Tutorial laman web korporat pembangunan PHP menunjukkan maklumat tentang kami

Selepas kami mempelajari cara mengendalikan pengguna (tambah, padam, ubah suai dan semak), ia akan menjadi sangat mudah untuk membangunkan fungsi berikut Kebanyakannya adalah sama, kecuali pernyataan SQL adalah berbeza, tetapi prinsipnya pada asasnya serupa

Di bawah Mari kita lihat paparan beberapa maklumat tentang kami

<?php
    header("Content-type: text/html; charset=utf-8");//设置编码
    require_once('conn.php');
    $sql = "SELECT * FROM about order by id desc";
    $res = mysql_query($sql);

//截取中文字符
function msubstr($str,$start=0,$length,$suffix=true,$charset="utf-8"){
    if(function_exists("mb_substr")){
        if ($suffix && mb_strlen($str, $charset)>$length)
            return mb_substr($str, $start, $length, $charset)."...";
        else
            return mb_substr($str, $start, $length, $charset);
    }elseif(function_exists('iconv_substr')) {
        if ($suffix && strlen($str)>$length)
            return iconv_substr($str,$start,$length,$charset)."...";
        else
            return iconv_substr($str,$start,$length,$charset);
    }
    $re['utf-8']   = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xff][\x80-\xbf]{3}/";
    $re['gb2312'] = "/[\x01-\x7f]|[\xb0-\xf7][\xa0-\xfe]/";
    $re['gbk']    = "/[\x01-\x7f]|[\x81-\xfe][\x40-\xfe]/";
    $re['big5']   = "/[\x01-\x7f]|[\x81-\xfe]([\x40-\x7e]|\xa1-\xfe])/";
    preg_match_all($re[$charset], $str, $match);
    $slice = join("",array_slice($match[0], $start, $length));
    if($suffix) return $slice."…";
    return $slice;
}

?>
<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>展示关于我们的信息</title>
    <style type="text/css">
        .top{height:30px;line-height:30px;float:right;margin-right:15px;}
        .top a{color:red;text-decoration:none;}
        .cont{width:100%;height:300px;float:left;}
        .cont_ct{float:left;}
        table{width:100%;border:1px solid #eee;text-align:center;}
        th{background:#eee;}
        td{width:200px;height:40px;}
    </style>
</head>
<body>
    <div class="top"><a href="addab.php">添加信息</a></div>

    <div class="cont">
        <table cellspacing="0" cellpadding="0" border="1">
            <tr>
                <th>ID</th>
                <th>标题</th>
                <th>内容</th>
                <th>操作</th>
            </tr>
            <?php
                while($row = mysql_fetch_array($res)){
            ?>
            <tr>
                <td><?php echo $row['id'];?></td>
                <td><?php echo $row['title'];?></td>
                <td><!-- <textarea cols="50" rows="5" readonly> -->
                <?php echo msubstr($row['content'],0,20);?><!-- </textarea> --></td>
                <td>
                    <a href="modifya.php?id=<?php echo $row['id'];?>">修改</a>
                    <a href="delabout.php?id=<?php echo $row['id'];?>">删除</a>
                </td>
            </tr>
            <?php
                }
            ?>
        </table>
    </div>
</body>
</html>

Apabila kandungan yang dipaparkan terlalu panjang, kami perlu memintas panjang rentetan

Kami telah merangkumkan kaedah penggunaan Lihat kod untuk bahagian kandungan output di bawah Bermula dari 0, ambil 20

, padam dan ubah suainya dengan id

.
Meneruskan pembelajaran
||
<?php header("Content-type: text/html; charset=utf-8");//设置编码 require_once('conn.php'); $sql = "SELECT * FROM about order by id desc"; $res = mysql_query($sql); //截取中文字符 function msubstr($str,$start=0,$length,$suffix=true,$charset="utf-8"){ if(function_exists("mb_substr")){ if ($suffix && mb_strlen($str, $charset)>$length) return mb_substr($str, $start, $length, $charset)."..."; else return mb_substr($str, $start, $length, $charset); }elseif(function_exists('iconv_substr')) { if ($suffix && strlen($str)>$length) return iconv_substr($str,$start,$length,$charset)."..."; else return iconv_substr($str,$start,$length,$charset); } $re['utf-8'] = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xff][\x80-\xbf]{3}/"; $re['gb2312'] = "/[\x01-\x7f]|[\xb0-\xf7][\xa0-\xfe]/"; $re['gbk'] = "/[\x01-\x7f]|[\x81-\xfe][\x40-\xfe]/"; $re['big5'] = "/[\x01-\x7f]|[\x81-\xfe]([\x40-\x7e]|\xa1-\xfe])/"; preg_match_all($re[$charset], $str, $match); $slice = join("",array_slice($match[0], $start, $length)); if($suffix) return $slice."…"; return $slice; } ?> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>展示关于我们的信息</title> <style type="text/css"> .top{height:30px;line-height:30px;float:right;margin-right:15px;} .top a{color:red;text-decoration:none;} .cont{width:100%;height:300px;float:left;} .cont_ct{float:left;} table{width:100%;border:1px solid #eee;text-align:center;} th{background:#eee;} td{width:200px;height:40px;} </style> </head> <body> <div class="top"><a href="addab.php">添加信息</a></div> <div class="cont"> <table cellspacing="0" cellpadding="0" border="1"> <tr> <th>ID</th> <th>标题</th> <th>内容</th> <th>操作</th> </tr> <?php while($row = mysql_fetch_array($res)){ ?> <tr> <td><?php echo $row['id'];?></td> <td><?php echo $row['title'];?></td> <td><!-- <textarea cols="50" rows="5" readonly> --> <?php echo msubstr($row['content'],0,20);?><!-- </textarea> --></td> <td> <a href="modifya.php?id=<?php echo $row['id'];?>">修改</a> <a href="delabout.php?id=<?php echo $row['id'];?>">删除</a> </td> </tr> <?php } ?> </table> </div> </body> </html>
  • Cadangan kursus
  • Muat turun perisian kursus