Markup not displaying from PHP script

[black-ops]

Ok so I have a table generating input fields with dynamic names based upon the previous selection made on another page. It displays the relational children from the previous parent categories, however I have now bumped into a new problem. It seems that the markup although working is not appearing in the page source. Could anyone lend a suggestion as to why this could be the case:

The PHP is as follows:
Bear in mind that the <form> tags are outside of this script they display.

$c = 0;
       foreach($_POST as $k => $v){
           if($v == 'present'){
               $pre = 'percentage_';
               $post = $pre.$k;
               $val[$k] = $_POST[$post]; // store all present percentage elements in an array.
               $posts[$c] = $k; // Make an array of posts.
               $percent[$k] = $_POST[$post]; // Get the percentage of the selected values.
               $c++;
           }
       }

       /*
        * Count the total number of references within the array so that, which is relational to the total number
        * of elements selected on the previous page.
        */

       $max = count($posts);
       for($i=0;$i<$max;$i++){
           $sql = mysql_query("SELECT * FROM default_analysis_list_sub WHERE element = '".$posts[$i]."' ");

           $m = mysql_num_rows($sql); // Count the number of rows for the current itteration element.
           for($j = 0; $j<$m; $j++){
                $child = mysql_result($sql, $j, 'sub_element');
                $parent = mysql_result($sql, $j, 'element');
                if($j == 0){
                    echo "</fieldset><fieldset><legend><b>".$parent.": ".$percent[$parent]."%</b></legend>";
                    echo $child."<input type=\"radio\" name=\"".$child."\" value=\"present\"> Yes <input type=\"radio\" name=\"".$child."\" value=\"absent\" checked> No <input type=\"text\" name=\"percentage_".$child."\" />% of EQF<br />";
                }
                if($j > 0){
                    echo $child."<input type=\"radio\" name=\"".$child."\" value=\"present\"> Yes <input type=\"radio\" name=\"".$child."\" value=\"absent\" checked> No <input type=\"text\" name=\"percentage_".$child."\" />% of EQF<br />";
                }
           }

       }

The output is fine the form is display it's content, but within the markup all you can see is this:

<form action="default_analysis_c.php?building_name=mike_building&project_name=mike_project&survey_name=Default&quality=3" method="post"> 
<br /> 
<b>Notice</b>:  Unde in <b>/Applications/MAMP/htdocs/combicycle/default_analysis_b.php</b> on line <b>32</b><br /> 
</fieldset><br /><input type="submit" /> 
</form>

Well line the "undefined" on line 32 happens to be a variable I have defined called:

$max = count($posts);

any ideas?

 

[black-ops]

Also added did a bit more tweaking the error is definitely to do with the loops as i've tried running it like so:

       $i = 0;
       do{
           echo "<input type='text' name='".$i."' />";
           $i++;
       }while($i < $max);

Yet it still doesn't seem to appear in the mark up.

 

[inph]

What's the value of $max?

$posts[$c] = $k; // Make an array of posts. 
...
$max = count($posts);

 

[black-ops]

What's the value of $max?

$posts[$c] = $k; // Make an array of posts. 
...
$max = count($posts);

it's the number of arrays that have been populated as a result of any $_POST that contained "present".

For example,

The visitor clicks the Y radio button instead of N. As they submit all yes' have a value of "present". The script then cycles through each post (foreach) and assigns them to the $posts array for each one that is "present".

$max then stores the number of values in the array. Ie if there were 3 Y's then there will be 3 references within the $posts array. Thus $max will be 3 as a result of counting the array.

 

[Muel]

I often use this: http://www.hcibook.com/meandeviation/php-syntax-check/v5-2/syntax-check.php

Tis a very useful tool! Checks for syntax errors in your script, and then when you have found any syntax errors the script will run, and you can turn error reporting on so that you can test the script thoroughly.

One thing I've noticed from the script you posted, you're using my_sql functions but I can't see a connection to the database? Without it you can't use them.

 

[Dj_Jestar]

It means $posts is never set, i.e. it's only set if $_POST contains a value of "present".

If the value "present" is not set in any post var, then $posts will remain undefined.

 

[black-ops]

Hrm I over looked just escaping a default for the $post value then, I will do that, fingers crossed it's glitching out on that.
+ Thanks Muel for the website, bookmarked!