如何在特定文本拆分后获得未分割文本结果

Question

I have this code below

$txt = "12345678910";

$start = preg_split("/5/", $txt); 

$split = str_split($start[1], 2);

echo implode(',', $split);

echo $start[0];

Which start text split from 5 example 67, 89, 10 in my achievement, I want to be able get the let unsplit text and the split text also example my result show look like: 67, 89, 10 and 12345 thanks for understanding and impact in my soluction.

Answer 1

Try like this, It'll work as per your requirement. :) I just used explode() instead of first preg_split()

$num = 5;
$txt = "12345678910";
$length = strlen($txt);
$initial = substr($txt, 0, $num);
$explode = explode($num, $txt); 
$result = str_split($explode[1], 2);
array_push($result,$initial);
echo implode(',', $result);

Edit: As per comment

$num = 5;
$array_var = [];
$txt = "12345678910";
$length = strlen($txt);
$initial = substr($txt, 0, $num);
$explode = explode($num, $txt); 
$result = str_split($explode[1], 2);
$array_var[] = implode(',',$result);
$array_var[] = $initial;
list($firstvar, $secondvar) = $array_var;
echo "First variable = $firstvar and Second variable $secondvar";