<?php
$min = 23;
$max = 100;
$step = 10;
$arr = [];
$end = $min + ($step - ($min % $step));
$start = $min;
do{
if($end > $max){
if($start >= $end){
$arr[] = [
"begin"=>$start,
"end"=>$max,
];
}
break;
}else{
$arr[] = [
"begin"=>$start,
"end"=>$end,
];

$start = $end + 1;
$end = $start + ($step - ($start % $step));
}


}while(true);
echo "<pre>";
var_dump($arr);
echo "</pre>";
这个意思？