PHP not display all drop down boxes - php

Question

I have four drop down boxes which display information from the database but it's only displaying two of the four.
http://www.cupboard2stomach.com/php/get.php?dropdown1=bread&dropdown3=chicken&Submit=Submit This is what it currently looks like.
Is there something wrong with my code?
Ingredient 1:<select name= "dropdown1" id = "drop1"/>
<?php
while ($line = mysql_fetch_array($result1, MYSQL_ASSOC)) {
?>
<option value="<?php echo $line['ingredientname'];?>"> <?php echo $line['ingredientname'];?> </option>
<?php
}
?>
Ingredient 2:<select name = "dropdown2" id = "drop2"/>
<?php
while ($line = mysql_fetch_array($result2, MYSQL_ASSOC)) {
?>
<option value="<?php echo $line['ingredientname'];?>"> <?php echo $line['ingredientname'];?> </option>
<?php
}
?>
Ingredient 3:<select name = "dropdown3" id = "drop3"/>
<?php
while ($line = mysql_fetch_array($result3, MYSQL_ASSOC)) {
?>
<option value="<?php echo $line['ingredientname'];?>"> <?php echo $line['ingredientname'];?> </option>
<?php
}
?>
Ingredient 4:<select name = "dropdown4" id = "drop4"/>
<?php
while ($line = mysql_fetch_array($result4, MYSQL_ASSOC)) {
?>
<option value="<?php echo $line['ingredientname'];?>"> <?php echo $line['ingredientname'];?> </option>
<?php
}
?>

Answer 1

You are attempting to use XML style self-closing tag syntax for your select elements (<select />) this is wrong and browsers will perform error recovery by ignoring the /.
Consequently, the end tags (</select>) are missing from all your select elements. So you are trying to place your subsequence select elements inside the first one.
Even if you could use self-closing tag syntax on arbitrary elements, the option elements need to be descendants of the select element to which they belong!
A validator would have picked this up for you.

Answer 2

It's because you're not closing your select boxes
For example, change to this:
Ingredient 1:<select name= "dropdown1" id = "drop1"/>
<?php
while ($line = mysql_fetch_array($result1, MYSQL_ASSOC)) {
?>
<option value="<?php echo $line['ingredientname'];?>"> <?php echo $line['ingredientname'];?> </option>
<?php
}
?>
</select>

Answer 3

close your select tag
Ingredient 1:<select name= "dropdown1" id = "drop1"/>
<?php
while ($line = mysql_fetch_array($result1, MYSQL_ASSOC)) {
?>
<option value="<?php echo $line['ingredientname'];?>"> <?php echo $line['ingredientname'];?> </option>
<?php
}
?>
</select>
Ingredient 2:<select name = "dropdown2" id = "drop2"/>
<?php
while ($line = mysql_fetch_array($result2, MYSQL_ASSOC)) {
?>
<option value="<?php echo $line['ingredientname'];?>"> <?php echo $line['ingredientname'];?> </option>
<?php
}
?>
</select>

Answer 4

It is because of select it ends with /> it should end with >
w3c validator gives error
self-closing syntax (/>) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
Next time you should use http://validator.w3.org/ to check your code.