検索エンジンのキーワード位置チェッカースクリプト。PHP

<?php

function checkKeywordPosition($keyword, $websiteUrl) {
    $googleUrl = "http://www.google.com/search?q=" . urlencode($keyword) . "&num=100";
    $page = file_get_contents($googleUrl);
    
    // Check if the page was fetched successfully
    if ($page === FALSE) {
        return "Error: Unable to fetch Google search results.";
    }

    // Find the position of the website in search results
    $position = strpos($page, $websiteUrl);
    
    // If the website is found, return its position
    if ($position !== FALSE) {
        // Google starts indexing from 1 instead of 0
        return "The website is found at position " . ($position + 1);
    } else {
        return "The website is not found in the top 100 results.";
    }
}

// Example usage
$keyword = "your keyword here";
$websiteUrl = "your website URL here";

$result = checkKeywordPosition($keyword, $websiteUrl);
echo $result;

?>