Need Help with PHP Code

General PHP Help
#1

Hi,

I was wondering if someone can help me out with the script below as i am a newbie and have spend several days trying to figure out . My issue is that i can’t seem to find where i would be able to change the text orientation and size of the calculate result as right now it always display the result to left side of screen. Any would be really appreciated. Thanks

Below is the code and a link to the screenshot.

[php]

<?php session_start(); $firsttext="Your Body Mass Index (BMI) is %%BMI%%"; ?> .calculator_div { font-size:11px; font-family:verdana, arial, sans-serif; border:none; padding:25px; margin-top:0px; margin-bottom:0px; margin-right:220px; margin-left:220px; width:400px; } .calculator_div label { display:block; float:left; width:300px; } <?php if(!empty($_POST['calculator_ok'])) { // set vars in session foreach($_POST as $key=>$var) { $_SESSION['bmi_calc_'.$key]=$var; } if($_POST['system']=='english') { $height=$_POST['height_ft_en']*12+$_POST['height_in_en']; $bmi=($_POST['weight_en']*703) / ($height*$height); } else { $height=$_POST['height_met']/100; $bmi=$_POST['weight_met'] / round(($height*$height),2); } $bmi=number_format($bmi,1,".",""); // prepare message for the user if($bmi<=18.5) { $bmimsg="Underweight"; } if($bmi>18.5 and $bmi<=24.9) { $bmimsg="Normal"; } if($bmi>=25 and $bmi<=29.9) { $bmimsg="Overweight"; } if($bmi>=30) { $bmimsg="Obese"; } // what is the weight range? if($bmimsg!='Normal') { if($_POST['system']=='english') { $lowerlimit=number_format(( 18.5 * ($height*$height) ) / 703); $lowerlimitkg=number_format($lowerlimit*0.453,1,".",""); $upperlimit=number_format(( 24.9 * ($height*$height) ) / 703); $upperlimitkg=number_format($upperlimit*0.453,1,".",""); } else { $lowerlimit=number_format( 18.5 * ($height*$height) * 2.204 ); $lowerlimitkg=number_format(18.5 * ($height*$height),1,".",""); $upperlimit=number_format( 24.9 * ($height*$height) * 2.204 ); $upperlimitkg=number_format(24.9 * ($height*$height),1,".",""); } } //prepare texts $firsttext=str_replace("%%BMI%%",$bmi,$firsttext); $firsttext=str_replace("%%BMIMSG%%",$bmimsg,$firsttext); $lowertext=str_replace("%%LOWERLIMIT%%",$lowerlimit,$lowertext); $lowertext=str_replace("%%LOWERLIMITKG%%",$lowerlimitkg,$lowertext); $lowertext=str_replace("%%UPPERLIMIT%%",$upperlimit,$lowertext); $lowertext=str_replace("%%UPPERLIMITKG%%",$upperlimitkg,$lowertext); $uppertext=str_replace("%%LOWERLIMIT%%",$lowerlimit,$uppertext); $uppertext=str_replace("%%LOWERLIMITKG%%",$lowerlimitkg,$uppertext); $uppertext=str_replace("%%UPPERLIMIT%%",$upperlimit,$uppertext); $uppertext=str_replace("%%UPPERLIMITKG%%",$upperlimitkg,$uppertext); } ?> 
<form method="post">
<div class="calculator_div">
    <div><input type="radio" value="english" name="system" <?php if($_SESSION['bmi_calc_system']=="" or $_SESSION['bmi_calc_system']=='english') echo "checked='true'";?> onclick="changeSystem('english');"> Imperial
    &nbsp;
    <input type="radio" value="metric" name="system" <?php if($_SESSION['bmi_calc_system']!='' and $_SESSION['bmi_calc_system']=='metric') echo "checked='true'";?> onclick="changeSystem('metric');"> Metric
	</div>
    <div><label>Your Weight:</label>
        <span id="englishWeight" style="display:<?php echo ($_SESSION['bmi_calc_system']=='' or $_SESSION['bmi_calc_system']=='english')?'block':'none'?>;"><input type="text" name="weight_en" size="6" value="<?php echo !empty($_SESSION['bmi_calc_weight_en'])?$_SESSION['bmi_calc_weight_en']:""?>"> lbs</span>
        <span id="metricWeight" style="display:<?php echo (($_SESSION['bmi_calc_system']=="" or $_SESSION['bmi_calc_system']=='english'))?'none':'block'?>;"><input type="text" name="weight_met" size="6" value="<?php echo !empty($_SESSION['bmi_calc_weight_met'])?$_SESSION['bmi_calc_weight_met']:""?>"> kg</span>
    </div>	 
	<div><label>Your Height:</label>
        <span id="englishHeight" style="display:<?php echo (($_SESSION['bmi_calc_system']=='' or $_SESSION['bmi_calc_system']=='english'))?'block':'none'?>;"><input type="text" size="6" name="height_ft_en" value="<?php echo !empty($_SESSION['bmi_calc_height_ft_en'])?$_SESSION['bmi_calc_height_ft_en']:""?>"> ft
        &nbsp; <input type="text" size="6" name="height_in_en" value="<?php echo ($_SESSION['bmi_calc_height_in_en']!='')?$_SESSION['bmi_calc_height_in_en']:""?>"> in</span>
        <span id="metricHeight" style="display:<?php echo ($_SESSION['bmi_calc_system']=='' or $_SESSION['bmi_calc_system']=='english')?'none':'block'?>;">
        <input type="text" name="height_met" size="6" value="<?php echo ($_SESSION['bmi_calc_height_met']!='')?$_SESSION['bmi_calc_height_met']:""?>"> cm
        </span>
    </div>
	<div align="left">
    	<input type="hidden" name="calculator_ok" value="ok">
    	<input type="submit" value="Calculate Your BMI">
	</div>
</div>    
</form>
<?php if(!empty($_POST['calculator_ok'])):?>

