else if problems

[darkfreaks]

okay so everything should work it echos right for underweight and normal weight but if i go over 30 percent it echos you are normal weight. when it should echo you are obese please consort a doctor.

 

 

 

<?php } else if ($total<18.50){	
echo "Your Body Mass Index is"; printf ('%01.2f',$total); echo "%"; echo "<b>You are Currently Underweight This is not healthy</b>";}
else if ($total>18.50){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Normal Weight, give yourself a pat on the back!</b>";}

else if ($total<25){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Normal Weight, give yourself a pat on the back!</b>";}

else if ($total>25){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Over Weight, Get to Exercizing on a Daily Basis!</b>";}

else if ($total<30){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Over Weight, Get to Exercizing on a Daily Basis!</b>";}

else if ($total>30){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Over Weight, Get to Exercizing on a Daily Basis! Consult a Doctor ASAP!</b>";}
?>

 

[KrisNz]

Well if your $total is 100 the first condition thats going to be met is that $total is > than 18.5. The other conditions wont get a look in. You want your conditions to be greater than a and less than b. Also doing this as a switch{} would be a bit cleaner.

[jd2007]

use switch....who can read that ?

[darkfreaks]

nevermind that echos everything gah!

[jbingman]

Your problem is a math error.

Say you run the number 100 through the statements. it will run through the first 2 but on the 3rd (>25) it returns true. So if the number is over 25 AND 30 it will run through the first one on the list.

You would need to add a domain such as 25<x<30 (number is greater than 25 but less than 30) then x<30

<?php } else if ($total<18.50){	
echo "Your Body Mass Index is"; printf ('%01.2f',$total); echo "%"; echo "<b>You are Currently Underweight This is not healthy</b>";}
else if ($total>18.50 && $total<25){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Normal Weight, give yourself a pat on the back!</b>";}

else if ($total<25){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Normal Weight, give yourself a pat on the back!</b>";}

else if ($total>25 && $total<30){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Over Weight, Get to Exercizing on a Daily Basis!</b>";}

else if ($total<30){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Over Weight, Get to Exercizing on a Daily Basis!</b>";}

else if ($total>30){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Over Weight, Get to Exercizing on a Daily Basis! Consult a Doctor ASAP!</b>";}
?>

I hope that works and makes sense

[darkfreaks]

indeed i did have a few math errors but i think it is only looping through the first statement then it doesnt return anything else.

[jbingman]

Yeah so try to play with the domains as I did above to only include a set of numbers that only that else if statement contains.

[darkfreaks]

my current code is

 

<?php } else if ($total<18.50){	
echo "Your Body Mass Index is"; printf ('%01.2f',$total); echo "%"; echo "<b>You are Currently Underweight This is not healthy</b>";}
else if ($total>18.50){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Normal Weight, give yourself a pat on the back!</b>";}

else if ($total<25||$total>25){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Normal Weight, give yourself a pat on the back!</b>";}

else if ($total<30){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Over Weight, Get to Exercizing on a Daily Basis!</b>";}

else if ($total>30){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Over Weight, Get to Exercizing on a Daily Basis! Consult a Doctor ASAP!</b>";}
?>

[darkfreaks]

oh i see why its flawed

[jbingman]

Yeah you got the idea.

[darkfreaks]

gah i fixed that problem am i the only one that is thinking that only the first else if is returning true?

[darkfreaks]

okay so i fixed up the code using switch but im getting erros can someone fix them plz?

 

<?php

switch ($total) {

case $total>18.50:

    echo "Your Body Mass Index is"; printf ('%01.2f',$total);

echo "%"; echo "<b>You are Normal Weight, give yourself a pat on the back!</b>";

    break;

case $total<18.50:

    echo "Your Body Mass Index is"; printf ('%01.2f',$total); echo "%"; echo "<b>You are Currently Underweight This is not healthy</b>";

    break;

case $total<25:

    echo Your Body Mass Index is"; printf ('%01.2f',$total);

echo "%"; echo "<b>You are Normal Weight, give yourself a pat on the back!</b>";

    break;

 

case $total>25:

echo "Your Body Mass Index is"; printf ('%01.2f',$total);

echo "%"; echo "<b>You are Over Weight, Get to Exercizing on a Daily Basis!</b>";

break;

case $total>30:

echo "Your Body Mass Index is"; printf ('%01.2f',$total);

echo "%"; echo "<b>You are Over Weight, Get to Exercizing on a Daily Basis! Consult a Doctor ASAP!</b>";

break;

?>

 

 

 

[darkfreaks]

anyone?

