SitePoint Sponsor

User Tag List

Results 1 to 3 of 3

Thread: Getting value from calculator into PHP

  1. Nov 8, 2003 08:44 #1
    jenem
    jenem is offline
    SitePoint Member
    Join Date
    Nov 2003
    Location
    Australia
    Posts
    2
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Getting value from calculator into PHP

    Hi there, I hope I am posting in the right forum and I am reallly hoping someone can help me.

    I have an order form that uses a javascript calculator to calculate a
    garment size.
    I need to pass the final calculation to the shopping cart but I just can't
    seem to figure it out. Gone blank...again.

    The order form looks like this
    HTML Code:
    [left][small]
<body onLoad="FillHip()">
<form name="size" action="checkout_payment.php?products_id=65&action=add_product" method="post">
<table  border=0 align="center">
<tbody>
<tr>
<td colspan="2" valign="top"><p><strong>PANTS - $279.95</strong> </p>
Qty &nbsp;<input name=cart_quantity[] id=cart_quantity[] value="0" size="5"><br>
Waist &nbsp; <input type="hidden" name ="id[txt_7]"> 
<input name="txtWaist" type="TEXT"  size="5" maxlength="5">&nbsp;
<select name="waist"  onChange="FillHip()">
<option value="inc" selected>inches</option>
<option value="cms">cms</option>
</select>
<input type="hidden" name ="id[11]2"> <br>
Hips&nbsp;<input type="hidden" name ="id[txt_6]">&nbsp;
<input name="txtHip" type="text"  id="txtHip" size="5">&nbsp;
<select name="hip" >
<option value="inc" selected>inches</option>
</select>
<br>
<input name="btnCalc2" type="button" id="btnCalc22" onClick="calcWHR();" value="Calculate">
<br>
<br>
Size&nbsp; <input name="txtWHR" type="TEXT"  onFocus="blur();" size="10" maxlength="4">
<br>
Or &nbsp;&nbsp; <select name="id[11]" >
<option value="" selected>Select Size</option>
<option value="30">XS</option>
<option value="31">S</option>
<option value="32">M</option>
<option value="33">L</option>
<option value="34">XL</option>
<option value="37">2XL</option>
<option value="35">3XL</option>
<option value="36">4XL</option>
</select>
<br>
<br>
<input name="submit" type="button" id="submit" value="Submit" >
<input type="hidden" name="products_id" value="65">
</td>
</tr>
</tbody>
</table>
</form>
</body>[/small][/left][small]
[/small]
    The js calculator looks like this -
    Code:
    

=========================================
/********** VARIABLES **********/

var szMsg;
var fWaist;
var fHip;
var str_ind;
var str;

/********** VALIDATION **********/

//FUNCTION TO VALIDATE RANGES FOR NUMERIC ENTRIES
function verNumber(szValue,szQuestName,nMin,nMax,bOptional) {
var bIsNum = false;
//DETERMINE IF BOX IS EMPTY
if (szValue.length == 0 && !bOptional) {
	szMsg += '  ' + szQuestName + ' requires a numeric value with no letters or spaces.\n';
}
//DETERMINE IF BOX IS NOT A NUMBER

if(str == "inc"){
	for (var i=0; i< szValue.length; i++) {
		if ((szValue.substring(i,i+1) != "0") &&
				(szValue.substring(i,i+1) != "1") &&
				(szValue.substring(i,i+1) != "2") &&
				(szValue.substring(i,i+1) != "3") &&
				(szValue.substring(i,i+1) != "4") &&
				(szValue.substring(i,i+1) != "5") &&
				(szValue.substring(i,i+1) != "6") &&
				(szValue.substring(i,i+1) != "7") &&
				(szValue.substring(i,i+1) != "8") &&
				(szValue.substring(i,i+1) != "9") &&
				(szValue.substring(i,i+1) != ".")) {
			bIsNum = false;
			szMsg += '  ' + szQuestName + ' requires a positive numeric 
			value with no letters or spaces.Please take care of format.\n';
			break;
		}
		else {
			bIsNum = true;
		}
	}
}else{
	for (var i=0; i< szValue.length; i++) {
		if ((szValue.substring(i,i+1) != "0") &&
				(szValue.substring(i,i+1) != "1") &&
				(szValue.substring(i,i+1) != "2") &&
				(szValue.substring(i,i+1) != "3") &&
				(szValue.substring(i,i+1) != "4") &&
				(szValue.substring(i,i+1) != "5") &&
				(szValue.substring(i,i+1) != "6") &&
				(szValue.substring(i,i+1) != "7") &&
				(szValue.substring(i,i+1) != "8") &&
				(szValue.substring(i,i+1) != "9") &&
				(szValue.substring(i,i+1) != ".")) {
			bIsNum = false;
			szMsg += '  ' + szQuestName + ' requires a positive numeric value with no letters or spaces.Please take care of format\n';
			break;
		}
		else {
			bIsNum = true;
		}
	}
}

