3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo base_convert( '02ffffffffffffff', 16, 10 );
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.6
216172782113783807
preferences:
128.62 ms | 402 KiB | 119 Q