How can PHP be utilized to extract and process codes sent by electronic devices through USB connections to trigger specific actions, such as opening HTML pages?

To extract and process codes sent by electronic devices through USB connections, we can utilize PHP in conjunction with libraries like libusb to communicate with the devices. By capturing the data sent by the device, we can then trigger specific actions such as opening HTML pages based on the received codes. 

<?php

// Load the libusb library
if (!extension_loaded('libusb')) {
    dl('libusb.so'); // Load the libusb library dynamically
}

// Open a USB device
$device = libusb_open_device_with_vid_pid($ctx, $vendor_id, $product_id);

// Read data from the USB device
$data = libusb_control_transfer($device, $bmRequestType, $bRequest, $wValue, $wIndex, $size, $timeout);

// Process the received data and trigger specific actions
if ($data == $expected_code) {
    // Open an HTML page
    header('Location: http://example.com/page.html');
    exit;
}

// Close the USB device
libusb_close($device);

?>

Keywords

PHP USB connection code extraction trigger actions HTML pages

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