Replace all occurences of char inside quotes on PHP

Question

How could I convert something like this:

\"hi (text here) and (other text)\" come (again)

To this:

\"hi \\(text here\\) and \\(         


        

Answer 1

Here's how you can do it with the preg_replace_callback() function.

$str = '"hi (text here) and (other text)" come (again)';
$escaped = preg_replace_callback('~(["\']).*?\1~','normalizeParens',$str);
// my original suggestion was '~(?<=").*?(?=")~' and I had to change it
// due to your 2nd edit in your question. But there's still a chance that
// both single and double quotes might exist in your string.

function normalizeParens($m) {
    return preg_replace('~(?