Online PHP editor | output for 0Q3q3

@ 2014-10-31T14:42:33Z

<?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($n>1000000000000) return floor(($n/1000000000000),1).'T';
    else if($n>1000000000) return floor(($n/1000000000),1).'G';
    else if($n>1000000) return floor(($n/1000000),1).'M';
    else if($n>1000) return floor(($n/1000),1).'K';

    return number_format($n);
}

echo count_number("2,454");

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Fatal error: Uncaught ArgumentCountError: floor() expects exactly 1 argument, 2 given in /in/0Q3q3:13 Stack trace: #0 /in/0Q3q3(13): floor(2.454, 1) #1 /in/0Q3q3(18): count_number(2454) #2 {main} thrown in /in/0Q3q3 on line 13
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 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: Warning: floor() expects exactly 1 parameter, 2 given in /in/0Q3q3 on line 13 K
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: Warning: Wrong parameter count for floor() in /in/0Q3q3 on line 13 K

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