<?php var_dump($_POST); print "GO!<br>"; //error_reporting(E_ALL & ~E_NOTICE);include("config.php");// I'm assuming that dropdown 1_1 is the first one, 1_2 is the second one and so on.// subcat_1_1_1 is the first checkbox in the first dropdown in the first of the three sections.// subcat_1_1_2 is the second checkbox in that dropdown and so on.$categories = array();$name = $_POST['name'];$green = $_POST['green'];$eco = $_POST['eco'];$dfe = $_POST['dfe'];print ("Name: $name<br>");print ("$green<br>");print ("$eco<br>");print ("$dfe<br>");// Just a little trick to make multiple variables on a single line$section_exists = true;$category_exists = true;$subcategory_exists = true;//echo "catexists: $category_exists<br>secexists: $section_exists<br>subcatexists: $subcategory_exists<br>"; // While the array-key exists, this loop will run and collect all checkboxes// in the array called categories print "START<br>";for($w=1;$w<500;$w++){ echo "loop1<br>"; if(!array_key_exists('subcat_'.$w.'_1_1', $_POST)) { echo "loop2<br>"; //$w = -1; break; } for($x=1;$x<500;$x++) { echo "loop3<br>"; if(!array_key_exists('subcat_1_'.$x.'_1', $_POST)) { echo "loop4<br>"; //$x = -1; break; } for($y=1;$y<500;$y++) { echo "loop5<br>"; if(!array_key_exists('subcat_1_'.$x.'_'.$y, $_POST)) { echo "loop6<br>"; // $y = -1; break; } echo "loop7<br>"; $categories[$w][$x][] = $y; } }}print_r ($categories);print "<br> TOP1<br>"; // Now you have an array with all checkboxes, something like// $subcat[1][1][1] = The number of the first checked checkbox in the first category// $subcat[1][1][2] = The number of the second checked checkbox in the first category and so on.// $subcat[1][2][1] = The number of the first checked checkbox in the second category// $subcat[1][2][2] = The number of the second checked checkbox in the second category and so on.// $subcat[2][1][1] = The number of the first checked checkbox in the first category, second section// $subcat[2][1][2] = The number of the second checked checkbox in the first category, second section and so on.print "MIDDLE1<br>" ; $key_exists = true;$subkey_exists = true;$strings = array();// Loops through and turns all categories' arrays into stringsfor($h=1;$h<500;$h++){ echo "loop8<br>"; if(!array_key_exists($h, $categories)) { echo "loop9<br>"; //$key_exists = false; break; } if (!array_key_exists(0, $categories[$h])) { echo "loop10<br>"; //$key_exists = false; break; } for($i=1;$i<500;$i++) { echo "loop11<br>"; if(!array_key_exists('['.$h.']['.$i.']', $categories)) { echo "loop12<br>"; //$subkey_exists = false; break; } print(sizeof($strings)); echo "<br>"; // This will turn the array into a string with all subcategories, separated by ;. // For example, 0;3;53 if subcategory 0, 3 and 53 are checked $strings[$h][$i] = implode(';', $categories[$h][$i]); echo "<br>"; echo implode(';', $categories[$h][$i]); echo "<br>"; }} print "MIDDLE2<br>";// Now strings[] contains all the strings (like 1;3;5 and 3;5;7). Loop through the array:for($x=1;$x<sizeof($strings);$x++){ echo "loop13"; for($y=1;$y<sizeof($strings[$x]);$y++) { echo "loop14"; // *build a query using the string* // Echoing just for debugging or whatever. print("INSERT into item_test (id, name, green, eco, dfe, category, subcategory) VALUES ('','$name','$green','$eco','$dfe','$x','$y')"); }}print "END<br>"; // Done.// Store that field in the DB and then when you want them into an array again, do:// $array = exlode(';', $string);print_r($strings);print "<br>";?>