PHP Four - Working with HTML Forms - PHP and HTML Checkboxes

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H.Malatji

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 02, 2012 11:47PM

Registered: 12 years ago
Posts: 31
Rating: 0

quit tricky chapter for me i keep forgetting <BR>

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franky71713913

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 03, 2012 12:00AM

Registered: 12 years ago
Posts: 36
Rating: 0

the radio buttons that i have done while i couldn't figure out the coding for the exercises i found easier than i expected, i have practiced it,
and I find it very interesting, as the javascript coding looks so much more complicated than what the php version of coding appears, i suppose for javascript to be used, it takes quite a few more characters than the amount php uses.

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77509757aaa

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 03, 2012 10:30PM

Registered: 12 years ago
Posts: 11
Rating: 0

I completed the section.

All I wondered about was for what reason in HTML someone would use the GET method rather than POST method.

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77553055

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 04, 2012 02:32AM

Registered: 12 years ago
Posts: 116
Rating: 0

I believe the POST is better than the GET because it tends to secure your form from exposing information on the URL thereby encrypting data during operations. Check out this link http://www.cs.tut.fi/~jkorpela/forms/methods.html and gain more knowledge about it.

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nicholas-77504828

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 04, 2012 11:01AM

Registered: 12 years ago
Posts: 7
Rating: 0

Good website for progamming Q&A, if you haven't ever used it - http://stackoverflow.com/

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EggVillan

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 04, 2012 07:58PM

Registered: 12 years ago
Posts: 12
Rating: 0

Finished,

This section was great, as a front end developer I never really understood how a form worked or what you could do with the data that the user inputted.

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Steve 77593448

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 05, 2012 11:42AM

Registered: 12 years ago
Posts: 17
Rating: 0

Done with this section
And all the lazy kidz like me who dont wanna read juss watch the tutorials with me at php academy

or here

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77586492

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 07, 2012 12:04PM

Registered: 12 years ago
Posts: 31
Rating: 0

Just in case others have not noticed and are getting strange results... the tutorial (section 7 of PHP4) has an error - the line:

Language: PHP
if (isset($_POST[';Submit';])) {

should be:

Language: PHP
if (isset($_POST[';Submit1';])) {

i.e. should check the NAME attribute (Submit1) of the submit button, not the TYPE attribute.

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77586492

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 07, 2012 01:03PM

Registered: 12 years ago
Posts: 31
Rating: 0

In the radio buttons section - perhaps a good idea to check if a radio button has been selected when submit is pressed (else you get annoying "Undefined index: gender" message) i.e. check first if 'gender' has been set:

Language: PHP
  <?PHP
    $male_status = ';unchecked';;
    $female_status = ';unchecked';;
    if (isset($_POST[';Submit1';])) {
    	if (isset($_POST[';gender';])) {
          $selected_radio = $_POST[';gender';];
          print $selected_radio;
	  if ($selected_radio == ';male';) {
            $male_status = ';checked';;
          }
    	  else if ($selected_radio == ';female';) {
            $female_status = ';checked';;
    	  }
        }else {print("Please select an item!");};
    }
 
  ?>

Then at least you can give your user a meaningful message i.e "Please select an item!"

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77586492

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 07, 2012 01:35PM

Registered: 12 years ago
Posts: 31
Rating: 0

Section completed.

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Steve 77593448

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 07, 2012 02:08PM

Registered: 12 years ago
Posts: 17
Rating: 0

Completed the session and here is a link to a tutorial that will show you hw to submit the data into a data base and query the validity of the username from a database click me!!

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77592972_innocent

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 08, 2012 02:57PM

Registered: 12 years ago
Posts: 77
Rating: 0

Another useful if else statements...

Language: PHP
<?PHP
    $male_status = ';innocent';;
    if (!empty($male_status)) :
       echo ';Available';;
    else :
       echo ';Not Available';;
    endif;
  ?>

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L Dhladhla

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 08, 2012 09:52PM

Registered: 12 years ago
Posts: 15
Rating: 0

Hi 77570952

Your code helped me with something I was struggling with,good one.
Thanx smile

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77593170shelley

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 10, 2012 11:27AM

Registered: 12 years ago
Posts: 3
Rating: 0

This is what I have done over the weekend.

