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Please can someone show me how to code a simple addition all on the same page?

VinceGledhill

By VinceGledhill
in PHP Coding Help

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VinceGledhill Member

VinceGledhill

Posted
Posted

Hello People.

 

Please can someone point me to where I can learn to program the following all one one page?

 

Here is a screenshot of what I'm after.

time_calc.png

 

Idea being that you put hours and minutes into the top row.  Then hours and minutes into the next row.

Click the button and get the answer at the bottom.

 

The answer to 1 hour 40 minutes added to 1 hour 40 minutes should obviously be 3 hours 20 minutes.

 

Here's how I would approach it in another language, but am brand new to php hence the help required.

 

Make the following variables. 

Hour1

Hour2

Minute1

Minute2

Total_Hours

Total_Minutes

Combined_Time

 

I would then write something like

Total_minutes = minute1 + Minute2

Total_hours = Hour1 + hour2

combined time = Total_hours * 60 + (Total_Minutes)

 

// reset the total hours

Total_hours = 0

Loop here....

while combined_time >60 Total_hours = Total_hours + 1

combined_time = combined time -60

re-do the loop

 

Now in the boxes at the bottom put

bottom hour box = total hours

bottom minute box = combined_time (remaining minutes)

 

here's the code I have so far.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Untitled Document</title>

</head>

<body>

<table width="527" border="0" cellspacing="5" cellpadding="5" bgcolor="#c0c5c9">
<p>Time Calculator</p>
<p>Put your hours and minutes in the top boxes. Click the add time button<br />
  to get the answer
</p>
<table width="401" border="1" cellspacing="5" cellpadding="5">
  <tr>
    <td width="109"><input type="int" name="hour01" size="10" maxlength="10" /> 
      Hrs</td>
    <td width="251"><input type="int" name="min01" size="10" maxlength="10" /> 
      Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour02" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="min02" size="10" maxlength="10" /> 
      Mins</td>
  </tr>
  <tr>
    <td><input type="submit" name="submit" value="Add Time" /></td>
    <td><input name="hour_answer" type="int" size="10" maxlength="10" />
      Hrs
      <input type="int" name="minute_answer" size="10" maxlength="10" />
      Mins</td>
  </tr>
</table>

<tr></tr>
</body>
</html>

 

 

 

Cagecrawler Member

Cagecrawler

Posted
Posted

Your math would work, but an easier way is to say:

totalMins = combinedTime % 60;

totalHours = floor(combinedTime / 60);

 

As for getting the text where you want it, look into either working with html forms in php or using javascript to process the page without reloading.

QuickOldCar Regular Member

QuickOldCar

Posted
Posted

Here's a simple example

 

There is no checking for errors or numeric numbers this code, which you should do.

You can even add seconds to this, expand it to days,months or years even.

 

Add hours and minutes
<form action="" method="post" enctype="multipart/form-data">
Hours: <input type="text"  name="hour[]" /> Minutes: <input type="text"  name="minute[]" /><br />
Hours: <input type="text"  name="hour[]" /> Minutes: <input type="text"  name="minute[]" /><br />
<input type="submit" value="Add Them" />
</form> 

<?php
$hours = $_POST['hour'];
$minutes = $_POST['minute'];


function convertMinSec($number_value) {
$divided = floor($number_value / 60);
return $divided;
}

$addminutes = $minutes['0'] + $minutes['1'];
$hoursfromminutes = convertMinSec($addminutes);
$deduct_amount = 60 * $hoursfromminutes;
$totalminutes = $addminutes - $deduct_amount;
$totalhours = $hours['0'] + $hours['1'] + $hoursfromminutes;

echo $hours['0']." hours ".$minutes['0']." minutes<br />";
echo $hours['1']." hours ".$minutes['1']." minutes<br /><hr />";
echo "Total $totalhours hours $totalminutes  minutes<br />";

?>

QuickOldCar Regular Member

QuickOldCar

Posted
Posted

I redid this to place into your form, also changes the form a little to fix it.

