PHP - Moved: Having Trouble With A % Calculation
This topic has been moved to PHP Math Help.
http://www.phpfreaks.com/forums/index.php?topic=321684.0 Similar TutorialsI wrote some code that asks the user to order some pizzas and all my out put is working great except I cant seem to calculate the total properly I attached my file if anyone wants to take a look for me but what I want to happen is kinda like this calcprice = ( (size of pizza + topping) * quanity ) + delivery charge thanks to anyone who cal help me out =] This topic has been moved to MySQL Help. http://www.phpfreaks.com/forums/index.php?topic=331877.0 This topic has been moved to CSS Help. http://www.phpfreaks.com/forums/index.php?topic=342058.0 This topic has been moved to Third Party PHP Scripts. http://www.phpfreaks.com/forums/index.php?topic=306321.0 This topic has been moved to CSS Help. http://www.phpfreaks.com/forums/index.php?topic=349151.0 This topic has been moved to Ajax Help. http://www.phpfreaks.com/forums/index.php?topic=351506.0 This topic has been moved to Other Libraries and Frameworks. http://www.phpfreaks.com/forums/index.php?topic=322457.0 This topic has been moved to Ajax Help. http://www.phpfreaks.com/forums/index.php?topic=330011.0 This topic has been moved to MySQL Help. http://www.phpfreaks.com/forums/index.php?topic=313679.0 This topic has been moved to Other Libraries and Frameworks. http://www.phpfreaks.com/forums/index.php?topic=319295.0 This topic has been moved to Other Libraries and Frameworks. http://www.phpfreaks.com/forums/index.php?topic=351914.0 Hi, I have a calculation issue in my php. Below is my code: $ Code: [Select] moduletotal = 0; $modulecount = 0; $sessionweight = 0; while ($row = mysql_fetch_array($result)){ $moduletotal += $row['Mark']; $modulemark = (int)($moduletotal); // Here and above is the calculation which is simply adding the total number of marks // Below is the code that displays my results. The variable of the calculation is shown at the end of the last if statement (3rd one down) $output = ""; $studentId = false; $courseId = false; $moduleId = false; if($studentId != $row['StudentUsername']) { $studentId = $row['StudentUsername']; $output .= "<p><strong>Student:</strong> {$row['StudentForename']} {$row['StudentSurname']} ({$row['StudentUsername']})"; } if($courseId != $row['CourseId']) { $courseId = $row['CourseId']; $output .= "<br><strong>Course:</strong> {$row['CourseId']} - {$row['CourseName']} <br><strong>Year:</strong> {$row['Year']}</p>"; } if($moduleId != $row['ModuleId']) { $moduleId = $row['ModuleId']; $output .= "<p><br><strong>Module:</strong> {$row['ModuleId']} - {$row['ModuleName']} {$row['Credits']} $modulemark</p>"; } $output .= "<p><strong>Session:</strong> {$row['SessionId']} {$row['Mark']} {$row['Grade']} {$row['SessionWeight']}%</p>"; } echo $output; ?>The Results look like this at the moment (The answer the calculation is next to each Module): Student: Mayur Patel (u0867587) Course: INFO101 - Bsc Information Communication Technology Year: 3 Module: CHI2550 - Modern Database Applications 20 72 (72 is the answer to the calculation for the first module but this is incorrect at it should also add the 67 and thus become 139) Session: AAB 72 A 20% Session: AAE 67 B 40% Module: CHI2513 - Systems Strategy 20 200 (200 is the answer to the calculation for this module but this is incorrect it should be only 61. But what it has done is that it has added the 72 and 67 from the first module and added it with the 61 in this module) Session: AAD 61 B 50% SO WHAT MY QUESTION IS HOW CAN I GET THE CALCULATION SO THAT IT ONLY ADDS UP EACH SESSION MARKS THAT BELONGS TO A MODULE ONLY? IN THE EXAMPLE ABOVE IT SHOULD ONLY ADD THE MARKS FOR SESSION AAB AND AAE IN THE MODERN DATABASE APPLICATIONS MODULE AND THEN WHEN IT GETS TO THE