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

[Martin Kutschker]

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");

Masi