Question

I have two types of input string :

1. string in a line:
   example:

   $str=Hello12345Hello12345Hello12345

2.string with new line ("\n\r")
example:

$str = '
    Hello
    12345
    Hello
    12345
    Hello
    12345'

The ways that I use now is:

Option1:

if $str one line:
         join("\n\r",str_split($str,5))
   else:
        explode("\n\r",$str)

And Try

Option2:

preg_match_all('/[^\r\n]{0,5}([\r\n]*)/',$str , $matches);

$arr = $matches[0];

Which one should I use?

Answer 1

Something like this?

$str = 'Hello12345Hello12345Hello12345';
$arr = str_split($string, 5);
$str = PHP_EOL . implode(PHP_EOL, $arr);