Language: PHP
<HTML>
<HEAD>
<TITLE>Apache testing</TITLE>
</HEAD>
<BODY>
<form action = "page.php" method="post">
username <input type = "text" name="username" /><br />
password <input type = "password" name="pass"  /><br />
<input type="submit" value="log in" />
</form>
</BODY>
</HTML>

Language: PHP
<?php
$username = $_POST[';username';];
$password = $_POST[';pass';];
 
$user = ';shelley';;
$pass = 1234;
if (($username == $user) && ($password == $pass))
	echo ';Successfull';;
else
	echo ';Try again';;
?>

Creating a login form with the database.

Language: PHP
<HTML>
<HEAD>
<TITLE>Apache testing</TITLE>
</HEAD>
<BODY>
Login
<form action = "page.php" method="post">
username <input type = "text" name="username" /><br />
password <input type = "password" name="pass"  /><br />
<input type="submit" value="log in" />
</form>
<a href="register.php">Register</a>
</BODY>
</HTML>

Connecting information to the database.

Language: PHP
<?php
$username = $_POST[';username';];
$password = $_POST[';pass';];
 
$con = mysql_connect(';localhost';, ';root';, ';';);
mysql_select_db(';shelley';, $con);
mysql_query("INSERT INTO users (username, password) 
VALUES (';$username';, $password)");
?>

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77593170shelley

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 10, 2012 12:51PM

Registered: 12 years ago
Posts: 3
Rating: 0

I have retrieved data from the database and compared it to the information provided by the form.

Language: PHP
<?php
$username = $_POST[';username';];
$password = $_POST[';pass';];
 
$con = mysql_connect(';localhost';, ';root';, ';';);
mysql_select_db(';shelley';, $con);
$RESULT = mysql_query("SELECT * FROM users WHERE username = ';$username'; AND password = $password");
$count = mysql_num_rows($RESULT);
if ($count > 1) 
echo ';Welcome';;
else
echo ';Loser';;
?>

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77528204

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 10, 2012 03:26PM

Registered: 12 years ago
Posts: 45
Rating: 0

Ok, you've already hooked up the form with a database - I have to catch up, btw completed section 4, albeit slow and steady.

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Steve 77593448

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 11, 2012 11:08AM

Registered: 12 years ago
Posts: 17
Rating: 0

Completed this section.....and l am busy trying to figure out how to upload images using php ie profile pictures....
any help will be greatly appreciated

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77582950

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 11, 2012 03:47PM

Registered: 12 years ago
Posts: 29
Rating: 0

Guyz there is a site that will surely help you because it works for me.
The site is www.w3schools.com

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norval72966475

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 12, 2012 09:38PM

Registered: 12 years ago
Posts: 15
Rating: 0

mm. forms seem to make sense but boggles the mind ! Hope I can keep it all together

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norval72966475

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
March 12, 2012 10:05PM

Registered: 12 years ago
Posts: 15
Rating: 0

mind boggling ! Done

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77582950

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
April 15, 2012 09:15PM

Registered: 12 years ago
Posts: 29
Rating: 0

Done.

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77592972_innocent

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
April 17, 2012 09:16AM

Registered: 12 years ago
Posts: 77
Rating: 0

Hi

For me to allow for registration of multiply courses i have a multiply select html element to allow for that.
To insert into a database, i have glued all the courses with |.
For example,

Language: PHP
$courses = array(';PHP';, ';HTML';, ';DATABASES';, ';AJAX';, ';JQUERY';);
$courses = implode(';|';, $courses);

And i insert the courses variable into courses table.

Any quicker way i can do this?

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Mac

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
April 17, 2012 09:57AM

Admin
Registered: 18 years ago
Posts: 10,001
Rating: 353

I want some discussion on this by other students.

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77471466_Alwyn

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
April 17, 2012 11:22AM

Registered: 12 years ago
Posts: 96
Rating: 0

77592972_innocent Wrote:
-------------------------------------------------------
> Hi
>
> For me to allow for registration of multiply
> courses i have a multiply select html element to
> allow for that.
> To insert into a database, i have glued all the
> courses with |.
> For example,
>

Language: PHP
> $courses = array(';PHP';, ';HTML';, ';DATABASES';,
> ';AJAX';, ';JQUERY';);
> $courses = implode(';|';, $courses);
>

> And i insert the courses variable into courses
> table.
>
> Any quicker way i can do this?

