PHP求改代码

ly445414237 · 发表于 2025-9-3 12:31:49

<?php
$filename= 'text.txt';
if (file_exists($filename)&&filesize($filename)>0) {
$str= file_get_contents($filename);
$userinfo= unserialize($str);
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gbk" />
<title>查看页面</title>
</head>
<body>
<h3 style="text-align: center;">列表页面-<a href="index.php">添加页面</a></h3>
<table style="margin: 0 auto;" border="1" width="60%"aligh="center" cellpadding="5" cellsacing="0" bgcolor="" >
<tr style="text-align: center;" bgcolor="E1E1E1">
<td>序列</td>
<td>姓名</td>
<td>标题</td>
<td>内容</td>
<td>TIME</td>
<td>类型</td>
<td>操作</td>
</tr>
<?php foreach ($userinfo as $key =>$val){
      ?>
<tr style="text-align: center;">
<td><?php echo $key;?></td>
<td><?php echo $val['username']?></td>
<td><?php echo $val['title']?></td>
<td><?php echo $val['content']?></td>
<td><?php echo $val['time']?></td>
<td><img width="30" height="20" src="img/<?php echo $val['dengj'];?>" alt=""/></td>
      <form action="del.php"method="get">
      <input type="hidden" name="Linenumber" value= <?php echo $key;?> />
               <td colspan="1"><input type="submit" value="删除" /></td>
         </tr>
</form>

</tr>
      <?php
}?>
</table>
</body>
</html>

求把代码改写成可以cha询指定内容的形式显示
不是全部显示出来有这一条内容才显示
就是一个搜索功能

熬夜 · 发表于 2025-9-3 12:31:50

[PHP] 纯文本查看 复制代码

<?php
$filename = 'text.txt';
$searchKeyword = isset($_GET['search']) ? trim($_GET['search']) : '';

if (file_exists($filename) && filesize($filename) > 0) {
    $str = file_get_contents($filename);
    $userinfo = unserialize($str);

    // 根据搜索关键词过滤数据
    if (!empty($searchKeyword)) {
        $filteredUserinfo = [];
        foreach ($userinfo as $key => $val) {
            // 检查用户姓名、标题、内容是否包含关键词，只要有一项包含就保留
            if (stripos($val['username'], $searchKeyword) !== false || stripos($val['title'], $searchKeyword) !== false || stripos($val['content'], $searchKeyword) !== false) {
                $filteredUserinfo[$key] = $val;
            }
        }
        $userinfo = $filteredUserinfo;
    }
} else {
    $userinfo = [];
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gbk" />
<title>查看页面</title>
</head>
<body>
    <h3 style="text-align: center;">列表页面-<a href="index.php">添加页面</a></h3>
    
    <!-- 搜索框 -->
    <form action="" method="get" style="text-align: center; margin: 20px 0;">
        <input type="text" name="search" placeholder="输入关键词搜索" value="<?php echo htmlspecialchars($searchKeyword); ?>" />
        <input type="submit" value="搜索" />
    </form>

    <table style="margin: 0 auto;" border="1" width="60%" align="center" cellpadding="5" cellspacing="0" bgcolor="">
    <tr style="text-align: center;" bgcolor="E1E1E1">
        <td>序列</td>
        <td>姓名</td>
        <td>标题</td>
        <td>内容</td>
        <td>TIME</td>
        <td>类型</td>
        <td>操作</td>
    </tr>
    <?php foreach ($userinfo as $key => $val) { ?>
    <tr style="text-align: center;">
        <td><?php echo $key; ?></td>
        <td><?php echo htmlspecialchars($val['username']); ?></td>
        <td><?php echo htmlspecialchars($val['title']); ?></td>
        <td><?php echo htmlspecialchars($val['content']); ?></td>
        <td><?php echo $val['time']; ?></td>
        <td><img width="30" height="20" src="img/<?php echo $val['dengj']; ?>" alt=""/></td>
        <form action="del.php" method="get">
            <input type="hidden" name="Linenumber" value="<?php echo $key; ?>" />
            <td colspan="1"><input type="submit" value="删除" /></td>
        </form>
    </tr>
    <?php } ?>
    </table>
</body>
</html>

