/Library/WebServer/Documents/test/images/";
$tmp_name = $_FILES['upfile']['tmp_name'];
$filename = $filepath.$_FILES['upfile']['name'];
// echo $filename;
if(move_uploaded_file($tmp_name,$filename)){
$dataname = "data.dat";
$myfile = file($dataname);
if($myfile[0] == ""){
$fp = fopen($dataname, "a+");
fwrite($fp,"1||".$_FILES['upfile']['name']."||".$_POST["content"]."||".date(Y年m月d日)."\n");
fclose($fp);
}else{
$temp = explode("||", $myfile[0]);
$temp[0]++;
$fp = fopen($dataname, "r");
$line_has = fread($fp,filesize("$dataname"));
fclose($fp);
$fp = fopen($dataname, "w");
fwrite($fp,$temp[0]."||".$_FILES['upfile']['name']."||".$_POST["content"]."||".date("Y年m月d日")."\n");
fwrite($fp,"$line_has");
fclose($fp);
}
echo "<p></p>";
echo "指定文件已经上传成功！";
echo "<p></p>";
echo "点<a href='index.php'>返回</a>";
}else{
echo "文件上传失败！";
}
}
?>
</body>
</html>三、图片上传
<html>
<head>
<meta charset="utf-8">
<title>相册上传页面</title>
</head>
<body>
<script language="javascript">
function Juge(theForm){
if(theForm.upfile.value==""){
alert("Please choice file!");
theForm.upfile.focus();
return (false);
}
if(theForm.content.value==""){
alert("Please input image information!");
theForm.content.focus();
return (false);
}
if(theForm.content.value.length>60){
alert("The information must less than 60 chars.");
theForm.content.focus();
return (false);
}
}
</script>
<center>
<h1>Image album upload page</h1>
<p>
<a href="index.php">返回首页</a>
<table border="1">
<form enctype="multipart/form-data" action="system.php" method="post" onsubmit="return Juge(this)">
<tr>
<td>选择图片：</td>
<td><input name="upfile" type="file"></td>
</tr>
<tr>
<td>输入说明：</td>
<td><input name="content" type="text">(*限30字)</td>
</tr>
<tr>
<td colspan="2">
<center>
<input type="submit" value="提交">
<input type="reset" value="重置">
</center>
</td>
</tr>
</form>
</table>
</p>
</center>
</body>
</html>四、图片浏览
<html>
<head>
<meta charset="utf-8">
<title>查看图片</title>
</head>
<body>
<center>
<h1>View images.</h1>
<?php
error_reporting(0);
if(!$_GET["id"]){
echo "No assign id.";
echo "<a href='index.php'>首页</a>";
exit();
}else{
?>
<a href="index.php">返回首页</a>
<a href="delimage.php?id=<?php echo $_GET['id'] ?>">删除图片</a><br>
<?php
$id = $_GET["id"];
$filename = "data.dat";
$myfile = file($filename);
$z = $myfile[0];
if($z == ""){
echo "目前记录条数为0";
}else{
$temp = explode("||", $myfile[$z-$id]);
echo "<p>"."文件名:".$temp[1]."</p>";
echo "<p><img src=/test/images/".$temp[1]."></p>";
echo "<p>图片简介:".$temp[2]."</p>";
echo "<p>上传日期:".$temp[3]."</p>";
}
}
?>
</center>
</body>
</html>五、删除图片
<html>
<head>
<meta charset="utf-8">
<title>删除图片</title>
</head>
<body>
<?php
error_reporting(0);
if(!$_GET["id"]){
echo "No id assign.";
echo "<br>";
echo "<a href='index.php'>首页</a>";
exit();
}else{
$id = $_GET["id"];
$filename = "data.dat";
$myfile = file($filename);
$z = $myfile[0];
if($z == NULL){
echo "目前记录条数为：0";
}else{
$temp = explode("||", $myfile[$z-$id]);
print_r($temp);
$filepath = "/Library/WebServer/Documents/test/images/";
$imgfile = $filepath.$temp[1];
echo $imgfile;
unlink($imgfile);
for($i=0;$i<($z-$id);$i++){
$temp2 = explode("||", $myfile[$i]);
$temp2[0]--;
if($temp2[0]>0)
$text2 = $text2.$temp2[0]."||".$temp2[1]."||".$temp2[2]."||".$temp2[3];
}
for($i=($z-$id+1);$i<$z;$i++){
$text1 = $text1.$myfile[$i];
}
$fp = fopen($filename, "w");
fwrite($fp, $text2);
fwrite($fp, $text1);
fclose($fp);
echo "指定文件已经删除成功！";
echo "<a href='index.php'>首页</a>";
}
}
?>
</body>
</html>更多相关知识，请访问PHP中文网！
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