In the context of PHP socket operations, how can different return codes like 87 and 88 impact the functionality of the code and what steps can be taken to address them?

Return codes like 87 and 88 in PHP socket operations typically indicate errors related to connection failures or timeouts. To address these issues, you can implement error handling mechanisms to properly handle these return codes and provide appropriate feedback to the user. 

// Create a socket connection
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if ($socket === false) {
    // Handle error when socket creation fails
    $error_code = socket_last_error();
    $error_msg = socket_strerror($error_code);
    echo "Socket creation failed: [$error_code] $error_msg";
}

// Connect to a remote server
$result = socket_connect($socket, '127.0.0.1', 80);
if ($result === false) {
    // Handle error when connection fails
    $error_code = socket_last_error();
    $error_msg = socket_strerror($error_code);
    echo "Socket connection failed: [$error_code] $error_msg";
}

// Close the socket connection
socket_close($socket);

Keywords

PHP socket operations return codes error handling functionality

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