how can I use \n ? \r ? \t? \? \$ ? \" ? [0-7]{1,3}? \x[0-9A-Fa-f]{1,2} ? Hard q ? yah ? but I am realy do not Undrstand how can I make It useful 🙁🙁 !! Please can any body Help Me To underStand It !! very Thanx
Dont' really understand the question. What do you mean by "use"?
You want to have a back-slash and an n together displayed? "\n" instead of a new line"
Try this:
echo '\n';
instead of
echo "\n";
Also, take a look at http://www.php.net/manual/it/html/pcre.pattern.syntax.html
and http://www.php.net/manual/en/language.expressions.php
Oh, and don't forget http://www.php.net/manual/en/language.types.string.php
Hopefully, if you read this, play with php, and give it some time, all will make sense.
