I am trying to do a string replace for entire file in PHP. My file is over 100MB so I have to go line by line and can not use
file_get_contents(). Is there a good solution to this?
If you aren't required to use PHP, I would highly recommend performing stuff like this from the command line. It's byfar the best tool for the job, and much easier to use.
In any case, the
sed command is what you are looking for:
sed s/search/replace oldfilename > newfilename
If you need case-insensitivity:
sed -i s/search/replace oldfilename > newfilename
If you need this to perform dynamically within PHP, you can use
$output = passthru("sed s/$search/$replace $oldfilename > $newfilename");
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