original_string: public function allowPhpFunction($func)
  	{
  		if (is_array($func))
  			foreach ($func as $fname)
  				$this->allowedPhpFunctions[strtolower($fname)] = true;
  		else
  			$this->allowedPhpFunctions[strtolower($func)] = true;
  	}
code: public function allowPhpFunction($func)
  	{
  		if (is_array($func))
  			foreach ($func as $fname)
  				$this->allowedPhpFunctions[strtolower($fname)] = true;
  		else
  			$this->allowedPhpFunctions[strtolower($func)] = true;
  	}
code_tokens: public function allowPhpFunction ( $ func ) { if ( is_array ( $ func ) ) foreach ( $ func as $ fname ) $ this -> allowedPhpFunctions [ strtolower ( $ fname ) ] = true ; else $ this -> allowedPhpFunctions [ strtolower ( $ func ) ] = true ; }
docstring: adds a php function to the allowed list
  
  @param mixed $func function name or array of function names
docstring_tokens: adds a php function to the allowed list