[TYPO3-dev] How do I compare multiple files using diff?

[Christopher]

"Martin Kutschker" <martin.kutschker-no at spam-blackbox.net> schrieb im 
Newsbeitrag 
news:mailman.1.1212411125.11305.typo3-dev at lists.netfielders.de...
> Christopher schrieb:
>> Hi guys,
>>
>> at the moment I am using the following line to compare differences 
>> between 2 files:
>>
>> <?php
>> exec("diff -u $oldFile_1 $newFile_1 > $output_1");
>> ?>
>> (I don't have shell-access available.)
>>
>> Now I want to compare twice two files or three times two files (not whole 
>> folders!) AND want the result in just ONE otput file.
>> How do I achieve this?
>
> You could do something like this exec("diff -u $oldFile_1 $newFile_1 > 
> $output; diff -u $oldFile_2 $newFile_2 >> $output");

Hey, thanks for the hint.
How about a for-each-loop?
-- 
Christopher