 

<?php
$hours = $_POST['hour'];
$minutes = $_POST['minute'];

function convertMinSec($number_value) {
$divided = floor($number_value / 60);
return $divided;
}

$addminutes = $minutes['0'] + $minutes['1'];
$hoursfromminutes = convertMinSec($addminutes);
$deduct_amount = 60 * $hoursfromminutes;
$totalminutes = $addminutes - $deduct_amount;
$totalhours = $hours['0'] + $hours['1'] + $hoursfromminutes;
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Untitled Document</title>

</head>

<body>
<form action="" method="post" enctype="multipart/form-data">
<table width="527" border="0" cellspacing="5" cellpadding="5" bgcolor="#c0c5c9">
<p>Time Calculator</p>
<p>Put your hours and minutes in the top boxes. Click the add time button<br />
  to get the answer
</p>
<table width="401" border="1" cellspacing="5" cellpadding="5">
  <tr>
    <td width="119"><input type="int" name="hour[]" value="<?php echo $hours['0'];?>"size="10" maxlength="10" /> 
      Hrs</td>
    <td width="241"><input type="int" name="minute[]" value="<?php echo $minutes['0'];?>" size="10" maxlength="10" /> 
      Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]" value="<?php echo $hours['1'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]" value="<?php echo $minutes['1'];?>" size="10" maxlength="10" /> 
      Mins</td>
  </tr>
  <tr>
    <td><input type="submit" name="submit" value="Add Time" /></td>
    <td><input value="<?php echo $totalhours;?>" type="int" size="10" maxlength="10" />
      Hrs
      <input type="int" value="<?php echo $totalminutes;?>" size="10" maxlength="10" />
      Mins</td>
  </tr>
</table>
<tr></tr>
</form> 
</body>
</html>

QuickOldCar Regular Member

QuickOldCar

Posted
Posted

I revised this even more and made it to do whole or decimal numbers.

As for the seconds or decimals for the minutes, I rounded them.

 

I was going to make a selection on how many input fields to do and do it dynamic versus assigning them, but I think  already spent too much time on this.

 

Was certainly challenging though, it was fun.

You're just seeing the working one, and not all the test versions.

 

I tried it a while and seems pretty good and accurate.

 

Here's a demo

http://dynainternet.com/flight-log.php

 

Code:

<?php
$hours = $_POST['hour'];
$minutes = $_POST['minute'];
if($_POST['hour'] != '' || $_POST['minute'] != '') {

function decHrMinSec($number){
if(strpos($number,".") !== false){
$number_explode = explode(".", $number);
$pos_zero = $number_explode['0'];
$round_pos_one = round($number_explode['1'],2);
$pos_one = substr($round_pos_one,0,2);

if(strlen($pos_one) != range(1,2)) {
$pos_one = $pos_one * 10;
}

$multiply_sixty = $pos_zero * 60;
//multiply_sixty = floor($pos_zero * 60);
$total_result = $pos_one + $multiply_sixty;
} else {
$total_result = $number * 60;
}
return $total_result;
}

function convertMinSec($number_value) {
$divided = floor($number_value / 60);
return $divided;
}

$sum_minutes = array_sum($_POST['hour']);
$finalminutes = decHrMinSec($sum_minutes);
$addminutes = array_sum($_POST['minute']) + $finalminutes;
$totalhours = convertMinSec($addminutes);
$deduct_amount = 60 * $totalhours;
$allminutes=$addminutes - $deduct_amount;
$totalminutes = round($allminutes);

}
?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Flight Log Calculator</title>

</head>

<body>
<form action="" method="post" enctype="multipart/form-data">
  Pilots Logbook Calculator<br />
  
  <p>Put your times in the hours and minutes boxes then click the "Add Time" button to get your answer.
</p>

