What are the potential pitfalls or limitations of using PHP to create a tool for checking website links for activity?

One potential limitation of using PHP to create a tool for checking website links for activity is the performance impact it may have when checking a large number of links. To address this issue, you can implement asynchronous requests using PHP's cURL library to make the link checking process more efficient. 

<?php

$urls = ['https://www.example.com', 'https://www.google.com', 'https://www.github.com'];

$mh = curl_multi_init();
$curl_handles = [];

foreach ($urls as $url) {
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_multi_add_handle($mh, $ch);
    $curl_handles[] = $ch;
}

do {
    curl_multi_exec($mh, $running);
    curl_multi_select($mh);
} while ($running > 0);

foreach ($curl_handles as $ch) {
    $url = curl_getinfo($ch, CURLINFO_EFFECTIVE_URL);
    $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    
    echo "URL: $url - HTTP Code: $http_code\n";
    
    curl_multi_remove_handle($mh, $ch);
    curl_close($ch);
}

curl_multi_close($mh);

?>

Keywords

cURL memory consumption timeout redirection error handling

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