Command line tricks: Scripting Languages
To search your php.ini file quickly and easily with the option to use regular expressions, I tend to drop back to the cli. The reason for this is I can easily parse the output of phpinfo() with grep, and can do various things with the output, could even pass it to a script if I really wanted to.
Here is the line I use to search phpinfo()
echo "<?php phpinfo() ?>" | php | grep -i $search_string
It passes the string through the php interpreter and then searches through it with grep....
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