Problem with little if-selection. It only takes the 1. value?

Gmans

Hi I want my $amount var. to be updated by the 2 radio selections, but it always only take the first value.
What can be wrong?
Thanks

$amount=$t["monthly_cost"];
$selected_radio = $_POST['ans'];
if ($selected_radio='1') 
{
$amount=$t["monthly_cost"] * 2;
}
else if($selected_radio='2')
{
$amount=$t["monthly_cost"] * 3;
} 

echo "<form action='".$t["sp_url"]."' method='post'>";
echo " Price 1 1 <input type='radio' name='ans' value='1' /><br />";
echo " Price 2 2 <input type='radio' name='ans' value='2' /><br />";
echo "<input type='submit' name='submit1' value='SUBMIT'/>
echo "</form>";

bradgrafelman

When posting PHP code, please use the board's [noparse]

..

[/noparse] bbcode tags as they make your code much easier to read and analyze. You might also consider doing some indenting.

Your problem is caused by the use of the wrong operator in your if() statements. The single equal sign '=' is the assignment operator, which means you're actually changing the values of the variables in the if() conditional. Instead, you should be using a comparison operator, such as the double equal sign '=='. More info on comparison operators found here: [man]operators.comparison[/man].

Gmans

OK
I have now the 2 '==" in my if selection, but it still only give me the initial value ???

bradgrafelman

Can you show us a fresh copy of your code now?

Gmans

Hi I will do that at once. But Im not sure how to use the board's [noparse]

..

[/noparse] bbcode, so I will think it will get some comments from you. But here it is:

$amount=$t["monthly_cost"]; 
$selected_radio = $_POST['ans']; 
if ($selected_radio=='1') 
{ 
$amount=$t["monthly_cost"] * 2; 
} 
else if($selected_radio=='2') 
{ 
$amount=$t["monthly_cost"] * 3; 
} 

echo "<form action='".$t["sp_url"]."' method='post'>"; 
echo " Price 1 <input type='radio' name='ans' value='1' /><br />"; 
echo " Price 2 <input type='radio' name='ans' value='2' /><br />"; 
echo "<input type='submit' name='submit1' value='SUBMIT'/> 
echo "</form>";

It still only takes the first value ($amount=$t["monthly_cost"] * 2; ). like it never know that I have maked a choise or maked a submit???

bradgrafelman

Gmans;10967931 wrote:
Hi I will do that at once. But Im not sure how to use the board's [noparse]
..
[/noparse] bbcode

See this page in the FAQ section of the board.

As for your issue, try doing a [man]var_dump/man on $_POST['ans'] to view its value. Try submitting the form with the second price radio button selected and post the output for us to see.

Gmans

The form activate a new page. No matter what I do the 28500 is always the result on the next page from this.

var_dump($amount); (if I put it here an refress the page it come out with: string(5) "28500"

$amount=$t["monthly_cost"];
$selected_radio = $_POST['ans'];

var_dump($selected_radio); (if I put this in here an refress the page it come out with: NULL
if ($selected_radio=='1')
{
$amount=$t["monthly_cost"] 2;
var_dump($amount); (if I put this in here an refress the page noting comes out
}
else if($selected_radio=='2')
{
$amount=$t["monthly_cost"] 3;
var_dump($amount); (if I put this in here an refress the page noting comes out
}

echo "<form action='".$t["sp_url"]."' method='post'>";
echo " Price 1 <input type='radio' name='ans' value='1' /><br />";
echo " Price 2 <input type='radio' name='ans' value='2' /><br />";
echo "<input type='submit' name='submit1' value='SUBMIT'/>
echo "</form>";

Gmans

Hi did my last information with var_dump help you to help me?😕

Gmans

When I submit this the monthly cost is: 570 (2 * monthly cost)
I have make my changes BOLD

$amount=$t["monthly_cost"]; // monthly cost are 285
$selected_radio = $_POST['ans'];
if($selected_radio='1')
{
$amount=$t["monthly_cost"] 2;
}
else if($selected_radio='2')
{
$amount=$t["monthly_cost"] 3;
}

When I submit this the monthly cost ist only 285
$amount=$t["monthly_cost"]; // monthly cost are 285
$selected_radio = $_POST['ans'];
if($selected_radio=='1')
{
$amount=$t["monthly_cost"] 2;
}
else if($selected_radio=='2')
{
$amount=$t["monthly_cost"] 3;
}

And when I submit this the monthly cost ist only 855 (3 monthly cost)
$amount=$t["monthly_cost"]; // monthly cost are 285
$selected_radio = $_POST['ans'];
if($selected_radio='1')
{
$amount=$t["monthly_cost"] 2;
}
if/B
{
$amount=$t["monthly_cost"] * 3;
}

I hope that can give you an idea what is wrong whit my if statement?

toxic_brain

it still has some lines with = instead of ==. can u post the latest code within php tags?

Mrpatty

if you are only trying to get the values of each radio then this will work. Then add in anything you need to make what ever you are trying make work. But this script will get and echo out the values from the selected radio.

<form id="form1" name="form1" method="post" action="">
  <p>Radio 1:
    <input type="radio" name="radio1" value="1" />
  </p>
  <p>Radio 2: 
    <input type="radio" name="radio2" value="2" />
  </p>
  <p>
    <input type="submit" name="submit" id="submit" value="Submit" />
    <br />
  </p>
</form>
<?php
$submit=$_POST['submit'];
$radio1=$_POST['radio1'];
$radio2=$_POST['radio2'];

if($submit)
{
	if($radio1)
	{
	$choice=$radio1;
	echo $choice;
	}elseif($radio2)
		{
			$choice=$radio2;
			echo $choice;
		}
}

?>

Mrpatty

Mrpatty;10968558 wrote:
if you are only trying to get the values of each radio then this will work. Then add in anything you need to make what ever you are trying make work. But this script will get and echo out the values from the selected radio.
<form id="form1" name="form1" method="post" action="">
  <p>Radio 1:
    <input type="radio" name="radio1" value="1" />
  </p>
  <p>Radio 2: 
    <input type="radio" name="radio2" value="2" />
  </p>
  <p>
    <input type="submit" name="submit" id="submit" value="Submit" />
    <br />
  </p>
</form>
<?php
$submit=$_POST['submit'];
$radio1=$_POST['radio1'];
$radio2=$_POST['radio2'];

if($submit)
{
	if($radio1)
	{
	$choice=$radio1;
	echo $choice;
	}elseif($radio2)
		{
			$choice=$radio2;
			echo $choice;
		}
}

?>

HOPE THIS HELPED!