我试图规范化一串以逗号分隔的数字和一个范围。为了证明:
数组:
$array = ["1","2","5-10","15-20"];
应该成为:
$array = [1,2,5,6,7,8,9,10,15,16,17,18,19,20];
我正在研究的算法是:
//get the array values with a range in it :
$rangeArray = preg_grep('[-]',$array);
这将包含["5-10", "16-20"];
然后:
foreach($rangeArray as $index=>$value){
$rangeVal = explode('-',$value);
$convertedArray = range($rangeVal[0],$rangeVal[1]);
}
转换后的数组现在将包含 [" 5"," 6"," 7"," 8",& #34; 9"" 10"]
我现在面临的问题是,如何弹出价值" 5-10"在原始数组中,并在 $ convertedArray 中插入值,以便我将获得值:
$ array = [" 1"," 2"," 5"," 6"," 7"" 8"" 9"" 10" 下," 16-20"];
那么,如何将数组插入数组?或者有更清洁的方法来解决这类问题吗?将数字和范围值的数组转换为正确排序的数字数组?
答案 0 :(得分:5)
你走了。 我尽可能地尽量减少代码。
考虑下面的初始数组,
$array
如果您要创建一个新数组而不是$array
,请将$array = call_user_func_array('array_merge', array_map(function($value) {
if(1 == count($explode = explode('-', $value, 2))) {
return [(int)$value];
}
return range((int)$explode[0], (int)$explode[1]);
}, $array));
的第一次出现更改为您想要的任何名称,
$array
现在,$array = [1,2,5,6,7,8,9,10,15,16,17,18,19,20];
变为,
15-20-25
注意:
15-20
,请考虑15a-20b
并忽略其余15-20
,将其视为-
,则这是使用15a
展开后套管为整数的结果,15
变为0
<?php
$array = ["1","2","5-10","15-20"];
$newdata = array();
foreach($array as $data){
if(strpos($data,'-')){
$range = explode('-', $data);
for($i=$range[0];$i<=$range[1];$i++){
array_push($newdata, $i);
}
}
else{
array_push($newdata, (int)$data);
}
}
echo "<pre>";
print_r($array);
echo "</pre>";
echo "<pre>";
print_r($newdata);
echo "</pre>";
答案 1 :(得分:5)
试试这个:
Array
(
[0] => 1
[1] => 2
[2] => 5-10
[3] => 15-20
)
Array
(
[0] => 1
[1] => 2
[2] => 5
[3] => 6
[4] => 7
[5] => 8
[6] => 9
[7] => 10
[8] => 15
[9] => 16
[10] => 17
[11] => 18
[12] => 19
[13] => 20
)
<强>结果:强>
var responsePromise = $http.get("./php/getdata.php");
responsePromise.success(function(data, status, headers, config) {
//Assign resultJSON to desired variable
});
问题解决了!
答案 2 :(得分:3)
更简单,更简短的答案。
<强> See in Ideone 强>
$new_array = array();
foreach($array as $number){
if(strpos($number,'-')){
$range = explode('-', $number);
$new_array = array_merge($new_array, range($range[0],$range[1]));
}
else{
$new_array[] = (int) $number;
}
}
var_dump($new_array);
答案 3 :(得分:3)
使用range和array_merge处理非数字值:
$array = ["1","2","5-10","15-20"];
$newArray = [];
array_walk(
$array,
function($value) use (&$newArray) {
if (is_numeric($value)) {
$newArray[] = intval($value);
} else {
$newArray = array_merge(
$newArray,
call_user_func_array('range', explode('-', $value))
);
}
}
);
var_dump($newArray);
答案 4 :(得分:3)
更容易找出最小值和最大值并使用它们创建数组。这是一个例子:
$in = ["1","2","5-10","15-20"];
$out = normalizeArray($in);
var_dump($out);
function normalizeArray($in)
{
if(is_array($in) && sizeof($in) != 0)
{
$min = null;
$max = null;
foreach($in as $k => $elem)
{
$vals = explode('-', $elem);
foreach($vals as $i => $val)
{
$val = intval($val);
if($min == null || $val < $min)
{
$min = $val;
}
if($max == null || $val > $max)
{
$max = $val;
}
}
}
$out = array();
for($i = $min; $i <= $max; $i++)
{
$out[] = $i;
}
return $out;
}
else
{
return array();
}
}
答案 5 :(得分:3)
在这里你去交配。
<?php
$array = ["1","2","5-10","15-20"];
$newArr = array();
foreach($array as $item){
if(strpos($item, "-")){
$temp = explode("-", $item);
$first = (int) $temp[0];
$last = (int) $temp[1];
for($i = $first; $i<=$last; $i++){
array_push($newArr, $i);
}
}
else
array_push($newArr, $item);
}
print_r($newArr);
?>
答案 6 :(得分:2)
试试这个:
$array = ["1","2","5-10","15-20"];
$result = [];
foreach ($array as $a) {
if (strpos($a,"-")!== false){
$tmp = explode("-",$a);
for ($i = $tmp[0]; $i<= $tmp[1]; $i++) $result[] = $i;
} else {
$result[] = $a;
}
}
var_dump($result);
答案 7 :(得分:1)
你没有完成一点
127.0.0.1