PHP - Moved: Preg_match || General Problem With Regex

This topic has been moved to PHP Regex.

http://www.phpfreaks.com/forums/index.php?topic=329322.0

This topic has been moved to PHP Regex.

http://www.phpfreaks.com/forums/index.php?topic=315198.0

I've been cracking at this for the part of 2 days now, and I cannot get my regex to work properly in my script.

/^[A-Za-z][\w\-',.]*(?<![^A-Za-z][\w\-\'\,\.])$/i

The above is for a last name field, and it needs to be able to accept: Roberts, Jr. (as an example)...

As you can see in my regex, I am allowing all of these characters.. And it's still not validating it.

You can test to see what I mean he

<?php 

$last_name = "Roberts, Jr.";

 if (!preg_match("/^[A-Za-z][\w\-',.]*(?<![^A-Za-z][\w\-\'\,\.])$/i", $last_name )) {
          echo "Sorry no dice!";
      }

?>

Hi.  I need some help getting my preg_match regex working with a variable input.  I'm trying to limit visits to once per day, after you come the first time, you are added to data.txt and will be denied if you come again.  The code works, but I need to limit the searches using ^ and $ and I'm having some difficulty.

$number will be a number input from an html form ranging from 1-1000+ and I want to make sure that 1,10,100 etc., aren't treated as the same.

here is my preg_match, how do I use regular expressions with $number?
Code: [Select]
preg_match("/$number/", $file, $match)

from what I have read, it should be like this, but it doesn't work
Code: [Select]
preg_match('/^+$' , "/$number/", $file, $match)

heres the full code
Code: [Select]
$filename = "data.txt";     
$handle = fopen($filename, "r"); 
$file = fread($handle,filesize($filename)); 
if (preg_match("/$number/", $file, $match)) {     
   
echo " Sorry, Already visited today";
 
exit;
} 
else {
fclose($file);
  $file=fopen(data.txt,"a") or exit("Unable to open file!");
  fwrite($file, "$number");
  fwrite($file, "\n");
  fclose($file);
  echo " Accepted!";

exit;
} 



Thanks

This topic has been moved to PHP Regex.

http://www.phpfreaks.com/forums/index.php?topic=350701.0