if (bIsNum) {
	if ((szValue > nMax) || (szValue < nMin)) {
		szMsg += '  ' + szQuestName + ' requires a number between ' + nMin + ' and ' + nMax + '.\n';
	}
}
}


/********** OTHER FUNCTIONS **********/

//FUNCTION TO HALT SUBMISSION AND GENERATE ALERT MESSAGE
//IF GLOBAL VARIABLE SZMSG IS NOT EMPTY.
function checkIt() {
//CHECK GLOBAL VAR SZMSG.
//IF NOT EMPTY PRINT CONTENTS AND RETURN VALUE OF FALSE
if (szMsg != "") {
	//PRINT ALERT BOX
	alert('________________________________________________________\n\n' +
		'The following question(s) was not completed properly:\n\n' + szMsg +
		'\n________________________________________________________\n\n' +
		'Please correct and re-submit form.');
	return false;
}
else {
	return true;
}
}

/********** CALCULATION **********/

//FUNCTION TO CALCULATE WHR
function calcWHR() {
szMsg = "";
var xSize = 0;

fWaist = document.size.txtWaist.value;
fHip   = document.size.txtHip.value;

str_ind = window.document.size.waist.selectedIndex;
str     = window.document.size.waist.options[str_ind].value;

verNumber(fWaist,"Waist measurement",0,999,false);
verNumber(fHip,"Hip measurement",0,999,false);

if (checkIt()) {
		
	if(str == "inc"){
			
		fWaistMo = parseFloat(fWaist.substring(0, 2));
		fHipMo   = parseFloat(fHip.substring(0, 2));
		
		fWaistBal = fWaist.substring(2,5);
		if(fWaistBal != ""){
		   fWaistP  = parseFloat(fWaist.substring(2,3)); 	
		   fWaistP1 = parseFloat(fWaist.substring(4,5)); 	
		   decPoint = 	fWaistP/fWaistP1;
		   fWaistMo = fWaistMo + decPoint;
		}
		
		fHipBal   = fHip.substring(2,5);
		if(fHipBal != ""){
		   fHipP  = parseFloat(fHip.substring(2,3)); 	
		   fHipP1 = parseFloat(fHip.substring(4,5));
		   decPoint = 	fHipP/fHipP1;
		   fHipMo = fHipMo + decPoint;
		}		
	
		if(fWaistMo >= 1 && fWaistMo < 38.5 && fHipMo >= 36.5 && fHipMo < 38.5){
			xSize = "XS";		
		}		

		if(fWaistMo >= 1 && fWaistMo < 40.5 && fHipMo >= 38.5 && fHipMo < 40.5){
			xSize = "S";		
		}
		if(fWaistMo >= 1 && fWaistMo < 42.5 && fHipMo >= 40.5 && fHipMo < 42.5){
			xSize = "M";		
		}
		if(fWaistMo >= 1 && fWaistMo < 44.5 && fHipMo >= 42.5 && fHipMo < 44.5){
			xSize = "L";		
		}
		if(fWaistMo >= 1 && fWaistMo < 46.5 && fHipMo >= 44.5 && fHipMo < 46.5){
			xSize = "XL";		
		}
		if(fWaistMo >= 1 && fWaistMo < 48.5 && fHipMo >= 46.5 && fHipMo < 48.5){
			xSize = "2XL";		
		}		

