Web Development Exam > Web Development Videos > PHP for Absolute Beginners: From Novice to PHP Master > Beginner PHP Tutorial - 101 - Creating a Simple Contact Form Part 2
Beginner PHP Tutorial - 101 - Creating a Simple Contact Form Part 2 Video Lecture | PHP for Absolute Beginners: From Novice to PHP Master - Web Development
FAQs on Beginner PHP Tutorial - 101 - Creating a Simple Contact Form Part 2 Video Lecture - PHP for Absolute Beginners: From Novice to PHP Master - Web Development
| 1. How do I create a contact form using PHP? |  |
Ans. To create a contact form using PHP, you need to follow these steps:
1. Create an HTML form with input fields for name, email, subject, and message.
2. Add the action attribute to the form, pointing to the PHP file that will handle the form submission.
3. In the PHP file, retrieve the form data using the $_POST superglobal and sanitize the inputs to prevent any malicious code.
4. Validate the form inputs to ensure they meet the required criteria, such as a valid email address.
5. If the inputs are valid, process the form data and send an email to the desired recipient using the mail() function.
6. Display a success message to the user upon successful submission.
| 2. How can I prevent spam submissions on my PHP contact form? | |
Ans. To prevent spam submissions on your PHP contact form, you can implement the following measures:
1. Use CAPTCHA or reCAPTCHA to verify that the form is being submitted by a human rather than a bot.
2. Implement a honeypot field, which is an invisible field that only bots would fill out.
3. Add a time delay before displaying the success message to ensure that the form is not submitted too quickly.
4. Use form validation techniques to check for suspicious or malicious input, such as excessive characters or URLs in the message field.
5. Consider implementing an IP blacklist to block known spam IP addresses from submitting the form.
| 3. How do I handle form validation in PHP? | |
Ans. To handle form validation in PHP, you can follow these steps:
1. Retrieve the form data using the $_POST superglobal.
2. Use PHP's built-in functions or regular expressions to validate each input field individually, checking for criteria such as required fields, minimum and maximum lengths, and specific patterns.
3. If any validation errors are found, store the error messages in an array or variable and display them to the user.
4. After validating all fields, check if there are any error messages. If not, the form inputs are considered valid and can be processed further.
5. If there are errors, display the error messages to the user and allow them to correct the invalid fields.
| 4. How can I improve the security of my PHP contact form? | |
Ans. To improve the security of your PHP contact form, consider implementing the following measures:
1. Validate and sanitize all user inputs to prevent SQL injection and cross-site scripting (XSS) attacks.
2. Use prepared statements or parameterized queries when interacting with a database to prevent SQL injection.
3. Implement form validation to ensure that the user input meets the required criteria.
4. Implement CAPTCHA or reCAPTCHA to prevent automated form submissions by bots.
5. Regularly update and patch your PHP version, web server, and any libraries or frameworks used to ensure they have the latest security fixes.
| 5. How can I handle file uploads in my PHP contact form? | |
Ans. To handle file uploads in your PHP contact form, you can follow these steps:
1. Modify your HTML form to include a file input field.
2. In your PHP form handling code, access the uploaded file using the $_FILES superglobal.
3. Validate the uploaded file to ensure it meets the desired criteria, such as file type, size, and any other restrictions.
4. Move the uploaded file to a designated folder on your server using the move_uploaded_file() function.
5. Update your email sending code to include a link or attachment to the uploaded file, if required.
6. Consider implementing additional security measures, such as restricting file types or scanning uploaded files for viruses or malware.
Text Transcript from Video
okay so the last field that we need to
check for is um the content itself so
this is oh sorry this is no different so
what we just need to do is say dollar
underscore post and we need to specify
our contact underscore text and my text
editor online here seems to have got a
bit funny so I'm just going to save this
file and when they close that I'm going
to reopen it in our plain text editor so
we're going to have to deal with plain
text for now but that doesn't really
matter okay so now what we need to do is
that we've checked if we've set the
contact name we've checked if we've set
the contact email and we've checked if
we set the contact text this doesn't
mean that the value actually equals
anything so the next thing we need to do
is we need to check whether these fields
are empty considering they're all
required we need them all to equal at
least one value so we are first of all
going to set them into their own
variable so we can use them a lot easier
inside of our RAM inside of our if
statement so what we're going to I'm
going to do is create an individual
variable for each one so contact
underscore name this can obviously be
anything you like and then we say equals
dollar underscore post and then we say
contact name so what we're doing is
we're just taking this variable here and
we're putting it into a contact name now
you might be asking why aren't we doing
this outside of our if statement and the
reason we're not doing this outside of
our if statement is because this post
might not be set and we're going to get
what's called an undefined index or an
undefined variable error because we're
we're assuming this value exists before
we've checked that they're set so
remember to always declare variables
inside after you've checked for them
being set so now I'm going to say
contact email equals dollar underscore
post
contact email so we're doing exactly the
same thing for each value the waste
submitting contact underscore text
equals dollar underscore post contact
underscore text
okay so we've now got all three
variables from our form let's just go
ahead and echo these out we can put an
echo in front of here and what this is
going to do is just going to echo out
each value so if we click Save Changes
and we come into here let's go ahead and
click send you can see that the form has
been submitted but nothing's happened
with regards to PHP because we've
checked using this is set language
construct so now I'm going to do is I'm
going to type Alex my name I'm going to
type let's say my email address in here
and then I can just type a small message
in here so hi for example now let's
click send and see what happens okay so
you can see that the first variable has
