Adding a character in the middle of a string

php string wordpress advanced-custom-fields

$time = "1300";    $time = substr($time,0,2).':'.substr($time,2,2);

Edit:

Here is a general solution to this problem:

function insertAtPosition($string, $insert, $position) {    return implode($insert, str_split($string, $position));}

php string wordpress advanced-custom-fields

I favor this solution as it is just one function

substr_replace('1300', ':', 2, 0);

php string wordpress advanced-custom-fields

implode(":",str_split($time,2));

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