Michael T. Peterson wrote:

I need to find all lines that begin with the string 'WAZ' after reading from
a url (http://www.atmos.washington.edu/data/zone_report.KSEW.html). While
I've tried every combination of expressions under the sun (using the
functions preg_match(), ereg()), I can not figure out a correct regexp for
this task.

This works. Read the entire file into a string (file_get_contents() works great here) and pass to this regex. $matches[0] will have your lines that start with WAZ. Example:


<?php

$file = "asdf asdf asdf
WAZ this is line 1
asdf asdf asdf asdf
WAZ this is another line that should be matches
fWAZ this is a line that shouldn't be matches
WAZ one more for good measure
and a bad one WAZ (whoa, who put that there!)
asdf
 asdf asd fas df asdf";

preg_match_all('/^WAZ.*/m',$file,$matches);

print_r($matches[0]);

?>


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