{php}
  {php} tags allow php to be embedded directly into the template. They
  will not be escaped, regardless of the $php_handling setting. This
  is for advanced users only, not normally needed.
 
| Example 7-17. {php} tags | 
{php}// including a php script directly
 // from the template.
 include('/path/to/display_weather.php');
 {/php}
 | 
 | 
Technical Note: 
   To access PHP variables in {php} blocks you may need to use the PHP
   global
   keyword.
| Example 7-18. {php} tags with global | 
{php}global $foo, $bar;
 if($foo == $bar){
 // do something
 }
 {/php}
 | 
 | 
  See also
  $php_handling,
  {include_php},
  {include} and
  Componentized Templates.