Convert the value of an object into a php variable

Hi,

I try to write the value of a html tag to a php variable. I have this code but it won't work as I thought. Tha value of {tag1} is 25.

$x = new stdClass;
$x->foo = "{tag1}";
$foo = $x->foo;
ob_start();
$v = var_export($foo, true);
echo $v;
$stdClass = ob_get_contents();
ob_end_clean();
$age = $stdClass;


When checking the output, the name and not the value is written.

echo $age[0] <------ givs ' and not 2
echo $age[1] <------ givs { and not 5

How can I get the $age to contain the value 25?

Thanks

 

replace $x->foo = "{tag1}"; with $x->foo = 25;

 

{tag1} is the html hook I use in the template to extract a field from a database so I cannot write anything else than {tag1}

I want to use the int/number from database in a calculation and since {tag1} is treated as an object I has to get the value into another variable.

 

{php}
$variable = "$this->get_template_vars('tag1')";
{/php}

PHP: