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Thread: Setting javascript variable equal to php variable by passing a parameter

  1. #1
    Join Date
    Aug 2011
    Posts
    1

    Setting javascript variable equal to php variable by passing a parameter

    Code:
    I am having problems with the following. I am wanting to hide <tr> in my table (employees) and only show employees that are in the selected department (selected via dropdown box).
    
    I need to set a javascript array to a php array. I am looping and assigning the array and am wanting to pass a javascript variable as the index in php array. I have marked my problem lines in red. Thanx for any help.
    
    <script type="text/javascript" >  
     
        function display_elements()
        {     
                     var departments = new Array; 
                     var dep_element_counter = new Array;
    		 var dep_count = "<?php echo count($departments); ?>";
    		 var e = document.getElementById("jdepartment");
                     var sel_dep_id = e.options[e.selectedIndex].value;
    		 var id;
    		 
    		 for(x=0;x<dep_count;x++)
    		 {
    
    	         departments[x] = "<?php echo $departments[" + x + "]; ?>";
    			
    		dep_element_counter[departments[x]] = "<?php echo $dep_emp_counter[$departments[" + x + "]]; ?>";
    		    document.write(dep_element_counter[departments[x]]);
    
    		 }			
               	
                     if(departments[x] == sel_dep_id)
                     {document.getElementById(id).style.display = "";
    		 }
    		else
    		{document.getElementById(id).style.display = "none";
    		}	  
    
    }
    </script>

  2. #2
    Join Date
    May 2011
    Posts
    194

    maybe this

    Hi,

    new Array is non constructor, new Array() is a constructor

    var departments = new Array(); // values are indexes for dep_element_counter[departments[x]]
    // string index possible ?

    var dep_element_counter = new Array(); // values are stings

    x is an index

    departments[x] = "<?php echo $departments[" + x + "]; ?>"; // index is a string


    dep_element_counter[departments[x]] = ....

    document.write(dep_element_counter[departments[x]]); // document.write() maybe create a new document

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