[Ninjakreborn]

<?php
switch ($total) {
case $total>18.50:
    echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "You are Normal Weight, give yourself a pat on the back!";
    break;
case $total<18.50:
    echo "Your Body Mass Index is"; printf ('%01.2f',$total); echo "%"; echo "You are Currently Underweight This is not healthy";
    break;
case $total<25:
    echo Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "You are Normal Weight, give yourself a pat on the back!";
    break;

case $total>25:
echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "You are Over Weight, Get to Exercizing on a Daily Basis!";
break;
case $total>30:
echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "You are Over Weight, Get to Exercizing on a Daily Basis! Consult a Doctor ASAP!";
break;
}
?>

Try that, if not paste your EXACT errors.

[darkfreaks]

ok small syntax error but works now only problem is i get

 

Your Body Mass Index is0.00%You are Normal Weight, give yourself a pat on the back!

 

and it shouldnt echo there is nothing filled in yet

[Ninjakreborn]

paste the syntax errors sent to the browser, or the output.

Not the code..

[darkfreaks]

Your Body Mass Index is0.00%You are Normal Weight, give yourself a pat on the back!

 

need to know how to make that stop echoing if nothing is filled in.

 

also shouldt it be saying you are under weight since it equals nothing?

[jbingman]

make a default value in the switch statement for 0.

[jbingman]

Your Body Mass Index is0.00%You are Normal Weight, give yourself a pat on the back!

 

need to know how to make that stop echoing if nothing is filled in.

 

also shouldt it be saying you are under weight since it equals nothing?

go herehttp://www.w3schools.com/php/php_switch.asp it will show you how to use the default action in the switch statement and explain it.

 

[darkfreaks]

okay set the default value so it doesnt echo at all.

 

but now im still getting  your BMI is 29.9 percent your a normal weight when its sposed to echo your overweight please exercise should i get rid of the if else statements and leave the switch part?

[jbingman]

Yes, just keep the switch statement.

[darkfreaks]

yeah i noticed it appeared blank so i put it back perhaps my statements are more flawed than i originally thought?

 

<?php

} else if ($total<18.50){	
echo "Your Body Mass Index is"; printf ('%01.2f',$total); echo "%"; echo "<b>You are Currently Underweight This is not healthy</b>";}
else if ($total>18.50){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Normal Weight, give yourself a pat on the back!</b>";}

else if ($total<25){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Normal Weight, give yourself a pat on the back!</b>";}
else if ($total>25){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Over Weight, Get to Exercizing on a Daily Basis!</b>";}

else if ($total<30){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Over Weight, Get to Exercizing on a Daily Basis!</b>";}

else if ($total>30){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Over Weight, Get to Exercizing on a Daily Basis! Consult a Doctor ASAP!</b>";}


switch ($total) {

case $total=0:
    break;

case $total>18.50:
    echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "You are Normal Weight, give yourself a pat on the back!";
    break;
case $total<18.50:
    echo "Your Body Mass Index is"; printf ('%01.2f',$total); echo "%"; echo "You are Currently Underweight This is not healthy";
    break;
case $total<25:
    echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "You are Normal Weight, give yourself a pat on the back!";
    break;

case $total>25:
echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "You are Over Weight, Get to Exercizing on a Daily Basis!";
break;
case $total>30:
echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "You are Over Weight, Get to Exercizing on a Daily Basis! Consult a Doctor ASAP!";
break;
}



?>

[teng84]

<?php 
if(i dont know where to start condition)//just put here yours
} 
else if ($total<18.50){	
echo "Your Body Mass Index is"; 
printf ('%01.2f',$total);
	echo "%";
	echo "<b>You are Currently Underweight This is not healthy</b>";
}
else if ($total<25){
echo "Your Body Mass Index is"; 
printf ('%01.2f',$total);
echo "%"; 	
echo "<b>You are Normal Weight, give yourself a pat on the back!</b>";
}

else if ($total<30){
echo "Your Body Mass Index is"; 
printf ('%01.2f',$total);
echo "%"; 
echo "<b>You are Normal Weight, give yourself a pat on the back!</b>";
}



else{
echo "Your Body Mass Index is"; 
printf ('%01.2f',$total);
echo "%"; 
echo "<b>You are Over Weight, Get to Exercizing on a Daily Basis! Consult a Doctor ASAP!</b>";
}
?>

[darkfreaks]

ok my problem is  the following statement wont work i have 5 if else statements that work if i change them to if and if else statements it echos everything upon submit instead of doing the math and figuring otu what to echo.

 

 

the last 4 statements that dont work right:

 

<?php

else if ($total<25){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Normal Weight, give yourself a pat on the back!</b>";}
else if ($total>25){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Over Weight, Get to Exercizing on a Daily Basis!</b>";}

else if ($total<30){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Over Weight, Get to Exercizing on a Daily Basis!</b>";}

else if ($total>30){echo "Your Body Mass Index is"; printf ('%01.2f',$total);
echo "%"; echo "<b>You are Over Weight, Get to Exercizing on a Daily Basis! Consult a Doctor ASAP!</b>";}?>

[darkfreaks]

anyone got any solutions for all my else ifs? if i change it to if() elseif() elseif() it echos everything upon submit?