Re: Remove blank lines from a file

At 1:02 PM -0400 5/22/10, Robert Cummings wrote:

tedd wrote:

If that is all (i.e., removing double linefeeds), then this will do it: $text_array = array(); $text_array = explode("\n\n", $input_text); $output_text = implode("\n",$text_array);

Sorry tedd, this is broken. It doesn't solve problems with runs of greater than 2 newlines which is even in the example :) I would use the following instead which is also line break agnostic with final output in the style for your system: <?php $data = preg_replace( "#[\r\n]+#", PHP_EOL, $input ); ?> Cheers, Rob.

Rob: It's not broken according to my "given", which was "If that is all (i.e., removing double linefeeds), then this will do it:" My code does exactly what was stated. I did not catch there were more than two linefeeds in the OP's problem. Doing more was something I did not address. Also, the solution you provided works better this way: :-) $input = preg_replace( "#[\r\n]+[[:space:]]+[\r\n]+#", "\n", $input ); $input = preg_replace( "#[\r\n]+#", PHP_EOL, $input ); $input = trim( $input ); Cheers, tedd -- ------- http://sperling.com http://ancientstones.com http://earthstones.com