How to prevent empty array values in serialization?

[Lionel]

I have six textboxes on a page.

For the db insert I do

PHP Code:

$preddata1 = serialize((is_array($_POST['predminutes1']) ? $_POST['predminutes1']: array())); 


and I insert $preddata1.

Results inserted in db are as below

PHP Code:

 a:6:{s:10:"0000000031";s:2:"25";s:10:"0000000032";s:0:"";s:10:"0000000033";s:2:"35";s:10:"0000000034";s:0:"";s:10:"0000000035";s:0:"";s:10:"0000000036";s:0:"";} 


As you can see the array only has 2 values "25" and "35".

How can I prevent the other empty values to be recorded?

[akanevsky]

Unset empty array items?

[Lionel]

how would i do that?

This is the full code

PHP Code:

if (!empty($_POST['predminutes1'])){
$keys1 = array_keys($_POST['predminutes1']);
if (!empty($_POST['predplayer1'])){
$keys2 = array_keys($_POST['predplayer1']); 
$diff = array_diff($keys1, $keys2);
if(count($diff) > 0) {
eval(print_standard_error('error_invalidpenalty1'));
}
}
} 


Of course this is getting messed up since I am getting all the empties in $keys1 which only has 2 values

Here is a print out of results. First line is $keys1 second is $keys2 and third is $diff

PHP Code:

Array ( [0] => 0000000031 [1] => 0000000032 [2] => 0000000033 [3] => 0000000034 [4] => 0000000035 [5] => 0000000036 ) 
Array ( [0] => 0000000034 [1] => 0000000036 ) 
Array ( [0] => 0000000031 [1] => 0000000032 [2] => 0000000033 [4] => 0000000035 ) 


All I want to say is that if the textbox($keys1) next to a checkbox($keys2) is empty (both have the same $playerid as key), eval the error.

[filburt1]

PHP Code:

foreach ($array as $key => $value)
{
    if (empty($value) and $value !== 0 and $value !== false)
    {
        unset($array[$key]);
    }
} 


[Lionel]

Thanks filburt1. Finally that is getting somewhere.