Why is Sublime not friendly with regex?

Question

PHP

Sublime will syntactically highlight the parenthesis as an error in this code, why and how to get rid of it?

$new_var= preg_replace(/href="\/uploads/, '123', $var);

All of the following code is highlighted in one color and is not broken into syntax.
It's impossible to work.
Same thing in java script. At least you can write in it:

var emailFilter = /^[_/a-zA-Z0-9]+([!"#$%&()*+,./:;/]) ;

Answer 1

Have you tried running this code? You have a syntax error, so the sublime swears. preg_replace takes as its first argument a string or an array of strings, and if it is a string, then it must be enclosed in single or double quotes.

$new_var= preg_replace('/href="\/uploads/', '123', $var);

Answer 2

Try escaping the double quote \"

Answer 3

Lights up correctly. preg_replace must have a string as its first argument. Therefore, the second spelling is syntactically correct. Actually, I have it (ubuntu 12.04, Sublime 2.0.2) is shown correctly.