<?=$firsttext?>

<?php switch($bmimsg) { case 'Normal': // you can echo here if you want for normal weight people break; 
   case 'Underweight':       		
   		echo $lowertext;
   break;
                                     	
   default:
   		echo $uppertext;
    break;                              
  }
  ?>
  
  <p align="center"><a href="http://<?=$_SERVER['HTTP_HOST'];?><?=$_SERVER['REQUEST_URI']?>">Calculate again</a></p>
<?php endif;?>

[/php]

#2

Hi,

you define parts of ‘calculator_div’ twice. the last definition holds.
It contains a ‘float:left;’.
Merge it together, remove double entries and if you want, change the ‘font-size’.

This is a great place to learn about HTML, CSS, Javascript and PHP.
http://www.w3schools.com/css/css_float.asp

Good luck. ;D
O.

#3

Try the below code 8) :
[php]

<?php session_start(); $firsttext="Your Body Mass Index (BMI) is %%BMI%%"; ?> .calculator_div { font-size:11px; font-family:verdana, arial, sans-serif; border:none; padding:25px; margin-top:0px; margin-bottom:0px; margin-right:220px; margin-left:220px; width:400px; } .calculator_div label { display:block; float:left; width:300px; } <?php if(!empty($_POST['calculator_ok'])) { // set vars in session foreach($_POST as $key=>$var) { $_SESSION['bmi_calc_'.$key]=$var; } if($_POST['system']=='english') { $height=$_POST['height_ft_en']*12+$_POST['height_in_en']; $bmi=($_POST['weight_en']*703) / ($height*$height); } else { $height=$_POST['height_met']/100; $bmi=$_POST['weight_met'] / round(($height*$height),2); } $bmi=number_format($bmi,1,".",""); // prepare message for the user if($bmi<=18.5) { $bmimsg="Underweight"; } if($bmi>18.5 and $bmi<=24.9) { $bmimsg="Normal"; } if($bmi>=25 and $bmi<=29.9) { $bmimsg="Overweight"; } if($bmi>=30) { $bmimsg="Obese"; } // what is the weight range? if($bmimsg!='Normal') { if($_POST['system']=='english') { $lowerlimit=number_format(( 18.5 * ($height*$height) ) / 703); $lowerlimitkg=number_format($lowerlimit*0.453,1,".",""); $upperlimit=number_format(( 24.9 * ($height*$height) ) / 703); $upperlimitkg=number_format($upperlimit*0.453,1,".",""); } else { $lowerlimit=number_format( 18.5 * ($height*$height) * 2.204 ); $lowerlimitkg=number_format(18.5 * ($height*$height),1,".",""); $upperlimit=number_format( 24.9 * ($height*$height) * 2.204 ); $upperlimitkg=number_format(24.9 * ($height*$height),1,".",""); } } //prepare texts $firsttext=str_replace("%%BMI%%",$bmi,$firsttext); $firsttext=str_replace("%%BMIMSG%%",$bmimsg,$firsttext); $lowertext=str_replace("%%LOWERLIMIT%%",$lowerlimit,$lowertext); $lowertext=str_replace("%%LOWERLIMITKG%%",$lowerlimitkg,$lowertext); $lowertext=str_replace("%%UPPERLIMIT%%",$upperlimit,$lowertext); $lowertext=str_replace("%%UPPERLIMITKG%%",$upperlimitkg,$lowertext); $uppertext=str_replace("%%LOWERLIMIT%%",$lowerlimit,$uppertext); $uppertext=str_replace("%%LOWERLIMITKG%%",$lowerlimitkg,$uppertext); $uppertext=str_replace("%%UPPERLIMIT%%",$upperlimit,$uppertext); $uppertext=str_replace("%%UPPERLIMITKG%%",$upperlimitkg,$uppertext); } ?>
onclick="changeSystem('english');"> Imperial   onclick="changeSystem('metric');"> Metric
Your Weight: "> lbs ;">"> kg
Your Height: "> ft   "> in "> cm
<?php if(!empty($_POST['calculator_ok'])):?>

<?=$firsttext?>

<?php switch($bmimsg) { case 'Normal': // you can echo here if you want for normal weight people break; case 'Underweight': echo $lowertext; break; default: echo $uppertext; break; } ?>

Calculate again

<?php endif;?> [/php]
#4

sajan and Ojoshiro,

Thanks for both suggestion and the code. I will try both of the suggestions and will let you know if i was able to fix my issue.

#5

Sajan,

That worked perfectly and if possible can you point out the way that you fixed that as i would like to know what you change on the coding to make the change. Thanks again for your help.

#6

I din’t make any changes to the code except the Closing of following

s.
Just look at the code to find the closing of following div’s and compare that with your code.

[code]

[/code]

Reply to me if you have any doubt.

#7

Got it thanks for letting me know and also for helping me out with the coding.

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