NEXT MODULE WHICH IS SYSTEMS STRATEGY, THE MARKS FOR THAT MODULE SHOULD START AGAIN AND ADD ON THE MARKS FOR THE SESSION AAD IN THAT MODULE. HOPEFULLY YOU UNDERSTAND AND THANK YOU Below is the query if you want to look at it: Code: [Select] $query = " SELECT c.CourseName, st.CourseId, st.Year, st.StudentUsername, st.StudentForename, st.StudentSurname, s.ModuleId, s.SessionId, s.SessionWeight, gr.Mark, gr.Grade m.ModuleName, m.Credits, FROM Course c INNER JOIN Student st ON c.CourseId = st.CourseId JOIN Grade_Report gr ON st.StudentId = gr.StudentId JOIN Session s ON gr.SessionId = s.SessionId JOIN Module m ON s.ModuleId = m.ModuleId WHERE (st.StudentUsername = '".mysql_real_escape_string($studentid)."') ORDER BY c.CourseName, st.StudentUsername, m.ModuleName, s.SessionId "; Dear All, I am trying to fetch the sum of a column for current date and subtract a value from the sum for currently selected record. The query i build works fine in MySql but when the same query i placed in php no result it's blank. Below is the query.
<?php //Calculation for no of paxs. $query2=mysqli_query($con,"SELECT SUM(noopaxs-gattl) FROM tblsupvisitor where date(EnterDate) = CURDATE() || gst = 'INH' || gst = 'IN' GROUP BY confno"); $calc_no_paxs_for_today=mysqli_fetch_row($query2); $gattl=$calc_no_paxs_for_today['gattl']; ?>
and her is the assignment to the textbox.
<div class="row form-group"> <div class="col col-md-3"> <label for="textarea-input" style="color: purple" class=" form-control-label"><strong>Total No. Of Adults</strong></label> </div> <div class="col-12 col-md-9"> <input name="gattl" id="gattl" rows="9" class="form-control" required="" value="<?php echo $gattl;?>"> </div> </div>
Any help in this regard will be highly appreciated.
Kind Regards, Naveed. Hi, I have an itinerary form at http://www.happydaysremovals.com/estimate.html Customers fill this in, and it uses phpmailer-fe to email the results to myself. I use a HTML .tpl file so I can make the output email look as I want. All that is fine, but I would like a volume calculator. Next to each item on the form, the customer enters the amount of that item, usually 1 or 2. If it was say a setee, I want to define that a setee = 30 cubic feet, for example. Then I want the calculator to calculate the total cubic footage for all the variables, and include it in the html email. I know with javascript this can be done, but I was hoping for a PHP result and for it to somehow work in with phpmailer-fe, for example: </style> <script language="JavaScript"> function write_this() { var setteelarge; var setteemedium; var setteesmall; var setteelarge2; var setteemedium2; var setteesmall2; var setteelargeresult; var setteemediumresult; var setteesmallresult; var total; setteelarge = document.form1.LargeSettee.value; setteemedium = document.form1.MediumSettee.value; setteesmall = document.form1.SmallSettee.value; setteelarge2 = 45 setteemedium2 = 31 setteesmall2 = 22 setteelargeresult = (setteelarge * setteelarge2); setteemediumresult = (setteemedium * setteemedium2); setteesmallresult = (setteesmall * setteesmall2); total = (setteelargeresult+setteemediumresult+setteesmallresult) document.form1.Total_Cubic_Feet.value = total } </script> Basically, I want to be able to include the cubic feet total value to also be emailed to me in the HTML email, but preferably all in PHP. At the moment, I get everyones itinerary, but want to be automatically be able to work out the cubic footage. Thanks This is a bit of a puzzle. Look at the sum and result below: Code: [Select] $markTotal += ($session['Mark'] / 100 * $session['SessionWeight']); Result on Browser Module: CHI2550 - Modern Database Applications 41.2 (this is $markTotal) Session: AAB 72(this is $session['Mark']) 20% (this is $session['SessionWeight']) (The percentage signs