What are the common pitfalls when using fsockopen() in PHP to send HTTP requests?

One common pitfall when using fsockopen() in PHP to send HTTP requests is not properly handling errors or timeouts, which can lead to script hanging indefinitely. To solve this issue, it is important to set a timeout for the connection and check for errors when opening the socket. Additionally, it is recommended to use stream_set_blocking() to prevent the script from waiting indefinitely for a response. 

$fp = fsockopen('example.com', 80, $errno, $errstr, 10);
if (!$fp) {
    echo "Error: $errstr ($errno)\n";
} else {
    stream_set_blocking($fp, 0); // Set non-blocking mode
    // Send HTTP request and read response
    fclose($fp);
}

Keywords

fsockopen HTTP requests PHP error handling socket connections

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