如何通过PHP开发记账系统的过滤和搜索功能 - 提供过滤和搜索记账数据的实现指南

<form action="filter.php" method="GET">
    <label for="type">记账类型：</label>
    <select name="type" id="type">
        <option value="">全部</option>
        <option value="收入">收入</option>
        <option value="支出">支出</option>
    </select>
    <br>
    <label for="amount">金额范围：</label>
    <input type="number" name="min" id="min" placeholder="最小金额">
    <input type="number" name="max" id="max" placeholder="最大金额">
    <br>
    <label for="date">记账日期：</label>
    <input type="date" name="date" id="date">
    <br>
    <input type="submit" value="过滤">
</form>

<?php
    // 获取过滤条件
    $type = $_GET['type'];
    $min = $_GET['min'];
    $max = $_GET['max'];
    $date = $_GET['date'];
    
    // 构建查询语句
    $sql = "SELECT * FROM accounting WHERE 1 = 1";
    if ($type != '') {
        $sql .= " AND type = '$type'";
    }
    if ($min != '') {
        $sql .= " AND amount >= '$min'";
    }
    if ($max != '') {
        $sql .= " AND amount <= '$max'";
    }
    if ($date != '') {
        $sql .= " AND date = '$date'";
    }
    
    // 执行查询，并显示结果
    // ...
?>

<form action="search.php" method="GET">
    <label for="keyword">关键字：</label>
    <input type="text" name="keyword" id="keyword" placeholder="请输入关键字">
    <input type="submit" value="搜索">
</form>

<?php
    // 获取关键字
    $keyword = $_GET['keyword'];
    
    // 构建查询语句
    $sql = "SELECT * FROM accounting WHERE description LIKE '%$keyword%'";
    
    // 执行查询，并显示结果
    // ...
?>