I need to create a registration form in HTML which has a password input with the following constraints:
Is a mandatory field, should be validated. Minimum of 7 characters. Should have at least one special character and one number. Do not use java script, use HTML 5 features.
I have written the following code to for the above input:
<input type="text" name="password" pattern="(?=.*\d)(?=.*[\W_]).{7,}" required>
I need to submit this code as part of an assignment and I get the error:
Correct HTML Component with the name 'password' must be used with appropriate constraints
which means I am not using the correct attributs.
What changes should I make to the pattern attribute?
This code works perfectly with validation message
<p>Password: <input type="password" name="pw" pattern="(?=.*\d)(?=.*[\W_]).{7,}" title="Minimum of 7 characters. Should have at least one special character and one number."></p>
try it here :
https://www.w3schools.com/tags/tryit.asp?filename=tryhtml5_input_pattern3
I think this will work.
Password:<input type="password" name="pw" pattern="^(?=.*?[a-z])(?=.*?[0-9])(?=.*?[#?!#$%^&*-]).{7,}$" title="Minimum of 7 characters. Should have at least one special character and one number and one UpperCase Letter.">
Pattern attribute will also use a Regular Expression to validate your form-data.So for more results you can also search for Regular Expression
Related
So I'm trying to make a form for my assignment, and I am using the pattern attribute in html so only certain characters are required to be typed on the text box. But for some reason, the form is saying using that I'm using an incorrect format even though I made my pattern attribute that way.
Here's an example of the code and a picture of the problem.
<form>
<label for="mnumber">Mobile Number:</label>
<input type="text" required id="mnumber" pattern="[0-9]"><br><br>
<input type="submit" value="submit">
</form>
You did write:
pattern="[0-9]"
You are asking for only one number. You just forget to add '+' to accept more than one number. I guess what you are searching for is this:
pattern="[0-9]+"
pattern="[0-9]"
allows for only a single number character to validate (and be submitted). If you want to allow more than one character, here's your options:
One or more numbers:
pattern="[0-9]+"
Zero or more numbers:
pattern="[0-9]*"
One to three numbers:
pattern="[0-9]{1,3}"
you just need to change type="text" to type="number"
Number pattern and max length are not working on IE.
I have tried variations of the below HTML, though IE appears to bypass that validation.
<input id="phone" maxlength="10" minlength="10" pattern="[0-9.]+" type="text">
Any suggestions on enforcing the above on IE?
The goal is to only allow 10-digits for that input field.
You can use an <input type="tel"> element, but it actually allows you to enter any characters. So, ultimately you need to specify a pattern and be very explicit as to what you are looking for and rely on HTML5 form validation. For example, if you are trying to input a phone number of the format 999.999.9999, then you want a something like the following. If you enter something that does not match the pattern and try to submit the form by hitting enter, you will get an error indication. Of course, use whatever pattern you want. If you just want digits and decimal points in any order (why?) but they must be length 10, then use pattern="[0-9.]{10}".
<form>
<input type="tel" pattern="[0-9]{3}\.[0-9]{3}\.[0-9]{4}" required>
</form>
I'm a newbie at php.
HTML form is capturing data and mailing it to user via php.
I am trying to make this field have a default value of "ALAA-" and then only permit 6 numbers after "ALAA-". I believe I need the REGex for this but I can't figure out the code. thank you!
<div class="form-group">
<label for="form_moms_alaa_registration">Doodle Mom's ALAA Number *11
digits</label>
<input id="form_moms_alaa_registration" type="text" pattern=""
default="ALAA-123456" tabindex="5" value="ALAA-"
name="inputmomsalaaregistration" class="form-control"
placeholder="ALAA-######" data-error="Doodle Moms ALAA registration
should have 6 numbers. It is a required field." required>
<div class="help-block with-errors"></div>
</div>
While sending your client-side HTML form PHP will get the values sent with the tag how the post method , but first I suggest using a JQuery script to validate the upload data see more information to get values in HTML attributes:
help about get attribute value
For the server side, PHP manipulates variables that you can treat this value using regex:
preg_match('/ALAA-[0-9]{6}/', $_POST['YOURFIELD'], $matches);
Here is the regex you need
pattern="ALAA-\d{6}"
You could also write it as:
pattern="ALAA-[0-9]{6}"
I don't think either is more correct than the other, but some people might have opinions about which is more readable.
\d means match any digit. [0-9] means match any character in the range of 0-9 so that is effectively the same thing as \d
The {6} means match exactly 6 repetitions of the preceding character
Abit annoying to work with since I cannot seem to get this right.
I need to get a pattern that accepts exactly 12 characters containing upper case letters and numbers. Nothing more nor less than 12 characters.
<input type="text" placeholder="Licence Number.." pattern="[A-Z0-9]+" maxlength="12" minlength="12" title="Enter Licence number">
I am going about this in a wrong way because everytime I am entering 12 characters it is activating the validation message.
You can remove the minlength attribute and use the pattern [A-Z0-9]{12} instead:
input:invalid {
color:red;
}
<input type="text" placeholder="Licence Number..." pattern="[A-Z0-9]{12}" maxlength="12" title="Enter Licence number">
The minlength attribute is not needed using the above pattern. The maxlength attribute isn't also needed with the above pattern but it stops the input after 12 chars.
At the moment your pattern allows all license numbers with at least one upper case letter or number.
I believe what you are missing in your regular expression is an exact count. Your regex will match if any input character matches your specification at least once. This means that no matter how long your input is, or how many "illegal" characters there are, if just one uppercase letter or digit is input, the regex will match.
The following will check for exactly 12 of any uppercase letter or digit.
[A-Z0-9]{12}
I am currently doing homework, and following the instructions the book gives me, but I can't get the required or pattern tags to work. I am creating a survey form, and trying to make an error come up when the user doesn't type in their name, receipt number, or email. Here is a portion of it.
<label for"receipt">Receipt number *</label>
<input name="receipt" id="receipt"
placeholder="re-nnnnnn"
required="required"
pattern="^re\-\d{6}$" />
A few things i see
the required attribute does not need a value, the existence of the attribute is what makes it required or not.
the - does not need to be escaped so use ^re-\d{6}$ for the pattern attribute
the issue with the notepad++ is that the language formatting/color-coding is not up-to-date with all the attributes.
<input name="receipt" id="receipt"
placeholder="re-nnnnnn"
required pattern="^re-\d{6}$" />
there is no need to write like that u can just write : required and it will work
and whats your pattern i don't catch that