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@ 2016-01-14T11:39:10Z

<?php

function bround($dVal,$iDec) {
    // banker's style rounding or round-half-even
    // (round down when even number is left of 5, otherwise round up)
    // $dVal is value to round
    // $iDec specifies number of decimal places to retain
    static $dFuzz=0.00001; // to deal with floating-point precision loss
    $iRoundup=0; // amount to round up by
    
    $iSign=($dVal!=0.0) ? intval($dVal/abs($dVal)) : 1;
    $dVal=abs($dVal);
    // get decimal digit in question and amount to right of it as a fraction
    $dWorking=$dVal*pow(10.0,$iDec+1)-floor($dVal*pow(10.0,$iDec))*10.0;
    $iEvenOddDigit=floor($dVal*pow(10.0,$iDec))-floor($dVal*pow(10.0,$iDec-1))*10.0;
    if (abs($dWorking-5.0)<$dFuzz) $iRoundup=($iEvenOddDigit & 1) ? 1 : 0;
    else $iRoundup=($dWorking>5.0) ? 1 : 0;
    return $iSign*((floor($dVal*pow(10.0,$iDec))+$iRoundup)/pow(10.0,$iDec));
}

echo bround(10.005);
?>

Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 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: Fatal error: Uncaught ArgumentCountError: Too few arguments to function bround(), 1 passed in /in/F40HV on line 21 and exactly 2 expected in /in/F40HV:3 Stack trace: #0 /in/F40HV(21): bround(10.005) #1 {main} thrown in /in/F40HV on line 3
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20: Warning: Missing argument 2 for bround(), called in /in/F40HV on line 21 and defined in /in/F40HV on line 3 Notice: Undefined variable: iDec in /in/F40HV on line 14 Notice: Undefined variable: iDec in /in/F40HV on line 14 Notice: Undefined variable: iDec in /in/F40HV on line 15 Notice: Undefined variable: iDec in /in/F40HV on line 15 Notice: Undefined variable: iDec in /in/F40HV on line 18 Notice: Undefined variable: iDec in /in/F40HV on line 18 10

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