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Searching all files in folder for strings

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linux-howto

http://stackoverflow.com – I am looking for the fastest approach for searching for some string into some folder structure. I know that I can get all content from the file with file_get_contents, but I am not sure if is fast. Maybe there is already some solution that works fast. I was thinking about using scandir to get all files and file_get_contents to read it's content and strpos to check if the string exist. Do you think there is some better way od doing this? Or maybe trying to use php exec with grep? Thanks in advance! (HowTos)