3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo setlocale(LC_ALL, 0)."\n"; echo number_format('6514616146164268464600161606510561610656161056');
Output for 5.2.1 - 7.1.7
C 6,514,616,146,164,268,241,904,873,825,790,795,200,084,312,064
Output for 4.3.4 - 5.2.0
C 6,514,616,146,164,272,000,000,000,000,000,000,000,000,000,000