Jump to content

Regexp w/ Preg_Match


Jumpy09

Recommended Posts

EDIT!  I just figured out that RegExp has it's own Forum.  I apologize!

 

I have decided it may be quicker to seek help with this particular problem.

 

I really, really, really hate regexp with a passion.  It's one thing for JS, another for PHP, and for some reason I just can't seem to get them set up to do what I want properly.  So I'm just going to leave it up to people who probably have more experience with them or just all around smarter than I am.

 

Here is a list of RegExp that I am using and what it is "SUPPOSED" to do.

 

<?php

// Check username to make sure it only has Letters and Numbers
preg_match("/^[-a-zA-Z0-9]+$/", $uname);

// Check Password to make sure it has 2 Numbers
preg_match("/(.*[0-9].*[0-9])/", $pass);

// Check Password to make sure it has 2 Special Chars from the List
preg_match("/(.*[!,@,#,$,%,^,&,*,?,-,_,~].*[!,@,#,$,%,^,&,*,?,-,_,~])/", $pass);

// Check if Email is in Valid Format
preg_match("/^(?i)[0-9a-z]([-.\\w]*[0-9a-z])*@([0-9a-z][-\\w]*[0-9a-z]\\.)+[a-z]{2,9}\$/", $email);

//Check to make sure First Name has only letters, hyphens, or an apostrophes!
preg_match("/^(?i)[-a-z']$/", $fname);

// Check to make sure Last Name has only letters, hyphens, or apostrophes!
preg_match("/^(?i)[-a-z']$/", $lname);

?>

 

Now each and every single one of these features works properly in Javascript, unfortunately I can't quite figure out how to get them to work properly in PHP.

 

I use ( ! ) to check if there isn't a match, but the RegExp is giving me a bit of a headache.  What should be valid comes back as invalid.  I can't remember which I actually did, and which I just copied or found somewhere else.  I just want the torture to stop!  :)  Can anyone help?

Link to comment
Share on other sites

Alright the Username one works, I actually had a special character in it to test the error message.  Kind of forgot that.

 

However I think I may know why the fname and lname ones are not working correctly.  An apostrophe isn't required, as it is optional.  But I am looking for it anyway.  I'll look into that one, but the numbers and the special chars in the password should work correctly.

Link to comment
Share on other sites

I really don't understand why this isn't working correctly.

 

This is how they are in Javascript!

 

<script type="text/javascript">
      match(/(.*[0-9].*[0-9])/);
      match(/(.*[!,@,#,$,%,^,&,*,?,_,~].*[!,@,#,$,%,^,&,*,?,_,~])/);
      match(/^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/);
      /^[-A-Za-z0-9'\_]+$/i.test(required);
</script>

 

They work flawlessly, but even those identically in PHP doesn't want to do right.  Each time I load up the page and see the exact same errors, I want to literately punch my monitor.

 

If I take the ( ! ) out of the if statement, even a valid bit fails to produce the error.  So it's not matching up correctly.  Every change I make fails to produce a good result.

Link to comment
Share on other sites

/(.*[!,@,#,$,%,^,&,*,?,_,~].*[!,@,#,$,%,^,&,*,?,_,~])/

You know that all those commas are not separators between characters, right? Your expression allows for !@#$%^&*?_~ and commas, and as such you really don't need all of them.

/(.*[!@#$%^&*?_~,].*[!@#$%^&*?_~,])/

(Of course, if you don't want to allow commas then remove them.)

Link to comment
Share on other sites

This thread is more than a year old. Please don't revive it unless you have something important to add.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.