are just add ons) Session: AAE 67(this is $session['Mark']) 40% (this is $session['SessionWeight']) As you can see the answer to the calculation above is right, the answer is 41 .2 as it adds up the two session marks, divide by 100 and then times it by the total amount of the percentage. But I want to include a total mark where except it is out of the total session percentage (60% for above example), it is out of a 100% but I can not work as simple as that as in above example one session is worth more than other. I have worked out that the answer for the total mark of the above example out of 100% should be 69, but how do I achieve this in my calculation. Thank you and any help is much appreciated So how Good day! I've been stumbled into a situation wherein the user have predefined time (this will be the expiration time) and the system will have to compare the user time based on server time. I've done the job in getting the time with timezone inclusion using javascript var userDate = new Date(); // output : Tue Dec 06 2011 16:18:23 GMT+0800 (PHT) I passed that javascript value using ajax to the server, the problem I encounter is the compare the current server date with the userDate. Any solution? Thanks in advance. Hi guys, $T_Start_Date = "2011-10-23"; $P_Days = "30"; I tried this Its working: $T_End_Date = date('Y-m-d', strtotime("+$P_Days days"); but why am not getting this: $T_End_Date = date($T_Start_Date, strtotime("+$P_Days days")); thanks When I use this: echo number_format(150 + 20.95 + .5, 2); ... I get 170.95. Yet on my calculator, 150 + 20.95 + .5 gives me 171.45. Why is that? This is a bit of a puzzle. Look at the sum and result below: Code: [Select] $markTotal += ($session['Mark'] / 100 * $session['SessionWeight']); Result on Browser with explanation to help you: Module: CHI2550 - Modern Database Applications 35% (this is $markTotal) ... This is where I want add the total mark for 100% Session: AAB 100% (this is $session['Mark']) 10% (this is $session['SessionWeight']) Session: AAE 50% (this is $session['Mark']) 50% (this is $session['SessionWeight']) All percentage marks above are just add ons. As you can see the answer to the calculation above is right, the answer is 35 as it adds up the two session marks, divide by 100 and then times it by the total amount of the percentage. But I want to include a total mark where except it is out of the total session percentage (60% for above example as one Session is 40% and the other is 20%), it is out of a 100% but I can not work as simple as that as in above example one session is worth more than other. The total mark out of 100% of the above example should be 65%, but how do I achieve this in my calculation. It is not as simple as dividing the $session['Mark'] because one session is worth more than the other. So the above example will have 2 marks: one mark out of total percentage of the Sessions which for the above example is 35% and second mark is out of the full 100% of the module which is 65%. Thank you and any help is much appreciated Please help me calculate this according to the "if" condition. $scoreM['newtag'] + $scoreU['newPrice'] $SomeVar = 'currentPrice'; $queryU = "SELECT * FROM db1 WHERE bookprice = '".$SomeVar."'"; $resultU = mysql_query($queryU); $scoreU = mysql_fetch_assoc($resultU); echo $scoreU['newPrice']; echo $scoreU['weeklyScr']; echo $scoreU['priceX']; //// $WinVar = 'additionalAmount'; $query = "SELECT * FROM db2 WHERE booklist = '".$WinVar."'"; $result = mysql_query($query); $scoreM = mysql_fetch_assoc($result); echo $scoreM['newtag']; echo $scoreM['priceY']; if($scoreU['priceX']== $scoreM['priceY']) { $udatedValue = ($scoreM['newtag'] - $scoreU['newPrice']); echo(udatedValue); } else{ $udatedValue = ($scoreM['newtag'] + $scoreU['newPrice']); echo(udatedValue); } |