PHP code example of piphp / gpio

1. Go to this page and download the library: Download piphp/gpio library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php.

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

piphp / gpio example snippets


use PiPHP\GPIO\GPIO;
use PiPHP\GPIO\Pin\PinInterface;

// Create a GPIO object
$gpio = new GPIO();

// Retrieve pin 18 and configure it as an output pin
$pin = $gpio->getOutputPin(18);

// Set the value of the pin high (turn it on)
$pin->setValue(PinInterface::VALUE_HIGH);


use PiPHP\GPIO\GPIO;
use PiPHP\GPIO\Pin\InputPinInterface;

// Create a GPIO object
$gpio = new GPIO();

// Retrieve pin 18 and configure it as an input pin
$pin = $gpio->getInputPin(18);

// Configure interrupts for both rising and falling edges
$pin->setEdge(InputPinInterface::EDGE_BOTH);

// Create an interrupt watcher
$interruptWatcher = $gpio->createWatcher();

// Register a callback to be triggered on pin interrupts
$interruptWatcher->register($pin, function (InputPinInterface $pin, $value) {
    echo 'Pin ' . $pin->getNumber() . ' changed to: ' . $value . PHP_EOL;

    // Returning false will make the watcher return false immediately
    return true;
});

// Watch for interrupts, timeout after 5000ms (5 seconds)
while ($interruptWatcher->watch(5000));