[PHP] What is wrong with this preg_match?
I have the following:
if (isset($argc)) {
if ($argc == 1 || $argc 2 || !preg_match((\d{4}-\d{2}-\d{2}),
$argv[1])) {
echo \nUsage: $argv[0] -mm-dd\n\n;
exit;
} else {
$base_date = $argv[1];
}
} else {
$base_date = date('Y-m-d');
}
When I run it:
$ ./process_patches.php 201-01-01
Usage: ./process_patches.php -mm-dd
patches@innm2 ~/Code/Oculi $ ./process_patches.php 2011-011-01
Usage: ./process_patches.php -mm-dd
patches@innm2 ~/Code/Oculi $ ./process_patches.php 2011-01-011
Works..
What am I doing wrong?
Thanks!
--
Paul Halliday
http://www.squertproject.org/
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RE: [PHP] What is wrong with this preg_match?
-Original Message-
From: Paul Halliday [mailto:paul.halli...@gmail.com]
Sent: Thursday, October 27, 2011 2:43 PM
To: PHP-General
Subject: [PHP] What is wrong with this preg_match?
I have the following:
if (isset($argc)) {
if ($argc == 1 || $argc 2 || !preg_match((\d{4}-\d{2}-\d{2}),
$argv[1])) {
echo \nUsage: $argv[0] -mm-dd\n\n;
exit;
} else {
$base_date = $argv[1];
}
} else {
$base_date = date('Y-m-d');
}
When I run it:
$ ./process_patches.php 201-01-01
Usage: ./process_patches.php -mm-dd
patches@innm2 ~/Code/Oculi $ ./process_patches.php 2011-011-01
Usage: ./process_patches.php -mm-dd
patches@innm2 ~/Code/Oculi $ ./process_patches.php 2011-01-011
Works..
What am I doing wrong?
Thanks!
--
Paul Halliday
http://www.squertproject.org/
Paul,
To me, it looks like you're just getting the next 2 digits, so 2011-01-011 is
getting 2011-01-01 and truncating the last 1.
If you had used (I think) ^(\d{4}-\d{2}-\d{2})$ I think that would give you
what you want... (but my reg-ex is horrible)
Steve
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Re: [PHP] What is wrong with this preg_match?
On 10/27/11 11:43, Paul Halliday paul.halli...@gmail.com wrote:
if ($argc == 1 || $argc 2 || !preg_match((\d{4}-\d{2}-\d{2}),
Usage: ./process_patches.php -mm-dd
patches@innm2 ~/Code/Oculi $ ./process_patches.php 2011-01-011
The problem is that your expression basically defines a 'contains'-type
search, so it's matching the first 10 characters as required but then
simply ignoring that last, 11th character because there's no requirement
regarding it in the expression.
Try this instead:
^(\d{4}-\d{2}-\d{2})$
The ^ anchors the matching string to the beginning of the string, while
the $ anchors it to the end, which effectively forces the expression to
match the entire string, disallowing extra characters before or after it.
Regards,
Bob
--
Robert E. Williams, Jr.
Associate Vice President of Software Development
Newtek Businesss Services, Inc. -- The Small Business Authority
https://www.newtekreferrals.com/rewjr
http://www.thesba.com/
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