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February 19, 2007 12:51 pm
- cplusplus
- Member
Both checkboxes are selected
The task is to have written ???You??™ve selected value 1??™ when you select the first value; ???You??™ve selected value 2??™ when you select the second one; and finally I??™d like to have ???You??™ve selected value 3??™ when I select the third value. But when you select 2 or 3 values at once it??™s undesirable to have something like ???You??™ve selected value 1??™, ???You??™ve selected value 2??™ and ???You??™ve selected value 3??™. It??™s better to have something like ???You??™ve selected value 1, value 2 and value 3??™ without duplicating of the common part ???You??™ve selected??™. Help, tell me how to do this? I cannot manage it on my own!
Here is my code
<form action="<?php echo $_SERVER['REQUEST_URI']?>" method="post">
<input type=checkbox name="chek[]" value="chek1"> value 1
<input type=checkbox name="chek[]" value="chek2"> value 2
<input type=checkbox name="chek[]" value="chek3"> value 3
<input type="submit" name="submit" value="You??™ve selected">
<? if($submit)
{$sel_chek=$_POST['chek'];
for($i=0;$i<count($sel_chek);$i++)
{
if ($sel_chek[$i]=='chek1'){echo "You??™ve selected value 1";}
else if ($sel_chek[$i]=='chek2'){echo " You??™ve selected value 2"; }
else if ($sel_chek[$i]=='chek3'){echo " You??™ve selected value 3";}
}
}?>
</form>
February 19, 2007 12:53 pm
- phppat
- Member
Re: Both checkboxes are selected
Frankly speaking, checkbox is a rather special thing. You??™d better look up in the HTML-manual before usage.
PHP monster
February 19, 2007 1:16 pm
- Keeper
- Member
Re: Both checkboxes are selected
var_dump($_POST);
Look what it contains and what these contents are equal to.
You shouldn??™t duplicate
{echo "You??™ve selected value 1";}And you do duplicate it.
February 19, 2007 1:19 pm
- cplusplus
- Member
Re: Both checkboxes are selected
Generally speaking, it??™s just a little example. Maybe it??™s not good enough but it??™s quite suitable to understand the matter of the case: how to evade such situation when by choosing last two checkboxes you have the common part written twice.
February 19, 2007 1:28 pm
- ABK
- Member
Re: Both checkboxes are selected
Imagine such situation when an alert like this should be shown not to the script but to you personally. Try to write carefully and clearly step-by-step this phrase in a way which seems to you to be the right one. What would you keep in the mind? On what reasons would your choice depend?
February 19, 2007 1:30 pm
- cplusplus
- Member
Re: Both checkboxes are selected
Well. The code should display following meanings
Selecting one of the checkboxes the alert should correspond to the items selected
???You??™ve selected value 1(2)(3)??™
Selecting the fist and the second (or the third) ones
???You??™ve selected value 1??™
???You??™ve selected value 2 (3)??™
Selecting the second and the third value
???You??™ve selected value 2 and value 3??™
Selecting all three values
???You??™ve selected value 1??™
???You??™ve selected value 2 and value 3??™
Something like that.
It means that alert for the first checkbox remains unchangeable.
February 19, 2007 1:33 pm
- bobbee
- Member
Re: Both checkboxes are selected
1) the code should display ???You??™ve selected??™ if you have really selected something i.e. massive $_POST['chek'] contains elements
if ( isset($_POST['check']) && sizeof($_POST['check']) ) {
echo "You??™ve selected ";
}
$sel_chek=$_POST['check'];2) as far as more than one value is possible you need a separator. The initial meaning of the separator is blank ??????. When at least one value selected is found the separator value is changed to ???,???
$sep = "";
$pos = strlen("check");
foreach($sel_check as $k => $v) {
echo $sep."value ".substr($v, $pos);
$sep = ", ";
}
February 19, 2007 1:36 pm
- cplusplus
- Member
Re: Both checkboxes are selected
And when the alert for the first checkbox doesn??™t begin with ???You??™ve selected??™ and you need it only for the second and the third ones. What should you do then?
February 19, 2007 1:40 pm
- Keeper
- Member
Re: Both checkboxes are selected
Maybe you should add
!isset($_POST['check'][1])
to the condition.
