Question

let’s say I have a string called str, I dont know how long is that.
characters in the string are separated by ‘-‘ after each 16th character.
Now i called function like $ex = explode('-', $str);.
Now it is in array. I have changed some chracters in array. for example $ex[0][0] = 'a';
Now I want to connect that changed arrays back to variable $str2.
Something like $str2 = $ex[0].ex[1] but I don’t know how long is that array.
Do you know how?

IF you didnt understand my explaination, tell me.

Thank you really much.

Answer 1

I think you want implode:

http://php.net/manual/en/function.implode.php

Example:

$str2 = implode('', $ex);