What are the potential pitfalls of using cURL for asynchronous requests in PHP?

Potential pitfalls of using cURL for asynchronous requests in PHP include blocking the script execution while waiting for each request to complete, which can lead to slow performance for multiple requests. To solve this issue, you can use PHP's built-in functions like `curl_multi_init`, `curl_multi_add_handle`, and `curl_multi_exec` to send multiple requests asynchronously. 

// Initialize cURL multi handle
$mh = curl_multi_init();

// Create cURL handles for each request
$ch1 = curl_init('http://example.com/api/endpoint1');
$ch2 = curl_init('http://example.com/api/endpoint2');

// Add cURL handles to multi handle
curl_multi_add_handle($mh, $ch1);
curl_multi_add_handle($mh, $ch2);

// Execute multiple requests asynchronously
do {
    curl_multi_exec($mh, $running);
} while ($running > 0);

// Close cURL handles
curl_multi_remove_handle($mh, $ch1);
curl_multi_remove_handle($mh, $ch2);
curl_multi_close($mh);

Keywords

cURL asynchronous requests PHP pitfalls error types

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