3v4l.org

run code in 500+ PHP versions simultaneously
<?php $hex = 'ffffff'; $red = hexdec( substr( $hex, 0, 2 ) ); $green = hexdec( substr( $hex, 2, 2 ) ); $blue = hexdec( substr( $hex, 4, 2 ) ); var_dump(compact('red', 'green', 'blue'));
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
array(3) { ["red"]=> int(255) ["green"]=> int(255) ["blue"]=> int(255) }
preferences:
97.78 ms | 1267 KiB | 4 Q