JueWar · 发表于 2025-9-3 12:51:34

<?php
$filename= 'text.txt';
if (file_exists($filename)&&filesize($filename)>0) {
$str= file_get_contents($filename);
$userinfo= unserialize($str);
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gbk" />
<title>查看页面</title>
<style>
      .search-box {
         text-align: center;
         margin: 20px 0;
      }
      .search-box input {
         padding: 8px;
         font-size: 14px;
         width: 300px;
         border: 1px solid #ccc;
         border-radius: 4px;
      }
      .search-box select {
         padding: 8px;
         font-size: 14px;
         border: 1px solid #ccc;
         border-radius: 4px;
         margin-left: 10px;
      }
      .no-results {
         text-align: center;
         padding: 20px;
         color: #666;
         display: none;
      }
</style>
</head>
<body>
<h3 style="text-align: center;">列表页面-<a href="index.php">添加页面</a></h3>


<div class="search-box">
      <input type="text" id="searchInput" placeholder="输入关键字搜索姓名、标题或内容..." />
      <select id="searchType">
         <option value="all">全部字段</option>
         <option value="username">姓名</option>
         <option value="title">标题</option>
         <option value="content">内容</option>
      </select>
      <button type="button" onclick="clearSearch()">清空</button>
</div>

<table style="margin: 0 auto;" border="1" width="60%" align="center" cellpadding="5" cellspacing="0" bgcolor="" id="dataTable">
      <thead>
         <tr style="text-align: center;" bgcolor="E1E1E1">
            <td>序列</td>
            <td>姓名</td>
            <td>标题</td>
            <td>内容</td>
            <td>TIME</td>
            <td>类型</td>
            <td>操作</td>
         </tr>
      </thead>
      <tbody>
         <?php foreach ($userinfo as $key => $val){ ?>
         <tr style="text-align: center;" class="data-row">
            <td><?php echo $key;?></td>
            <td class="username"><?php echo $val['username']?></td>
            <td class="title"><?php echo $val['title']?></td>
            <td class="content"><?php echo $val['content']?></td>
            <td><?php echo $val['time']?></td>
            <td><img width="30" height="20" src="img/<?php echo $val['dengj'];?>" alt=""/></td>
            <td>
                  <form action="del.php" method="get" style="margin: 0;">
                     <input type="hidden" name="Linenumber" value="<?php echo $key;?>" />
                     <input type="submit" value="删除" />
                  </form>
            </td>
         </tr>
         <?php } ?>
      </tbody>
</table>

<div class="no-results" id="noResults">
      没有找到匹配的记录
</div>

<script>
      // 搜索功能
      function performSearch() {
         const searchInput = document.getElementById('searchInput');
         const searchType = document.getElementById('searchType');
         const searchTerm = searchInput.value.toLowerCase().trim();
         const searchField = searchType.value;
         const rows = document.querySelectorAll('.data-row');
         const noResults = document.getElementById('noResults');

         let visibleCount = 0;

         rows.forEach(function(row) {
            let shouldShow = false;

            if (searchTerm === '') {
                  shouldShow = true;
            } else {
                  if (searchField === 'all') {
                     // 搜索所有字段
                     const username = row.querySelector('.username').textContent.toLowerCase();
                     const title = row.querySelector('.title').textContent.toLowerCase();
                     const content = row.querySelector('.content').textContent.toLowerCase();

                     shouldShow = username.includes(searchTerm) ||
                                 title.includes(searchTerm) ||
                                 content.includes(searchTerm);
                  } else {
                     // 搜索指定字段
                     const fieldContent = row.querySelector('.' + searchField).textContent.toLowerCase();
                     shouldShow = fieldContent.includes(searchTerm);
                  }
            }

            if (shouldShow) {
                  row.style.display = '';
                  visibleCount++;
            } else {
                  row.style.display = 'none';
            }
         });

         // 显示/隐藏"没有结果"提示
         if (visibleCount === 0 && searchTerm !== '') {
            noResults.style.display = 'block';
         } else {
            noResults.style.display = 'none';
         }
      }

      // 清空搜索
      function clearSearch() {
         document.getElementById('searchInput').value = '';
         document.getElementById('searchType').value = 'all';
         performSearch();
      }

      // 绑定事件
      document.getElementById('searchInput').addEventListener('input', performSearch);
      document.getElementById('searchType').addEventListener('change', performSearch);

      // 支持回车键搜索
      document.getElementById('searchInput').addEventListener('keypress', function(e) {
         if (e.key === 'Enter') {
            performSearch();
         }
      });
</script>
</body>
</html>

		自动登录	找回密码
密码			注册

[已解决] PHP求改代码

最佳答案

评分