been picked up here which is the net in
the name field and then here we've
picked up the email address and then
here we've picked up the message so
let's go back to our editor and let's
get rid of this echo part six we don't
actually want to echo them out to the
user now after this we can check for
their existence so we can check if they
equal nothing so let's go if not empty
contact name and so using this and
operator again not empty
contact email so empty is basically
checking with this value is equal to
null and not is saying we don't want it
to be empty so in making sure this is
equal to true by saying we don't want it
to be empty so we're saying and not
empty contact on the score text so let's
go down now and we inside here we need
to do something if these do exist or
these do equal something so for now I'm
just going to echo out okay okay so
let's go and try and submit the form
without any data okay now let's put say
a B and C in here click send and that's
okay so that's worked and what we can
actually do is specify an error message
if this if these are our if one of them
are empty well in fact no these are
going to be or because what we're doing
is we're checking if if either of them
or if if one out of the three of them is
empty so we need to use this or instead
of and so I'm going to echo here if else
I'm going to say all fields are required
okay
so let's click Save Changes and see what
happens here so let's click send all
fields are required now we can type a B
or C or an C and click ok so if we were
just just type in a and B here and we
click send all we're still getting oh no
sorry sorry my mistake completely they
should be and now the reason I got
confused there is because we what we
would do is if this if this if statement
was if empty if empty empty empty we
would say if empty contact name or empty
contact email but we're saying not empty
and we don't want any of them to be
empty so many apologies for that okay so
if they are not empty what do you want
to do well that's easy we want to send
an email to us
check for is um the content itself so
this is oh sorry this is no different so
what we just need to do is say dollar
underscore post and we need to specify
our contact underscore text and my text
editor online here seems to have got a
bit funny so I'm just going to save this
file and when they close that I'm going
to reopen it in our plain text editor so
we're going to have to deal with plain
text for now but that doesn't really
matter okay so now what we need to do is
that we've checked if we've set the
contact name we've checked if we've set
the contact email and we've checked if
we set the contact text this doesn't
mean that the value actually equals
anything so the next thing we need to do
is we need to check whether these fields
are empty considering they're all
required we need them all to equal at
least one value so we are first of all
going to set them into their own
variable so we can use them a lot easier
inside of our RAM inside of our if
statement so what we're going to I'm
going to do is create an individual
variable for each one so contact
underscore name this can obviously be
anything you like and then we say equals
dollar underscore post and then we say
contact name so what we're doing is
we're just taking this variable here and
we're putting it into a contact name now
you might be asking why aren't we doing
this outside of our if statement and the
reason we're not doing this outside of
our if statement is because this post
might not be set and we're going to get
what's called an undefined index or an
undefined variable error because we're
we're assuming this value exists before
we've checked that they're set so
remember to always declare variables
inside after you've checked for them
being set so now I'm going to say
contact email equals dollar underscore
post
contact email so we're doing exactly the
same thing for each value the waste
submitting contact underscore text
equals dollar underscore post contact
underscore text
okay so we've now got all three
variables from our form let's just go
ahead and echo these out we can put an
echo in front of here and what this is
going to do is just going to echo out
each value so if we click Save Changes
and we come into here let's go ahead and
click send you can see that the form has
been submitted but nothing's happened
with regards to PHP because we've
checked using this is set language
construct so now I'm going to do is I'm
going to type Alex my name I'm going to
type let's say my email address in here
and then I can just type a small message
in here so hi for example now let's
click send and see what happens okay so
you can see that the first variable has
been picked up here which is the net in
the name field and then here we've
picked up the email address and then
here we've picked up the message so
let's go back to our editor and let's
get rid of this echo part six we don't
actually want to echo them out to the
user now after this we can check for
their existence so we can check if they
equal nothing so let's go if not empty
contact name and so using this and
operator again not empty
contact email so empty is basically
checking with this value is equal to
null and not is saying we don't want it
to be empty so in making sure this is
equal to true by saying we don't want it
to be empty so we're saying and not
empty contact on the score text so let's
go down now and we inside here we need
to do something if these do exist or
these do equal something so for now I'm
just going to echo out okay okay so
let's go and try and submit the form
without any data okay now let's put say
a B and C in here click send and that's
okay so that's worked and what we can
actually do is specify an error message
if this if these are our if one of them
are empty well in fact no these are
going to be or because what we're doing
is we're checking if if either of them
or if if one out of the three of them is
empty so we need to use this or instead
of and so I'm going to echo here if else
I'm going to say all fields are required
okay
so let's click Save Changes and see what
happens here so let's click send all
fields are required now we can type a B
or C or an C and click ok so if we were
just just type in a and B here and we
click send all we're still getting oh no
sorry sorry my mistake completely they
should be and now the reason I got
confused there is because we what we
would do is if this if this if statement
was if empty if empty empty empty we
would say if empty contact name or empty
contact email but we're saying not empty
and we don't want any of them to be
empty so many apologies for that okay so
if they are not empty what do you want
to do well that's easy we want to send
an email to us
About this Video
Sep 27, 2025
Last updated
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