I have a Simple CMS i made but i cant anderstand how to connect the content to the category
i need another mysql table for cat?
how can i add this in to the form?
which functions will show the cat in the Add content page?

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Show your exisitng code, your description is unclear.

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Ok, I think I know what you want. I'd do this...

1) Create a new categories table in MySQL: cat_id [PK, int], category [varchar]
2) Run a SELECT query on a category table and extract both fields. In the while loop, you can build the select dropdown:

$select = ''; …
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means you didn't run a query before the mysql_fetch_assoc

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Line 7 $select = 'mysqli_query("SELECT * FROM categories")'; Why do you have the mysqli_query function itself in quotes?

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Show your exisitng code, your description is unclear.

for example -
the form

 <form action="add.php" method="post">
 title: <input type="text" name="title">
 discription: <input type="text" name="discription">
 content: <input type="content" name="content">
 <input type="submit">
 </form>

i want to add to the form a global categories

the add.php

<?php
require 'config.php';

// Get values from form 
 $title=$_POST['title'];
 $description=$_POST['description'];
 $content=$_POST['content'];

 // Insert data into mysql 
 $sql="INSERT INTO $content (titel, discription, content )VALUES('$title', '$discription', '$content')";
 $result=mysql_query($sql);

// if successfully insert data into database, displays message "Successful". 
 if($result){
 echo "Successful";
 echo "<BR>";
 echo "<a href='addp.php'>Back to main page</a>";
 }

 else {
 echo "ERROR";
 }
mysql_close($con);
 ?> 
Member Avatar

Ok, I think I know what you want. I'd do this...

1) Create a new categories table in MySQL: cat_id [PK, int], category [varchar]
2) Run a SELECT query on a category table and extract both fields. In the while loop, you can build the select dropdown:

$select = '';
while($d = mysql_fetch_assoc($result)){
   $select .= "<option value='{$d['cat_id']}'>{$d['category']}</option>";
}

3) Insert the variable in the required place, e.g.

<select name="cat">
<?php echo $select;?>
</select>

4) You pick up the category id:

$cat_id=$_POST['cat'];

5) By now you should have realised that you need a cat_id field in your content table.

6) INSERT SQL after you clean all the post variables with mysql_real_escape_string()

INSERT INTO content (title, description, cat_id )VALUES('$title', '$description', $cat_id)

** You've spelled some fields incorrectly

OK, that's my 2p. Note that you just have the ONE content table, with each record linked (related) to a category

there is an error

Warning: mysql_fetch_assoc() expects parameter 1 to be resource, null given in /home/content/60/10533160/html/cms/in.php on line 3
Member Avatar

means you didn't run a query before the mysql_fetch_assoc

still not working

<?php

require 'config.php';



$select = 'mysqli_query("SELECT * FROM categories")';
while($d = mysql_fetch_assoc($result)){
   $select .= "<option value='{$d['cat_id']}'>{$d['category']}</option>";
}
?>
<html>
 <body>

 <form action="main.php" method="post">
 Firstname: <input type="text" name="title">
 Lastname: <input type="text" name="discription">
 Age: <input type="content" name="content">
<select name="cat_id">
<?php echo $select;?>
</select>


 <input type="submit">
 </form>

 </body>
 </html> 

Line 7 $select = 'mysqli_query("SELECT * FROM categories")'; Why do you have the mysqli_query function itself in quotes?

So what is the correct way to write the query

You have quotes surrounding the entire function, so it's a string, simply remove the quotes so it reads: $select = mysqli_query("SELECT * FROM categories");
That should fix your problem.

not working

<?php





require 'config.php';



 $select = mysqli_query("SELECT * FROM categories");
while($d = mysql_fetch_assoc($result)){
   $select .= "<option value='{$d['cat_id']}'>{$d['category']}</option>";
}
?>

ERROR

Warning: mysqli_query() expects at least 2 parameters, 1 given in /home/content/60/10533160/html/cms/in.php on line 7

Warning: mysql_fetch_assoc() expects parameter 1 to be resource, null given in /home/content/60/10533160/html/cms/in.php on line 8

<?php

$query = "SELECT * FROM categories";
$result = mysqli_query($query, $dbc);
while ($row = mysqli_fetch_assoc($result)) {
    // Do stuff
}

?>
Member Avatar

As tintin shows, you need to include the connection ($dbc). I'm assuming this is set in your config.php file. Of course it may be called something other than $dbc. Just change the name of the variable in that case.

still give the same error
Warning: mysqli_query() expects parameter 1 to be mysqli, string given in /home/content/60/10533160/html/cms/in.php on line 6

Warning: mysqli_fetch_assoc() expects parameter 1 to be mysqli_result, null given in /home/content/60/10533160/html/cms/in.php on line 7

line 6

$result = mysqli_query($query, $con);

line 7

while ($row = mysqli_fetch_assoc($result)) {
Member Avatar

I'm really sorry mat - my mistake, the parameter order in Tinnin's post is wrong - yours should be:

$result = mysqli_query($con, $query);

Anyway, you can check this out yourself at http://php.net/manual/en/mysqli.query.php and look at the 'Procedural Style' not the 'OOP Style'. However, I would suggest maybe moving towards OOP if your site needs it.

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