3v4l.org

run code in 300+ PHP versions simultaneously
<?php function count_number($n) { // first strip any formatting; $n = (0+str_replace(",","",$n)); // is this a number? if(!is_numeric($n)) return false; // now filter it; if($n>1000000000000) return round(($n/1000000000000),1).'T'; else if($n>1000000000) return round(($n/1000000000),1).'G'; else if($n>1000000) return round(($n/1000000),1).'M'; else if($n>1000) return round(($n/1000),1).'K'; return number_format($n); } echo count_number("2,454");
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
2.5K

preferences:
233.05 ms | 406 KiB | 355 Q