php-linux-gpio/README.md

Linux Userspace GPIO Library

• Export and Unexport GPIO pins
• Interrupt support (*)
• Rewrite of NoccyLabs RaspIO

Interrupts

For interrupts to work, you need to first bind the interrupt handler, and then make sure to call on Gpio#refresh() every cycle to poll the interrupt flag on the selected pins.

$gpio = new Gpio();

$gpio->onInterrupt(Gpio::get(0), "rising", function($e) { ... });

while (..) {
    ..
    $gpio->refresh();
}