How to loop and get serialized values from database with php - php

Question

I'm developing a pizza's restaurant ecommerce and now I'm trying to get the size (Familiar) and the ingredients (Pernil dol�, Bac�, Emmental) of a pizza that was ordered previously. The data I want to get (the italic values in this paragraph) becomes serialized from database:
a:4:{s:10:"attributes";a:2:{s:6:"Tamany";a:1:{i:3;s:8:"Familiar";}s:11:"Ingredients";a:3:{i:318;s:12:"Pernil dol�";i:270;s:5:"Bac�";i:294;s:8:"Emmental";}}s:9:"shippable";s:1:"0";s:4:"type";s:5:"pizza";s:6:"module";s:10:"uc_product";}array(4) { ["attributes"]=> array(2) { ["Tamany"]=> array(1) { [3]=> string(8) "Familiar" } ["Ingredients"]=> array(3) { [318]=> string(11) "Pernil dol�" [270]=> string(4) "Bac�" [294]=> string(8) "Emmental" } } ["shippable"]=> string(1) "0" ["type"]=> string(5) "pizza" ["module"]=> string(10) "uc_product" }
I discovered 'unserialized' php method and I tried this:
$attr = $row['data']; // data from database
$data = preg_replace('!s:(\d+):"(.*?)";!e', "'s:'.strlen('$2').':\"$2\";'", $attr); // I did this because I get some errors...
After I did that, I got this multidimensional array (a bit more human readable):
array(4) { ["attributes"]=> array(2) { ["Tamany"]=> array(1) { [3]=> string(8) "Familiar" } ["Ingredients"]=> array(3) { [318]=> string(11) "Pernil dol�" [270]=> string(4) "Bac�" [294]=> string(8) "Emmental" } } ["shippable"]=> string(1) "0" ["type"]=> string(5) "pizza" ["module"]=> string(10) "uc_product" }
Next step was try to loop the resulting data with a foreach loop, like the following:
foreach($data['attributes'] as $item)
{
print '<ul>';
foreach($item as $value)
{
print_r('<li>' . $value . '</li>');
}
print '</ul>';
}
I'm a php beginner PHP developer and I can't figure out how can I loop this array in order to get the values I need. I'm getting this error:
Warning: Invalid argument supplied for foreach() in /home/my_host/public_html/dev.mysite.com/inc/file.php on line 79
Can anybody tell me how I have to loop this array to get the data?
Any help will be very, very appreciated.
Best regards,

Answer 1

I created this example for you. First I declared an array which believe mimics the array you have to parse. Then I looped through and outputed the contents of the array.
<?php
$array = array(
0 => array(
'0' => 'John Doe',
'1' => 'john#example.com'
),
1 => array(
'0' => 'Jane Doe',
'1' => 'jane#example.com'
),
);
foreach ($array as $key => $value) {
$thisArray = $array[$key];
print_r('<ul>');
foreach ($thisArray as $key2 => $value){
print_r('<li>'.$thisArray[$key2].'</li>');
}
print_r('</ul>');
}
?>

Answer 2

Finally, and based on the answer of #Gregory Hart, I reached my goal. This is the final code that makes it possible in my particular case:
$data = $row['data'];
$attrib = preg_replace('!s:(\d+):"(.*?)";!e', "'s:'.strlen('$2').':\"$2\";'", $data);
$attr = unserialize($attrib);
foreach ($attr as $key => $value)
{
print_r('<ul>');
$thisArray = $attr[$key];
foreach ($thisArray as $key2 => $value2)
{
print_r('<li>' . $key2 . ': ');
$thisArray2 = $attr[$key][$key2];
foreach ($thisArray2 as $key3 => $value3)
{
if ($key2 == 'Tamany')
print_r('<span class="label label-warning">' . utf8_encode($thisArray2[$key3]) . '</span> ');
if ($key2 == 'Ingredients')
print_r('<span class="label label-success">' . utf8_encode($thisArray2[$key3]) . '</span> ');
if ($key2 == 'Salsa')
print_r('<span class="label label-primary">' . utf8_encode($thisArray2[$key3]) . '</span> ');
}
print '</li>';
}
print_r('</ul>');
}
Thanks for you help!

Answer 3

Try this logic:
$data_unserialize = unserialize($row->data);
foreach ($data_unserialize as $data_key => $data_value) {
if($data_key =='size')
{
$thisArray = $data_unserialize[$data_key ];
foreach ($thisArray as $key2 => $value2){
if($key2=='attributes')
{
switch ($value2)
{
case "Pernil dol�":
echo'Pernil dol �';
break;
case "Emmental":
echo'Emmental';
break;
default:
echo 'Nothing';
}
}
}
}
}
NB:- And remove the break; from switch statement to display all ingrediants.