php-pcntlHow to use PCNTL alarm in PHP?

PCNTL (Process Control) is a PHP extension that allows you to execute Unix-like process control functions in PHP. The pcntl_alarm() function is used to set an alarm signal after a specified time interval.

<?php
// Set an alarm to go off in 5 seconds
pcntl_alarm(5);

// Do some processing
echo "Doing some processing...\n";
sleep(10);

echo "Done!\n";
?>

The code above sets an alarm to go off in 5 seconds and then does some processing. After the alarm is triggered, the script will terminate.

Code explanation

• pcntl_alarm(5): Sets an alarm to go off in 5 seconds.
• echo "Doing some processing...\n": Prints a message to the screen.
• sleep(10): Pauses the script for 10 seconds.
• echo "Done!\n": Prints a message to the screen.

Helpful links

• PHP PCNTL Manual
• PHP pcntl_alarm() Function

Edit this code on GitHub