PHP：在字符串中用空格分隔字母数字字

Question

How can separate alphanumeric value with space in one statement

Example :

$arr="new stackoverflow 244code 7490script design"; 

So how can possible to separate alpha and number with space like :

$arr="new stackoverflow 244 code 7490 script design";

Answer 1

You may use preg_replace (Example):

$arr = "new stackoverflow 244code 7490script design"; 
$newstr = preg_replace('#(?<=\d)(?=[a-z])#i', ' ', $arr);
echo $newstr; // new stackoverflow 244 code 7490 script design

The regex pattern used from user1153551's answer.