cherubrock74 Posted April 20, 2009 Share Posted April 20, 2009 I searched the forum but cannot find anything already published that helps me... I have 3 drop down menus that are populated using a mysql database based on the user selection from the first menu, the second menu display only certain options, and so on to the third menu... I have to use this drop down menus in a form and I would like to add other drop down menus similar to the three I just described. Basically I need to "copy" the first 3 menus and display 6 or 9 on the form...each group of 3 menus are independent from the others I tried to tweak the code (which I got from an on line tutorial) but I need help here is my working code so far <?php require "config.php"; ?> <!doctype html public "-//w3c//dtd html 3.2//en"> <html> <head> <title>Demo of Three Multiple drop down list box from plus2net</title> <SCRIPT language=JavaScript> function reload(form) { var val=form.cat.options[form.cat.options.selectedIndex].value; self.location='dd3.php?cat=' + val ; } function reload3(form) { var val=form.cat.options[form.cat.options.selectedIndex].value; var val2=form.subcat.options[form.subcat.options.selectedIndex].value; self.location='dd3.php?cat=' + val + '&cat3=' + val2 ; } </script> </head> <style type="text/css"> select {width: 300px; max-height: 12px} </style> <body> <? ///////// Getting the data from Mysql table for first list box////////// $quer2=mysql_query("SELECT DISTINCT category,cat_id FROM category order by category"); ///////////// End of query for first list box//////////// /////// for second drop down list we will check if category is selected else we will display all the subcategory///// $cat=$HTTP_GET_VARS['cat']; // This line is added to take care if your global variable is off if(isset($cat) and strlen($cat) > 0){ $quer=mysql_query("SELECT DISTINCT subcategory,subcat_id FROM subcategory where cat_id=$cat order by subcategory"); }else{$quer=mysql_query("SELECT DISTINCT subcategory,subcat_id FROM subcategory order by subcategory"); } ////////// end of query for second subcategory drop down list box /////////////////////////// /////// for Third drop down list we will check if sub category is selected else we will display all the subcategory3///// $cat3=$HTTP_GET_VARS['cat3']; // This line is added to take care if your global variable is off if(isset($cat3) and strlen($cat3) > 0){ $quer3=mysql_query("SELECT DISTINCT subcat2 FROM subcategory2 where subcat_id=$cat3 order by subcat2"); }else{$quer3=mysql_query("SELECT DISTINCT subcat2 FROM subcategory2 order by subcat2"); } ////////// end of query for third subcategory drop down list box /////////////////////////// echo "<form method=post name=f1 action='dd3ck.php'>"; ////////// Starting of first drop downlist ///////// echo "<select name='cat' onchange=\"reload(this.form)\"><option value=''>Select one</option>"; while($noticia2 = mysql_fetch_array($quer2)) { if($noticia2['cat_id']==@$cat){echo "<option selected value='$noticia2[cat_id]'>$noticia2[category]</option>"."<BR>";} else{echo "<option value='$noticia2[cat_id]'>$noticia2[category]</option>";} } echo "</select>"; ////////////////// This will end the first drop down list /////////// ////////// Starting of second drop downlist ///////// echo "<select name='subcat' onchange=\"reload3(this.form)\"><option value=''>Select one</option>"; while($noticia = mysql_fetch_array($quer)) { if($noticia['subcat_id']==@$cat3){echo "<option selected value='$noticia[subcat_id]'>$noticia[subcategory]</option>"."<BR>";} else{echo "<option value='$noticia[subcat_id]'>$noticia[subcategory]</option>";} } echo "</select>"; ////////////////// This will end the second drop down list /////////// ////////// Starting of third drop downlist ///////// echo "<select name='subcat3' ><option value=''>Select one</option>"; while($noticia = mysql_fetch_array($quer3)) { echo "<option value='$noticia[subcat2]'>$noticia[subcat2]</option>"; } echo "</select>"; ////////////////// This will end the third drop down list /////////// echo "<input type=submit value='Submit the form data'></form>"; ?> </body> </html> Quote Link to comment Share on other sites More sharing options...
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