How can PHP handle stdin processing for event-based programs?

When developing event-based programs in PHP, handling stdin processing can be achieved by using the `stream_select` function to monitor the standard input stream for any incoming data. This function allows the program to wait for input from stdin without blocking the execution of other tasks. By using `stream_select`, the program can efficiently handle input from stdin while continuing to process other events. 

$stdin = fopen('php://stdin', 'r');

while (true) {
    $read = [$stdin];
    $write = null;
    $except = null;

    if (stream_select($read, $write, $except, null) > 0) {
        $input = fgets($stdin);
        // Process the input from stdin here
        echo "Received input: " . $input;
    }

    // Continue processing other events
}

Keywords

PHP stdin processing event-based programs stream functions event-driven programming

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