PHP相册功能的实现方法：1、创建相册首页并实现分页效果；2、创建后台处理页面；3、实现相册上传页面；4、定义图片浏览功能；5、通过“unlink($imgfile);”等语句实现删除图片功能即可。
本文操作环境：Windows7系统、PHP7.1版、DELL G3电脑
相册功能实现(包含PHP图片上传,后台管理,浏览和删除)教程例子包括五个部分：
一、相册首页
<html>
<head>
<Meta charset=utf-8>
<title>相册首页</title>
<style>
body{
width:800px;
margin:0 auto;
test-align:center;
}
</style>
</head>
<body>
<h1>The simple photo album.</h1>
<center>
<?PHP
error_reporting(0);
if(!$_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($fp);
}
echo <p></p>;
echo 指定文件已经上传成功！;
echo <p></p>;
echo 点<a href='index.PHP'>返回</a>;
}else{
echo 文件上传失败！;
}
}
?>
</body>
</html><html>
<head>
<Meta charset=utf-8>
<title>相册上传页面</title>
</head>
<body>
<script language=javascript>
function Juge(theForm){
if(theForm.upfile.value==){
alert(Please choice file!);
theForm.upfile.focus();
return (false);
}
if(theForm.content.value==){
alert(Please input image information!);
theForm.content.focus();
return (false);
}
if(theForm.content.value.length>60){
alert(The information must less than 60 chars.);
theForm.content.focus();
return (false);
}
}
</script>
<center>
<h1>Image album upload page</h1>
<p>
<a href=index.PHP>返回首页</a>
<table border=1>
<form enctype=multipart/form-data action=system.PHP method=post onsubmit=return Juge(this)>
<tr>
<td>选择图片：</td>
<td><input name=upfile type=file></td>
</tr>
<tr>
<td>输入说明：</td>
<td><input name=content type=text>(*限30字)</td>
</tr>
<tr>
<td colspan=2>
<center>
<input type=submit value=提交>
<input type=reset value=重置>
</center>
</td>
</tr>
</form>
</table>
</p>
</center>
</body>
</html>四、图片浏览
<html>
<head>
<Meta charset=utf-8>
<title>查看图片</title>
</head>
<body>
<center>
<h1>View images.</h1>
<?PHP
error_reporting(0);
if(!$_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:.$temp[3].</p>;
}
}
?>
</center>
</body>
</html><html>
<head>
<Meta charset=utf-8>
<title>删除图片</title>
</head>
<body>
<?PHP
error_reporting(0);
if(!$_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>推荐学习：《PHP教程》
