Dynamically Loading Child Dropdowns Using Parent Dropdown Selection Efficient management of dropdown menus is a common requirement in web development, especially when creating dynamic forms. This blog explores a simple and scalable approach to dynamically loading child dropdowns based on the selected option in parent dropdowns using a single jQuery Ajax function. Key Highlights of the Method Unified Ajax Call: A single Ajax function handles multiple dropdown relationships, reducing repetitive code. Dynamic Data Preparation: Based on the parent dropdown's ID, relevant data is passed to the server to fetch the required child dropdown options. Enhanced User Experience: Child dropdown options update instantly, ensuring responsiveness and interactivity. The JavaScript Solution Below is the JavaScript code using jQuery for dynamically updating child dropdowns: $ ( document ). ready ( function () {   // Unified Ajax Call for Dropdown Updates   $ ( '.rnscall' ). on ( 'chang...

The below function is used to calculate number of working days in a month. Function Calling: $no_days= rns_countDays ($row['date'],array(0, 6)); Function: function rns_countDays($date, $ignore) {      //echo countDays(array(0, 6), start_date, end_date);     $count = 0;     $ndays=0;     $now=date("Y-m-d");     $month=date("m",strtotime($date));     $year=date("y",strtotime($date));            if($month==date("m") && $year==date('y')) { //Date diff month start date to current date         $from_date = new DateTime($year.'-'.$month.'-01');         $to_date = new DateTime($now);         $days_diff=$from_date->diff($to_date); //echo $days_diff->d;         $ndays=$days_diff->format("%a");     ...

Today eabhyas come up with a Query String function. This function is useful to get the Query String from URL. This Function is used to get current filename with first parameter(Query String) from URL using PHP function . Function: function rns_QueryString_first($incomingURL){     preg_match('/[^&]+/', $incomingURL, $match);     return $outgoingURL = $match[0]; } Example: $path="property_add?id=3&aa=aa&b=123"; define('RNSFIFQ', rns_QueryString_first($path)); echo RNSFIFQ; Output: property_add?id=3

The below PHP function used to Populate HTML Dropdown List from Array Values. Function : <?php function rnsdrop_Array($arr,$selids,$title='Select'){     print"<option value='0'>".$title."</option>";     foreach($arr as $id =>$name) {     if($selids==$id && $id!=0)         print "<option value=\"".$id."\" selected>".stripslashes($name)."</option>\r\n";     else if($id!=0)         print "<option value=\"".$id."\">".stripslashes($name)."</option>\r\n";     } } ?>   The below example explains how to generate dropdown list with array values using simple PHP function.   Example: <?php $arr=array(0=>'-',1=>'East','West','North','South'); rnsdrop_Array($prop_facing, @$row['prop_facing'],"Select Property Fac...