How to Bulk Check WordPress Websites with PHP

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Have you ever needed to quickly verify whether multiple websites are powered by WordPress? This blog post will walk you through a PHP script that lets you upload a CSV file containing website URLs and checks if each site uses WordPress. After processing, the script generates a downloadable CSV file with the results.

Features of the Script

  1. Identify WordPress Websites: Checks for WordPress-specific indicators like HTTP headers, meta tags, and common paths.
  2. CSV File Upload: Accepts a CSV file with website URLs to process in bulk.
  3. Downloadable Results: Generates and prompts for a CSV download with the findings.

The Full PHP Script

Below is the complete code, ready to use:


<?php

// Function to check if a website is WordPress
function isWordPress($url) {
if (!preg_match(“/^http(s)?:\/\//”, $url)) {
$url = “http://” . $url;
}

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

if ($httpCode !== 200 || !$response) {
return false;
}

list($headers, $body) = explode(“\r\n\r\n”, $response, 2);

if (stripos($headers, “x-powered-by: WordPress”) !== false) {
return true;
}

if (preg_match(‘/<meta name=”generator” content=”WordPress/i’, $body)) {
return true;
}

$commonPaths = [“/wp-content/”, “/wp-includes/”, “/wp-admin/”];
foreach ($commonPaths as $path) {
$pathUrl = rtrim($url, “/”) . $path;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $pathUrl);
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 5);
curl_exec($ch);
$pathHttpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

if ($pathHttpCode === 200) {
return true;
}
}

return false;
}

// Handle file upload and processing
if ($_SERVER[“REQUEST_METHOD”] === “POST” && isset($_FILES[“csv_file”])) {
$uploadedFile = $_FILES[“csv_file”][“tmp_name”];
if (($handle = fopen($uploadedFile, “r”)) !== false) {
$results = [[“site”, “is_wordpress”]]; // CSV header
while (($data = fgetcsv($handle, 1000, “,”)) !== false) {
$site = $data[0]; // Assuming the website URL is in the first column
$isWordPress = isWordPress($site) ? “Yes” : “No”;
$results[] = [$site, $isWordPress];
}
fclose($handle);

// Generate output CSV
$outputFile = “results.csv”;
$outputHandle = fopen($outputFile, “w”);
foreach ($results as $row) {
fputcsv($outputHandle, $row);
}
fclose($outputHandle);

// Offer the file for download
header(“Content-Type: text/csv”);
header(“Content-Disposition: attachment; filename={$outputFile}”);
readfile($outputFile);
unlink($outputFile); // Delete the temporary file
exit;
} else {
echo “Failed to process the uploaded file.”;
}
}
?>

<!DOCTYPE html>
<html lang=”en”>
<head>
<meta charset=”UTF-8″>
<meta name=”viewport” content=”width=device-width, initial-scale=1.0″>
<title>WordPress Site Checker</title>
</head>
<body>
<h1>Check if Websites are WordPress</h1>
<form action=”” method=”post” enctype=”multipart/form-data”>
<label for=”csv_file”>Upload a CSV file:</label>
<input type=”file” name=”csv_file” id=”csv_file” accept=”.csv” required>
<button type=”submit”>Check Websites</button>
</form>
</body>
</html>

How to Use This Script

  1. Set Up Your Environment:
    • Ensure PHP is installed on your server.
    • Save the script in a .php file (e.g., index.php).
  2. Upload the Script:
    • Place the file in your web server directory.
  3. Prepare Your CSV File:
    • Create a CSV file with one column listing the website URLs.
    • Example: website.com example.org blogsite.net
  4. Access the Script:
    • Open the script in your browser.
    • Upload the prepared CSV file.
  5. Download the Results:
    • After processing, the script generates a CSV file showing whether each site uses WordPress.

Example Output

If you upload a CSV containing:

example.com
wordpresssite.org
staticwebsite.net

The output CSV might look like this:

site,is_wordpress
example.com,No
wordpresssite.org,Yes
staticwebsite.net,No

Why Use This Script?

  • Batch Processing: Analyze multiple sites in a single upload.
  • Simplicity: Minimal setup required.
  • Automation: Saves time by automating the WordPress detection process.

Try this script today to streamline your WordPress detection workflow! Whether you’re a developer, marketer, or website manager, it’s a handy tool to have in your arsenal.