		if(fWaistMo >= 1 && fWaistMo < 50.5 && fHipMo >= 48.5 && fHipMo < 50.5){
			xSize = "3XL";		
		}		

		if(fWaistMo >= 1 && fWaistMo < 52.5 && fHipMo >= 50.5 && fHipMo < 52.5){
			xSize = "4XL";		
		}
	}else{
		
	fWaistMo = parseFloat(fWaist);
	fHipMo   = parseFloat(fHip);

	
	if(fWaistMo >= 1 && fWaistMo < 96.50 && fHipMo >= 91.50 && fHipMo < 96.50){
		xSize = "XS";		
	}		

	if(fWaistMo >= 1 && fWaistMo < 101.50 && fHipMo >= 96.50 && fHipMo < 101.50){
		xSize = "S";		
	}
	if(fWaistMo >= 1 && fWaistMo < 106.50 && fHipMo >= 101.50 && fHipMo < 106.50){
		xSize = "M";		
	}
	if(fWaistMo >= 1 && fWaistMo < 111.50 && fHipMo >= 106.50 && fHipMo < 111.50){
		xSize = "L";		
	}
	if(fWaistMo >= 1 && fWaistMo < 116.50 && fHipMo >= 111.50 && fHipMo < 116.50){
		xSize = "XL";		
	}
	if(fWaistMo >= 1 && fWaistMo < 121.50 && fHipMo >= 116.50 && fHipMo < 121.50){
		xSize = "2XL";		
	}		

	if(fWaistMo >= 1 && fWaistMo < 126.50 && fHipMo >= 121.50 && fHipMo < 126.50){
		xSize = "3XL";		
	}		

	if(fWaistMo >= 1 && fWaistMo < 131.50 && fHipMo >= 126.50 && fHipMo < 131.50){
		xSize = "4XL";		
	}			
	
}
if(xSize == 0){
	alert("We apologize but it appears we were unable to calculate your size.");		
}
size.txtWHR.value = xSize;
	}
}
	
function FillHip()
{

	str_ind = window.document.size.waist.selectedIndex;
	str     = window.document.size.waist.options[str_ind].value;
	
	if(str == "inc"){
		window.document.size.hip.options[0].value = "inc";
		window.document.size.hip.options[0].text = "inches";		
	}else{
		window.document.size.hip.options[0].value = "cms";
		window.document.size.hip.options[0].text = "cms";		
	}
	
}
	
=========================================
    The calculator works fine but obviously I am missing something because
    it is not passing the value to the shopping cart. I am hoping for a simple
    solution and not something to complicated for me to understand -
    "beginnerish" in a word.

    The shopping cart I am using is OScommerce - very steep learning curve -
    and all the other values in other sections of the form are passed fine but
    not the one in the text box that I want.

    I would be truly grateful for some guidance from anyone who can see what I am doing
    wrong - aside from biting off more than I can chew !

    Thank you in advance to anyone who takes the time to help me out.

    jenem
    _____________________________________
    To err is human--and to blame it on a computer is even more so
    Last edited by jenem; Nov 8, 2003 at 09:26.
  2. Nov 8, 2003 09:09 #2
    dtang4
    dtang4 is offline
    SitePoint Addict
    Join Date
    Jan 2002
    Location
    NJ/NY
    Posts
    346
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hey,
    If you want to pass the value to PHP, you will need to refresh the page (or jump to a new page). The reason is because PHP is serverside, so once the page has finished loading, you can't really use any PHP functions anymore.

    So, I was suggesting something like this... after your javascript calculator calculates a value, refresh the page with a value appended to the url (e.g. url.php?calculatedvalue=##). Your php script then can use $_GET['calculatedvalue'] to process whatever.

    Hope that sounds reasonable... heh.
    Forget WordPress. Launch a 300,000+ page autoscaling Job Search.
    FREE GUIDES
    Google Rapid Indexer - 21K in 21 Days - 7 Steps to Start a Site
  3. Nov 8, 2003 10:17 #3
    jenem
    jenem is offline
    SitePoint Member
    Join Date
    Nov 2003
    Location
    Australia
    Posts
    2
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks for your response, I will give it a try and see how I go.

    I appreciate you taking the time to respond.


    Jene
« Previous Thread | Next Thread »

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules