Fastest way to find string into a file PHP with ~ 5000 lines -

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i know fastest way find string in file using php. have been told quickest way read file using file() function, find string in whole file have foreach. whereas if use file_get_contents or something, have strpos() on file.

the point not know if strpos() faster (i think is). know if, better content of file , strpos() once, or file line line , strpos() foreach line until find value (or until end if value not found).

using strpos file_get_contents like

if( strpos(file_get_contents("filename.txt"), $string) !== false) {         // stuff   }

would fastest way


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