<table width="401" border="1" cellspacing="5" cellpadding="5">
  <tr>
    <td width="119"><input type="int" name="hour[]" value="<?php echo $hours['0'];?>"size="10" maxlength="10" /> 
      Hrs</td>
    <td width="241"><input type="int" name="minute[]" value="<?php echo $minutes['0'];?>" size="10" maxlength="10" /> 
      Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]" value="<?php echo $hours['1'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]" value="<?php echo $minutes['1'];?>" size="10" maxlength="10" /> 
      Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]2" value="<?php echo $hours['2'];?>" size="10" maxlength="10" />
    Hrs</td>
    <td><input type="int" name="minute[]2" value="<?php echo $minutes['2'];?>" size="10" maxlength="10" />
      Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]3" value="<?php echo $hours['3'];?>" size="10" maxlength="10" />
    Hrs</td>
    <td><input type="int" name="minute[]3" value="<?php echo $minutes['3'];?>" size="10" maxlength="10" />
      Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]4" value="<?php echo $hours['4'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]4" value="<?php echo $minutes['4'];?>" size="10" maxlength="10" />
Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]5" value="<?php echo $hours['5'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]5" value="<?php echo $minutes['5'];?>" size="10" maxlength="10" />
Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]6" value="<?php echo $hours['6'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]6" value="<?php echo $minutes['6'];?>" size="10" maxlength="10" />
Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]7" value="<?php echo $hours['7'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]7" value="<?php echo $minutes['7'];?>" size="10" maxlength="10" />
Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]8" value="<?php echo $hours['8'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]8" value="<?php echo $minutes['8'];?>" size="10" maxlength="10" />
Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]9" value="<?php echo $hours['9'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]9" value="<?php echo $minutes['9'];?>" size="10" maxlength="10" />
Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]10" value="<?php echo $hours['10'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]10" value="<?php echo $minutes['10'];?>" size="10" maxlength="10" />
Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]11" value="<?php echo $hours['11'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]11" value="<?php echo $minutes['11'];?>" size="10" maxlength="10" />
Mins</td>
  </tr>
  <tr>
    <td><input type="submit" name="submit" value="Add Time" /></td>
    <td><input value="<?php echo $totalhours;?>" type="int" size="10" maxlength="10" />
      Hrs
      <input type="int" value="<?php echo $totalminutes;?>" size="10" maxlength="10" />
      Mins</td>
  </tr>
</table>
<tr></tr>
</form> 
</body>
</html>

QuickOldCar Regular Member

QuickOldCar

Posted
Posted

I made a fix for certain conditions of a decimal in the function.

 

<?php
$hours = $_POST['hour'];
$minutes = $_POST['minute'];

if($_POST['hour'] != '' || $_POST['minute'] != '') {

function decHrMinSec($number){
if(strpos($number,".") !== false){
$number_explode = explode(".", $number);
$pos_zero = $number_explode['0'];
$round_pos_one = round($number_explode['1'],2);
$pos_one = substr($round_pos_one,0,2);

if(strlen($pos_one) == range(1,2) && strlen($pos_one) != '') {
$pos_one = $pos_one * 10;
}

$multiply_sixty = $pos_zero * 60;
//multiply_sixty = floor($pos_zero * 60);
$total_result = $pos_one + $multiply_sixty;
} else {
$total_result = $number * 60;
}
return $total_result;
}

function convertMinSec($number_value) {
$divided = floor($number_value / 60);
return $divided;
}

$sum_minutes = array_sum(array_filter($_POST['hour']));
$finalminutes = decHrMinSec($sum_minutes);
$addminutes = array_sum(array_filter($_POST['minute'])) + $finalminutes;
$totalhours = convertMinSec($addminutes);
$deduct_amount = 60 * $totalhours;
$allminutes=$addminutes - $deduct_amount;
$totalminutes = round($allminutes);

}
?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Flight Log Calculator</title>

