Skipping Database Entries using a loop

dunnomenaime

I am using this code to read from a paper database and display the result in a dropdown menu in out website. What I am trying to do is skip the entries that have the resolution field less than 2880 (elseif($paper_types_4800[$x+5]) < 2880 in the code below). I've gotten it to just echo blank spaces in the dropdown menu but they can still be selected and submitted. How to I skip these entries entirely in the dropdown menu?

<?php
				echo '<option selected value="NULL">Please Select Your Paper Type</option>';

			for($x = 0; ($no_4800_papers * 6) > $x;$x = ($x + 6)) {
				echo '<option value="' . $paper_types_4800[$x] . ':' . $paper_types_4800[$x+3] . ':' . $paper_types_4800[$x+4] . ':' . $paper_types_4800[$x+2] . '">';
			//SPECIAL EXCEPTION FOR USER SUPPLIED PAPER --- DISPLAY WITHOUT WIDTH AND HEIGHT	
				if($paper_types_4800[$x+3] == 0 && $paper_types_4800[$x+4] == 0) {
					echo '' . $paper_types_4800[$x] . ', ($' . $paper_types_4800[$x+2] . ')</option>';
				}
				elseif($paper_types_4800[$x+5] < 2880) {	
				 	echo '' . $paper_types_4800[$x] . ', ' . $paper_types_4800[$x+3] . '" x ' . $paper_types_4800[$x+4] . '" ($' . $paper_types_4800[$x+2] . ') [' . $paper_types_4800[$x+5] . 'dpi Only]</option>';
				}
				else {
					echo '' . $paper_types_4800[$x] . ', ' . $paper_types_4800[$x+3] . '" x ' . $paper_types_4800[$x+4] . '" ($' . $paper_types_4800[$x+2] . ')</option>';
					}

			}

?>

bradgrafelman

Try looking into the [man]continue[/man] command.

dunnomenaime

I tried that but it had the same result, the dropdown menu still showed blank entries.

bradgrafelman

Then you must not have used it correctly... show us how you attempted to use 'continue'.

dunnomenaime

<?php 
                echo '<option selected value="NULL">Please Select Your Paper Type</option>'; 

            for($x = 0; ($no_4800_papers * 6) > $x;$x = ($x + 6)) { 
                echo '<option value="' . $paper_types_4800[$x] . ':' . $paper_types_4800[$x+3] . ':' . $paper_types_4800[$x+4] . ':' . $paper_types_4800[$x+2] . '">'; 
            //SPECIAL EXCEPTION FOR USER SUPPLIED PAPER --- DISPLAY WITHOUT WIDTH AND HEIGHT     
                if($paper_types_4800[$x+3] == 0 && $paper_types_4800[$x+4] == 0) { 
                    echo '' . $paper_types_4800[$x] . ', ($' . $paper_types_4800[$x+2] . ')</option>'; 
                } 
          elseif($paper_types_4800[$x+5] < 2880) {     
                    continue;
                }
                else { 
                    echo '' . $paper_types_4800[$x] . ', ' . $paper_types_4800[$x+3] . '" x ' . $paper_types_4800[$x+4] . '" ($' . $paper_types_4800[$x+2] . ')</option>'; 
                    } 

            } 

?>

I also tried continue with several integer arguements after it to the same effect.

bradgrafelman

That's because you already output the beginning <option> tag before PHP even has a chance to skip this iteration of the loop.

You need to re-structure the logic so that the code checks if the variable is less than 2880 (if so, skip this iteration) before you echo out the <option> tag.