Bagaimana untuk melaksanakan fungsi album foto php-masalah PHP-php.cn

Bagaimana untuk melaksanakan fungsi album foto php

藏色散人

Lepaskan： 2023-03-14 21:12:01

asal

2259 orang telah melayarinya

Cara melaksanakan fungsi album php: 1. Buat halaman utama album dan capai kesan paging 2. Buat halaman pemprosesan latar belakang; 5. Melalui "unlink( $imgfile);" dan kenyataan lain dapat merealisasikan fungsi memadam gambar.

Bagaimana untuk melaksanakan fungsi album foto php

Persekitaran pengendalian artikel ini: sistem Windows 7, PHP versi 7.1, komputer DELL G3

Cara melaksanakan php fungsi album foto?

Contoh tutorial pelaksanaan fungsi album (termasuk muat naik imej PHP, pengurusan latar belakang, penyemakan imbas dan pemadaman) merangkumi lima bahagian:

1 >

<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=&#39;$PATH_INFO?page=1&#39;>第一页</a> | ";
        }
        if($prev_page < 1){
            echo "上一页 | ";
        }else{
            echo "<a href=&#39;$PATH_INFO?page=$prev_page&#39;>上一页</a> | ";
        }
        if($next_page > $p_count){
            echo "下一页 | ";
        }else{
            echo "<a href=&#39;$PATH_INFO?page=$next_page&#39;>下一页</a> | ";
        }
        if($page >= $p_count){
            echo "最后一页</p>\n";
        }else{
            echo "<a href=&#39;$PATH_INFO?page=$p_count&#39;>最后一页</a></p>\n";
        }
    ?>
</center>
    <a href="upfile.php">Upload Files</a>
</body>
</html>

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2 , Pengurusan backend

<html>
<head>
    <meta charset="utf-8">
    <title>后台处理页面</title>
</head>
<body>
<?php
    error_reporting(1);
    if($_FILES[&#39;upfile&#39;][&#39;name&#39;] == NULL){
        echo "No file choice.";
        echo "<a href=&#39;upfile.php&#39;>返回</a>";
    }else{
        $filepath = "/Library/WebServer/Documents/test/images/";
        $tmp_name = $_FILES[&#39;upfile&#39;][&#39;tmp_name&#39;];
        $filename = $filepath.$_FILES[&#39;upfile&#39;][&#39;name&#39;];
//        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[&#39;upfile&#39;][&#39;name&#39;]."||".$_POST["content"]."||".date(Y年m月d日)."\n");
                fclose($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]."||".$_FILES[&#39;upfile&#39;][&#39;name&#39;]."||".$_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=&#39;index.php&#39;>返回</a>";
        }else{
            echo "文件上传失败！";
        }
    }
?>
</body>
</html>

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3. Muat naik gambar

<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>

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4. Semak imbas gambar

<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=&#39;index.php&#39;>首页</a>";
        exit();
    }else{
        ?>
        <a href="index.php">返回首页</a>    
        <a href="delimage.php?id=<?php echo $_GET[&#39;id&#39;] ?>">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>

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5. Padam gambar

<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=&#39;index.php&#39;>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=&#39;index.php&#39;>首页</a>";
        }

    }
?>
</body>
</html>

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