don't replace some occurrences using str_replace

I have a string like this "{text}...{text}...{text}...text..." I need to replace the "text" value in the string but only the ones that are not in curl开发者_StackOverflowy or square brackets

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You should then use regular expressions :

/(?<!({|\[))text(?!(}|\]]))/

You can use this with preg_replace() :

preg_replace("/(?<!({|\[))text(?!(}|\]]))/", $replace, $string);