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🗣 Wd提问: price comparison php

🤖 Ai回答:
Here's a simple PHP script to perform a price comparison between two or more products、This example compares prices from different sources (e.g., two websites) and displays the best deal.

✅ Example: Compare Prices from Two Websites

php
<?php
// Sample product data with prices from different sources
$products = [
[
'name' = 'Laptop',
'price' = 999.99,
'source' = 'Amazon'
],
[
'name' = 'Laptop',
'price' = 949.50,
'source' = 'Best Buy'
],
[
'name' = 'Laptop',
'price' = 975.00,
'source' = 'Newegg'
]
];

// Function to find the lowest price
function findLowestPrice($products) {
$lowest = $products[0];
foreach ($products as $product) {
if ($product['price'] < $lowest['price']) {
$lowest = $product;
}
}
return $lowest;
}

// Find the best deal
$bestDeal = findLowestPrice($products);

// Display results
echo <h2Price Comparison</h2;
echo <pProduct: {$bestDeal['name']}</p;
echo <pLowest Price: \${$bestDeal['price']} at {$bestDeal['source']}</p;

// Optional: Show all prices
echo <h3All Prices:</h3;
foreach ($products as $product) {
echo <p{$product['name']} \${$product['price']} at {$product['source']}</p;
}
?

🔍 Output Example:

Price Comparison
Product: Laptop
Lowest Price: $949.50 at Best Buy

All Prices:
Laptop $999.99 at Amazon
Laptop $949.50 at Best Buy
Laptop $975.00 at Newegg

🛠️ How to Use:
1、Save this as `price_compare.php`.
2、Run it on a local server (e.g., XAMPP, WAMP, or PHP built-in server).
3、You can extend it to fetch real-time prices from APIs or scrape websites.

💡 Advanced Ideas:
Scrape websites using `curl` or `Guzzle`.
Compare prices from multiple APIs (e.g., Amazon, eBay, Google Shopping).
Store data in a database (MySQL) for historical price tracking.
Add filters (e.g., brand, category, rating).

Would you like a version that scrapes real websites or compares prices from APIs?

Ai作答

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