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Easy how to loop thru $_POST array?

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  #1  
Old February 21st, 2003, 04:09 AM
johnn johnn is offline
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Easy how to loop thru $_POST array?
Hi,

Suppose I have these $_POST variables after submit a form
$_POST['x']
$_POST['var1']
$_POST['var2']
$_POST['var3']
$_POST['var4']
$_POST['a']

Is there a simple way to loop thru to check only
$_POST['var1']
$_POST['var2']
$_POST['var3']
$_POST['var4']

to see if any of them is empty?
Thanks,
John
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  #2  
Old February 21st, 2003, 06:46 AM
ZaireWeb ZaireWeb is offline
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PHP Code:
 $toCheck = array( 'var1', 'var2', 'var3', 'var4' );
$count    = count( $toCheck );
for( $i = 0; $i < $count; $i++ )
{
    if( $_POST[$toCheck[$i]] == '' )
    {
        echo $toCheck[$i] . ' was left empty';
    }
} 


You could also use foreach, but I like for better ;P
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  #3  
Old February 21st, 2003, 07:47 AM
miraclemaker miraclemaker is offline
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PHP Code:
 $toCheck = array( 'var1', 'var2', 'var3', 'var4' );
foreach( $_POST as $postvar )
{
****if( in_array($postvar,$toCheck ) && $postvar == "" )
********echo $toCheck[$i] . ' was left empty';
} 
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