多条件搜索 php

<?php
// 假设我们有一个商品数组
$products = [
    ['id' => 1, 'name' => 'Product A', 'price' => 100, 'category' => 'Category 1'],
    ['id' => 2, 'name' => 'Product B', 'price' => 200, 'category' => 'Category 2'],
    ['id' => 3, 'name' => 'Product C', 'price' => 150, 'category' => 'Category 1'],
];

// 获取用户输入的搜索条件
$searchName = isset($_GET['name']) ? $_GET['name'] : '';
$searchPriceMin = isset($_GET['price_min']) ? $_GET['price_min'] : '';
$searchPriceMax = isset($_GET['price_max']) ? $_GET['price_max'] : '';
$searchCategory = isset($_GET['category']) ? $_GET['category'] : '';

// 进行多条件搜索
$filteredProducts = [];
foreach ($products as $product) {
    $match = true;
    if (!empty($searchName) && strpos($product['name'], $searchName) === false) {
        $match = false;
    }
    if (!empty($searchPriceMin) && $product['price'] < $searchPriceMin) {
        $match = false;
    }
    if (!empty($searchPriceMax) && $product['price'] > $searchPriceMax) {
        $match = false;
    }
    if (!empty($searchCategory) && $product['category'] !== $searchCategory) {
        $match = false;
    }
    if ($match) {
        $filteredProducts[] = $product;
    }
}

// 输出结果
echo "<pre>";
print_r($filteredProducts);
echo "</pre>";
?>