I've gone the exact same route except I used tickboxes and not a multiple select.

I read all the ticked boxes into an array, and then implode it into a string.
Then feed my array containing my student, along with the courses string, into my function, exploding it, and adding the data to the course_student table.

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77592972_innocent

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
April 18, 2012 01:18PM

Registered: 12 years ago
Posts: 77
Rating: 0

Hi guys

I have created a nice way of recording how long a script tabke to execute.
From the start page i have this code,

Language: PHP
define(';PAGE_PARSE_START_TIME';, microtime());

At the end of every page i have the following,

Language: PHP
  if (STORE_PAGE_PARSE_TIME == ';true';) {
    $time_start = explode('; ';, PAGE_PARSE_START_TIME);
    $time_end = explode('; ';, microtime());
    $parse_time = number_format(($time_end[1] + $time_end[0] - ($time_start[1] + $time_start[0])), 3);
    error_log(strftime(STORE_PARSE_DATE_TIME_FORMAT) . '; - '; . getenv(';REQUEST_URI';) . '; ('; . $parse_time . ';s)'; . "\n", 3, STORE_PAGE_PARSE_TIME_LOG);
 
    if (DISPLAY_PAGE_PARSE_TIME == ';true';) {
      echo ';<span class="smallText">Parse Time: '; . $parse_time . ';s</span>';;
    }
  }

In this way, in every page it shows how long does a script take to execute.
I use the error_log set to 3 and it will append the file

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Lili72792078

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
April 18, 2012 01:21PM

Registered: 12 years ago
Posts: 11
Rating: 0

I too have completed this section. thumbs up

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77570952-Sian

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
April 22, 2012 07:52PM

Registered: 12 years ago
Posts: 31
Rating: 0

Thanks Innocent and Alwyn,

I was just about to write a post about this but was looking first to see if anyone had a similar problem. I also wanted to use checkboxes to select multiple courses but was trying to figure out how to put all the selected values into the database, so I will try your method by feeding the selected courses into an array and see if that works for me ^_^ Thanks for posting that here, it helped!

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77471466_Alwyn

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
April 23, 2012 07:57AM

Registered: 12 years ago
Posts: 96
Rating: 0

77570952-Sian Wrote:
-------------------------------------------------------
> Thanks Innocent and Alwyn,
>
> I was just about to write a post about this but
> was looking first to see if anyone had a similar
> problem. I also wanted to use checkboxes to select
> multiple courses but was trying to figure out how
> to put all the selected values into the database,
> so I will try your method by feeding the selected
> courses into an array and see if that works for me
> ^_^ Thanks for posting that here, it helped!

Glad we could help man

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77570952-Sian

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
April 25, 2012 12:08AM

Registered: 12 years ago
Posts: 31
Rating: 0

So feeding the checked courses into an array and posting to the database worked really well for me for adding a new student. The problem I am having now is when you update a student's details. Because the form to edit the student's details must already be populated with the student's existing details when being edited, I have gotten stuck on how to make sure that the checkboxes for the courses the student has registered for are checked when editing.

I am using this code to build the checkboxes:

Language: PHP
<?php
$coursesql = "SELECT * FROM course";
 
 
$courseresult = mysql_query($coursesql)
	or die ("Invalid query: " . mysql_error());
 
 
while ($row = mysql_fetch_array($courseresult)) { 
 
 
$cid = $row[';cid';];
$cname = $row[';cname';];
 
?>
 
 
<input type = ';checkbox'; name =';courseselect[]'; value ="<?php echo $cid; ?>" onclick="setItems(this)" /> <?php echo $cname; ?> <br/>
 
 
<?php } ?>

So I know I need to query the course_student table to get all the courses that are related to the student being edited, but what would be a good way to then get the registered courses to be checked?

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Mac

Re: PHP Four - Working with HTML Forms - PHP and HTML Checkboxes
April 25, 2012 06:52AM

Admin
Registered: 18 years ago
Posts: 10,001
Rating: 353

You can use and if statement

Language: PHP
if($value_in_db > 0) { //assuming you used 0 and 1 to indicate it is checked 
$checked=';checked';;
}
echo "<input type....... $checked>; //

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