functionNextRelatedNumber($number,$range){

$r=$number%$range;

$f=$number-$r;

$b=round($r/$range,0);

return($b==1)?$f+$range:$f;

}

//Returnsthenexthighernumber

functionNextHigherNumber($number,$range){

$r=$number%$range;

$f=$number-$r;

$b=ceil($r/$range);

return($b==1)?$f+$range:$f;

}

//Returnsthenextlowernumber

functionNextLowerNumber($number,$range){

$r=$number%$range;

$f=$number-$r;

$b=floor($r/$range);

return($b==1)?$f+$range:$f;

}

//Returnsthenextrelatednumberfromanarray

functionNextNumberArray($Number,$NumberRangeArray){

$w=0;

$c=-1;

$abstand=0;

$l=count($NumberRangeArray);

for($pos=0;$pos<$l;$pos++){

$n=$NumberRangeArray[$pos];

$abstand=($n<$Number)?$Number-$n:$n-$Number;

if($c==-1){

$c=$abstand;

continue;

}

elseif($abstand<$c){

$c=$abstand;

$w=$pos;

}

}

return$NumberRangeArray[$w];

}

//Examples

//--------

//01020304050...

print'NextRelatedNumber:';

printNextRelatedNumber(44,10)."\n";

//returns-->40

//020406080100...

print'NextHigherNumber:';

printNextHigherNumber(41,20)."\n";

//returns-->60

//05101520253035...

print'NextLowerNumber:';

printNextLowerNumber(57,5)."\n";

//returns-->55

//ExamplewithArray

print'NextNumberArray:';

printNextNumberArray(45,array(3,8,19,34,56,89))."\n";

//returns-->34

//(45isbetween34and56but34isthenext)

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