i'm trying to do the following hope there's a reg_ex expert around to shed some light. I need to replace the character [ in my code and make it a {. But there is cases where the [ needs to remain a [ and not change. So the way i figured it is i need to use the

preg_replace ("[", "{", $ string);

function with a suitable regular expression that will result the [ characters that are not preceded by the escape character to be used lets say . So how can i get to replace this "[" and not this "["?

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