URL & Email Check

[URL]

URL
a bug: it's better to do a short modif in this function.
for example if you type the following URLs:
1) mydomain.com/~mypage    (to see a user's homepage in a unix server)
2) mydomain.com/mypage.shtml
it will give you an "Invalid Url" message! but both of them are correct and ordinary!!!

Email
i have seen a sample script in your website to check if an email address exist,
but this script is not included in the Email Check function of validation field class.

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hello,

Thank you for pointing me on this regex errors/  problems:

1) mydomain.com/~mypage    (to see a user's homepage in a unix server)

is this public type url? it looks more like a url for a homepage provided for free by your ISP, right?

2) mydomain.com/mypage.shtml

this was easy:

Code:

$url_pattern .= "((\/[\w\-\.]+\.[[:alnum:]]{2,5})?"; // filename like index.(s)html

i have seen a sample script in your website to check if an email address exist,
but this script is not included in the Email Check function of validation field class.

thats right the email address check is different.

the regex from the class is more advanced and the snippet is using checkdns (which is not working on windows)
maybe I will combine them later...

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Olaf I checked your snippet (about the email), and I think that the MX lookup is not recommended, as the mail server can reject your request in many cases (eg. the ip you are connecting has no reverse DNS entry)

I am not sure if this is happening often, but in case you have problems with this mail validation code you can use this email validation function .

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Olaf I checked your snippet (about the email), and I think that the MX lookup is not recommended, as the mail server can reject your request in many cases (eg. the ip you are connecting has no reverse DNS entry)

I am not sure if this is happening often, but in case you have problems with this mail validation code you can use this email validation function .

that's why I used a regex only function in the validation class with this pattern:

Code:

<?php
if (preg_match("/^[0-9a-z]+(([\.\-_])[0-9a-z]+)*@[0-9a-z]+(([\.\-])[0-9a-z-]+)*\.[a-z]{2,4}$/i", $mail_address)) {
return true;
} else {
$this->messages[] = $this->error_text(11, $field);
return false;

thanks for your care 
about: mydomain.com/~mypage:
yes! in most of universities, you can see the home page of students in this format. so your system should save this format of user's home page in the database.

i think you have make a good class, but it is better to do more work on the URL check. also using the pages whit script (like: /mypage.html?user="myname"..)

about check4htmltags option, it let the user to have such tages in the textbox: <b> my text </b>. is it true?

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check below:

about: mydomain.com/~mypage:
yes! in most of universities, you can see the home page of students in this format. so your system should save this format of user's home page in the database.

I know, I got this question before from some guy using the free webspace provided by a ISP, will add this later...(maybe )

i think you have make a good class, but it is better to do more work on the URL check. also using the pages whit script (like: /mypage.html?user="myname"..)

querystrings are fine but you example is not valid, remove the quotes...

about check4htmltags option, it let the user to have such tages in the textbox: <b> my text </b>. is it true?

no all html is invalid, use ubb tags...

[Please check]

when i install validate_fields_1-35 on my local windows server with Apache:
Open the Original validation_demo.php
(while $example->check_4html = true;)

Please Put the following text in "Simple_text":
this is a <b> text </b> for check the Html tages!

then submit the form.
you will see the from accept it! without returning any error!
i checked with "<h1> some text </h1>" too, but i had no error!
but there are HTML tages in the text fields!

but when i check http://www.finalwebsites.com/demos/form_field_validation.php
for above item, it works! and returns the error message
but for the following text:
"hi  a test <h1> hi </h1>"

again it says All form fields are valid! and doesn't return any error message! as you see there are HTML tages in the statment, isn't it?

Please check
1) this is a <b> text </b> for check the Html tages!
2) hi  a test <h1> hi </h1>

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... you're right I forgot the number for the header tags.

I wrote the html check to prevent links etc. never thought about to test for a header...

use this function until the next update:

Code:

<?php
function check_html_tags($value, $field) {
if (preg_match("/<[a-z1-6]+((\s[a-z]{2,}=['\"]?(.*)['\"]?)+(\s?\/)?)*>(<\/[a-z1-6]>)?/i", $value)) {
$this->messages[] = $this->error_text(15, $field);
return false;
} else {
return true;
}
}

[hi <b> olaf! </b>]

i checked the new code and get the following results:

1) when you type: hi <b> olaf! </b> it works.
2) when you type: hi <b > olaf! </b > it Doesn't work!
3) when you type: hi <h1 > olaf! again it Doesn't work!

[hi <b> olaf! </b>]

i checked the new code and get the following results:

1) when you type: hi <b> olaf! </b> it works.
2) when you type: hi <b > olaf! </b > it Doesn't work!
3) when you type: hi <h1 > olaf! again it Doesn't work!

is this about unvalid html code? use strip_tags() instead

when we put <b   > a text </b   >
it's not invalid HTML tag, since that tag works in a webpage.
so what's your opinion to prevent user to type any "<" or ">" characters or using like htmlspecialchar() or htmlentities() or like you told, strip_tages()?
in your opinion, what way is better?

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when we put <b   > a text </b   >
it's not invalid HTML tag, since that tag works in a webpage.
so what's your opinion to prevent user to type any "<" or ">" characters or using like htmlspecialchar() or htmlentities() or like you told, strip_tages()?
in your opinion, what way is better?

You know how more code is valid after the regex check how more problems you can except. I think that I would use strip_tags in addition, but that depends on the application (moderated form post or not)

oh yes. i think you have made a good code at all.
and we are just trying to make it better and more perfetc.

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