RE: [PHP] Reg Exp Help

YES! I was working that out as well. One correction though, this line should read: $temp_int_id = trim(substr($file_array[$i], 21, 4)); I guess the lesson learned is to use substr() when the length of the $string is fixed. Since I have to use substr() and trim() twice, I wonder if this has more or less overhead than a single regular expression? Thank you. Zach -----Original Message----- From: Edward van Bilderbeek - Bean IT [mailto:edward@bean-it.nl] Sent: Friday, January 25, 2002 11:36 AM To: Zach Curtis Subject: Re: [PHP] Reg Exp Help You said: > The password and int_id begin and end in fixed positions. > > password begins in position 13 and can occupy up to 8 characters > int_id begins in position 21 and can occupy up to 4 characters > > Sometimes a password (or int_id) may occupy all of those fixed position or > only some of the fixed positions, it's variable. so that would make the code like this: > Here is part of my actual code, if that makes any difference. > > $password // this var was retrieved from db > $int_id // this var was retrieved from db > > $file_array = file("$DOCUMENT_ROOT/dir/file.dat"); > $count = count($file_array); > if ($count == 0) > echo "<p>No records found in .dat file.</p>"; > > for ($i = 0; $i < $count; $i++) > { $temp_pass = trim(substr($file_array[$i], 13, 8)); $temp_int_id = trim(substr, $file_array[$i], 21, 4)); if ($temp_pass == $password && $temp_int_id == $int_id) > { > // do stuff > } > } > > > Zach > > -----Original Message----- > From: Edward van Bilderbeek - Bean IT [mailto:edward@bean-it.nl] > Sent: Friday, January 25, 2002 10:29 AM > To: Zach Curtis > Subject: Re: [PHP] Reg Exp Help > > > but if the positions as fixed, why don't you use the substr, and then trim > th result? > > Edward > > ----- Original Message ----- > From: "Zach Curtis" <zach@populus.com> > To: "Edward van Bilderbeek - Bean IT" <edward@bean-it.nl> > Cc: <php-general@lists.php.net> > Sent: Friday, January 25, 2002 6:12 PM > Subject: RE: [PHP] Reg Exp Help > > > > The password and int_id begin and end in fixed positions. > > > > password begins in position 13 and can occupy up to 8 characters > > int_id begins in position 21 and can occupy up to 4 characters > > > > Sometimes a password (or int_id) may occupy all of those fixed position or > > only some of the fixed positions, it's variable. > > > > > > Zach > > > > -----Original Message----- > > From: Edward van Bilderbeek - Bean IT [mailto:edward@bean-it.nl] > > Sent: Friday, January 25, 2002 9:58 AM > > To: Zach Curtis > > Subject: Re: [PHP] Reg Exp Help > > > > > > how can I see that it isn't a 6 char $password with a 3 char $int_id ?? > > > > > This one has a 8 character $password, followed by zero white spaces, > > > followed by a single character $int_id > > > 7d2ad345b > > > > Edward > > > > > > ----- Original Message ----- > > From: "Zach Curtis" <zach@populus.com> > > To: <php-general@lists.php.net> > > Sent: Friday, January 25, 2002 5:51 PM > > Subject: [PHP] Reg Exp Help > > > > > > > I am trying to code a regular expression that will match at the > beginning > > of > > > the string the contents of $password, followed by 0 or more occurrences > of > > > white space, followed by the contents of $int_id. The match should be > case > > > insensitive. > > > > > > Here are some examples of the strings: > > > > > > This one has a 6 character $password, followed by two white spaces, > > followed > > > by a single character $int_id > > > 9a9b9c z > > > > > > This one has a 8 character $password, followed by zero white spaces, > > > followed by a single character $int_id > > > 7d2ad345b > > > > > > This one has a 5 character $password, followed by three white spaces, > > > followed by a four character $int_id > > > d22ad bbaw > > > > > > > > > Here is the regular expression I am trying to use that does not find the > > > match and produces "Warning: REG_BADRPT". > > > > > > (eregi("^\$password+[[:space:]]*+\$int_id", $file_array[$i])) > > > > > > Any corrections? Thanks in advance. > > > > > > > > > Zach Curtis > > > POPULUS > > > > > > > > > -- > > > PHP General Mailing List (http://www.php.net/) > > > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > > > For additional commands, e-mail: php-general-help@lists.php.net > > > To contact the list administrators, e-mail: php-list-admin@lists.php.net > > > > > > > > > > > > > -- > > PHP General Mailing List (http://www.php.net/) > > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > > For additional commands, e-mail: php-general-help@lists.php.net > > To contact the list administrators, e-mail: php-list-admin@lists.php.net > > > >