php - 从逗号分隔的值范围中获取最小值和最大值
问题描述：
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?
我的简单值范围为 p>
0-50000， 100000-250000,250000-500000,1000000，
code> pre>
这可能只有0-50000或0-50000,100000-250000，或0-50000,250000- 500000，或1000000，
if 1000000，获取最大值无限 p>
在上述任何一种情况下，我想获得最小值和最大值。 p>
\ n
怎么做？ p>
div>
答
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