</head>

<body>
<form action="" method="post" enctype="multipart/form-data">
  Pilots Logbook Calculator<br />
  
  <p>Put your times in the hours and minutes boxes then click the "Add Time" button to get your answer.
</p>

<table width="401" border="1" cellspacing="5" cellpadding="5">
  <tr>
    <td width="119"><input type="int" name="hour[]" value="<?php echo $hours['0'];?>"size="10" maxlength="10" /> 
      Hrs</td>
    <td width="241"><input type="int" name="minute[]" value="<?php echo $minutes['0'];?>" size="10" maxlength="10" /> 
      Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]" value="<?php echo $hours['1'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]" value="<?php echo $minutes['1'];?>" size="10" maxlength="10" /> 
      Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]2" value="<?php echo $hours['2'];?>" size="10" maxlength="10" />
    Hrs</td>
    <td><input type="int" name="minute[]2" value="<?php echo $minutes['2'];?>" size="10" maxlength="10" />
      Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]3" value="<?php echo $hours['3'];?>" size="10" maxlength="10" />
    Hrs</td>
    <td><input type="int" name="minute[]3" value="<?php echo $minutes['3'];?>" size="10" maxlength="10" />
      Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]4" value="<?php echo $hours['4'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]4" value="<?php echo $minutes['4'];?>" size="10" maxlength="10" />
Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]5" value="<?php echo $hours['5'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]5" value="<?php echo $minutes['5'];?>" size="10" maxlength="10" />
Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]6" value="<?php echo $hours['6'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]6" value="<?php echo $minutes['6'];?>" size="10" maxlength="10" />
Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]7" value="<?php echo $hours['7'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]7" value="<?php echo $minutes['7'];?>" size="10" maxlength="10" />
Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]8" value="<?php echo $hours['8'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]8" value="<?php echo $minutes['8'];?>" size="10" maxlength="10" />
Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]9" value="<?php echo $hours['9'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]9" value="<?php echo $minutes['9'];?>" size="10" maxlength="10" />
Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]10" value="<?php echo $hours['10'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]10" value="<?php echo $minutes['10'];?>" size="10" maxlength="10" />
Mins</td>
  </tr>
  <tr>
    <td><input type="int" name="hour[]11" value="<?php echo $hours['11'];?>" size="10" maxlength="10" />
      Hrs</td>
    <td><input type="int" name="minute[]11" value="<?php echo $minutes['11'];?>" size="10" maxlength="10" />
Mins</td>
  </tr>
  <tr>
    <td><input type="submit" name="submit" value="Add Time" /></td>
    <td><input value="<?php echo $totalhours;?>" type="int" size="10" maxlength="10" />
      Hrs
      <input type="int" value="<?php echo $totalminutes;?>" size="10" maxlength="10" />
      Mins</td>
  </tr>
</table>
<tr></tr>
</form> 
</body>
</html>

QuickOldCar Regular Member

QuickOldCar

Posted
Posted

Well when doing many big numbers using a combination of decimals and whole numbers it gets a little off due to the converting process of each.

 

I did manage to make one more accurate though.

Code is below on page.

http://get.blogdns.com/logged.php

 

I have another with a different method, then also another in the works using mostly explode.

(we'll see how that goes, or if I get frustrated enough... say "that's good enough already")

 

I'm going to convert them all down to seconds, then convert to minutes, then convert to hours.

Add the remainder minutes from hours back onto minutes.

 

QuickOldCar Regular Member

QuickOldCar

Posted
Posted

For this one...

http://get.blogdns.com/logged.php

 

.25 hours equals 15 minutes

.5 is 30 minutes

.75 is 45 minutes

and then everything in between

like .99 hours being 59 minutes

 

So basically it equates something like 1.7 hours as 1 hour and 42 minutes

 

 

The first one..  and at your site sees 1.7 hours as 1.7 hours and doesn't convert the .7 to minutes

This thread is more than a year old. Please don't revive it unless you have something important to add.

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