Simple unit converter help.

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zwy6art
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Posts: 1
Joined: Tue May 05, 2009 2:05 pm

Simple unit converter help.

Post by zwy6art »

Usually I ask a teacher or fellow student but since I'm at home, and bored, I'm asking you guys for help.
I have taken several beginning programming classes (c, c++, javascript, python, and php), understand how the logic works and such. But seem to always miss something that completely stops everything from working.

I need someone else to look it over really quick and point out any errors in syntax or logic that I missed.

Thanks


A very simple unit converter that converts metric to us. Just weight in oz/lbs and length in cm/in.

Requirements:
No need for labels such as oz, cm, in, lbs. Just place the number in the desired box and let the computer do the rest.

Desired results:
Place a number in metric length and have it convert to us length
same thing for weight,
Place a number in us length and have it convert to metric length
same thing for weight.
Aesthetics don't matter, I just need results and can then make it pretty later. I don't care where the output pop up, as long as it actually pops up :)

Questions:
If I could get an output, would not putting any values in the none used length/weight produce garbage results?
Will this work Metric -> US and Metric <- US?

p.s. This is an experiment project I'm doing for fun.

Code: Select all

 
<?php
//variables
$oz  ="";
$cm  ="";
$lbs ="";
$in  ="";
 
//calculations
oz / 16 = lbs;
centimeters * 0.3937 = inches;
 
?>
 
 
<div>
    <form action="?" method="post">
    --------------METRIC------------------------------------US----------<br />
    weight <input type="text" name="oz" size="4">
    length <input type="text" name="cm" size="4">
    
    <input type="submit" name="button" value="submit" />
    
    weight <input type="text" name="lbs" size="4">
    length <input type="text" name="in" size="4">
    </form>
    
    <? echo "oz" . 'oz(' . "lbs" . 'lbs)' . '-' . "cm" . 'cm(' . "in" . 'in)';?>
<div>
 
/edit - how to I get the color syntax in the code box to show to facilitate reading?
Last edited by Benjamin on Tue May 05, 2009 2:34 pm, edited 1 time in total.
Reason: Added [code=php]..[/code] tags.
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