I am experiencing some odd behaviour when using findstr to search a collection of .php files.

Depending on how I specify the file list, the file is not being found, even though it contains the string in question.

These two files contain the string "personemail": Content.php and People.php

A) Works as expected (finds personemail in Content.php and People.php)

findstr /i /s /c:"personemail" *

B) Fails (finds only in Content.php) - expected to find in Content.php and People.php

findstr /i /s /c:"personemail" *.php

C) Works as expected (finds in People.php):

findstr /i /s /c:"personemail" p*.php

What is going on?