PHP：将逗号分隔的特殊符号字符串拆分为数组

I already seen how to split a comma delimited string into an array in PHP using

$myArray = explode(',', $myString);

but how to perform the same operation when there is an special symbol after some comma separated values, when finding the special symbol(@), then start a new inner array.

i have a string like this

Treatment1,2,500,0%,1000,note1, @ Treatment2,1,2000,250 INR,1750,note2,

then i need an array like this

Array
(

        [0] => Array
            (
                [treatment] => Treatment1
                [quantity] => 2
                [cost] => 500
                [discount] => 0%
                [discount_type] => INR
                [total] => 1000
                [note] => note1 
            )

        [1] => Array
            (
                [treatment] => Treatment2
                [quantity] => 1
                [cost] => 2000
                [discount] => 250
                [discount_type] => INR
                [total] => 1750
                [note] => note2 
            )
)

any help would be greatly appreciated

Try this -

str = "your string";
$arr = explode('@', $str);
$newArray = array();
foreach ($arr as $val) {
   $temp = explode(',', $val);
   $newTemp['treatment'] = $temp[0];
   $newTemp['quantity'] = $temp[1];
   $newTemp['cost'] = $temp[2];
   $newTemp['discount'] = $temp[3];
   $newTemp['discount_type'] = "INR";
   $newTemp['total'] = $temp[4];
   $newTemp['note'] = $temp[5];
   $newArray[] = $newTemp;
   $temp = array();
}
var_dump($newArray);

Use this code

$str = "Treatment1,2,500,0%,1000,note1, @ Treatment2,1,2000,250 INR,1750,note2,";

$arr1 = explode("@",$str);

//print_r($arr1);

$finalArr = array();

foreach($arr1 as $val)
{
    $finalArr[] = explode(",",$val);
}

print_r($finalArr);