PHP count, add colons every 2 characters
You can do this with substr, str_split and implode
The code is done on multiple lines for clarity, but can easily be done in a chain on one line:
$str = '1010081-COP-8-27-20110616214459';//Get last 6 chars$end = substr($str, -6);//Split string into an array. Each element is 2 chars$chunks = str_split($end, 2);//Convert array to string. Each element separated by the given separator.$result = implode(':', $chunks);
echo preg_replace('/^.*(\d{2})(\d{2})(\d{2})$/', '$1:$2:$3', $string);It looks to me though like that string has a particular format which you should parse into data. Something like:
sscanf($string, '%u-%3s-%u-%u-%u', $id, $type, $num, $foo, $timestamp);$timestamp = strtotime($timestamp);echo date('Y-m-d H:i:s', $timestamp);