Recursively find all php files not starting with a comment

Question

Is there any useful combination of commands (sed/grep/find etc.) I can use for detecting .php files not starting with a comment? I could write a little script of course, but I'd rather use shell commands.

Matching pattern:

<?php
/*

I'd like searching in the contents of the file, not the file names.

I have to deal with a hacked website where code-injection follows a certain pattern.

<?php $code....
/*

or

<?php
$code....
/*

Answer 1

Using gnu grep you can use this recursive search:

grep -rvlz $'^[[:space:]]*<?php\n/\*' --include='*.php'

Answer 2

This will detect all php files that start with a php tag;

find ./ -iname '*.php' | xargs head -v -n 1 | grep -B 1 '<?php'

• Find all files with php extensions.
• head the first line and include the filename.
• grep this output to find any files that start with php tag.
• -B 1: keep 1 line before the match so we get the filename.

This is quick and dirty, you can get fancy to make the output nicer or make it more robust.