Question

sorry but i cant solve my problem, you know , Im a noob.
I need to find something in string with preg_match.. then replace it with new word using preg_replace, that’s ok, but I don’t understand how to put replaced word back to that string.
This is what I got

$text ='zda i "zda"';
preg_match('/"(\w*)"/', $text);
$najit = '/zda/';
$nahradit = 'zda';
$o = '/zda/';
$a = 'if';
$ahoj = preg_replace($najit, $nahradit, $match[1]);

Please, can you help me once again?

Answer 1

You can use e.g. the following code utilizing negative lookarounds to accomplish what you want:

$newtext = preg_replace('/(?<!")zda|zda(?!")/', 'if', $text)

It will replace any occurence of zda which is not enclosed in quotes on both sides (i.e. in U"Vzda"W the zda will be replaced because it is not enclosed directly into quotes).