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POST/GET variables

Discuss POST/GET variables in the General Programming Help forum on Dev Articles.
POST/GET variables General Programming Help forum discussing Perl, Python, Scripting and/or any languages that do not fit into any of the categories above.

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  #1  
Old January 15th, 2003, 06:24 PM
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POST/GET variables
I was wondering what the best way to deal with checkboxes was... I think i've figured out a way that works, but to be honest i'm not pleased. I'm hoping there was a better way.

The checkbox is a response to a yes/no question (hence Y/N).

Here's the code I've used:

PHP Code:
 $check1 = !empty($HTTP_POST_VARS['check1']) ? $HTTP_POST_VARS['check1'] : "";

if($check1=="checkbox") {
    $check1 = "Y";
} else {
    $check1 = "N";
}
echo $check1; 
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  #2  
Old January 15th, 2003, 07:16 PM
jpenn jpenn is offline
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Well, any way you feel is best and can understand better is always the best way. Me, I would do this in this particular scenerio ->
PHP Code:
/*************************************
Initialize Script Variables
*************************************/
$q_one = ( bool ) false;
$q_two = ( bool ) false;
$q_thr = ( bool ) false;
$q_fou = ( bool ) false;
$q_fiv = ( bool ) false;
$q_six = ( bool ) false;
$q_sev = ( bool ) false;
/*************************************
Check Incoming Answers
*************************************/
if ( !empty( $_POST['ques_one'] ) ) $q_one = ( bool ) true;
if ( !empty( $_POST['ques_two'] ) ) $q_two = ( bool ) true;
if ( !empty( $_POST['ques_thr'] ) ) $q_thr = ( bool ) true;
if ( !empty( $_POST['ques_fou'] ) ) $q_fou = ( bool ) true;
if ( !empty( $_POST['ques_fiv'] ) ) $q_fiv = ( bool ) true;
if ( !empty( $_POST['ques_six'] ) ) $q_six = ( bool ) true;
if ( !empty( $_POST['ques_sev'] ) ) $q_sev = ( bool ) true; 

Now, the above would obviously be for seven questions. On my form or the questionaire, my checkboxes would be set as '0' for no and '1' for yes.

empty() returns true or empty if the value is '( int ) 0' - so if the value of the $_POST['var'] comes in with an empty() value (or 0), the script would make no changes to the initialized variable as it is already set at '0', or false. If the value comes in as !empty() or '1', I set the variable to true. Now, after that the checking is trivial ->
PHP Code:
if ( $q_one ) {
echo( 'You answered yes to Q1' );
} else {
echo( 'You answered no to Q1' );
} 
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  #3  
Old January 15th, 2003, 07:58 PM
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thanks, that's pretty much exactly what i was looking for =)

it also answers a couple more questions that i never asked

much appreciation, thanks!
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  #4  
Old January 16th, 2003, 08:26 PM
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Use it as an array
<form>
<input type="checkbox" name="check[]" value="1">1
<input type="checkbox" name="check[]" value="2">2
<input type="checkbox" name="check[]" value="3">3
<input type="submit" name="submit">
</form>

the php code:

for($i = 0; $i < sizeof($check); $i++) {
print $check[$i];
}
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