php - 从逗号分隔的值范围中获取最小值和最大值

Question

I have simple values ranges as

0-50000,100000-250000,250000-500000,1000000,

This may be only 0-50000 or 0-50000,100000-250000, or 0-50000,250000-500000, or 1000000, if 1000000, get max value infinite

In any one of the above mentioned cases selected, i want to get minimum and maximum values.

How to do this?

Answer 1

This one simple solution using Explode()

$val = '0-50000,100000-250000,250000-500000,1000000';
$min = '';
$max = '';

$valExlode=explode(",",$val);

foreach ( $valExlode as $singleVal ) {
   $singleValExplode = explode ("-",$singleVal);
   foreach ( $singleValExplode as $singleUnit ) {
      if ( $min == '' ) {
        $min = (int)$singleUnit;
      }
      if ( $max == '' ) {
        $max = (int)$singleUnit;
      }
      if ( $singleUnit <= $min ) {
        $min = (int)$singleUnit;
      }
      if ( $singleUnit >= $max ) {
        $max = (int)$singleUnit;
      }
  }
}
echo "Minimum: ".$min;
echo "Maximum: ".$max;

as #Barmar suggested