[users@httpd] Delete Blank Lines In A Text File

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To: users@xxxxxxxxxxxxxxxx
Subject: [users@httpd] Delete Blank Lines In A Text File
From: Christopher Deeley <chrisdeeleyuk@xxxxxxxxx>
Date: Tue, 27 Dec 2005 21:16:37 +0000
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Does anyone know how to use PHP to delete blank lines in a text file. I use a text file to store usernames and passwords but with adding and deleting users, blank lines appear which returns an undefined offset error when the 'verify user script' tries to read each line of the text file.

Thanks

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