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<?php
/**
* This trait manages all variable assignments to the controller and templates.
*
* @author Jan-Hendrik Willms <tleilax+studip@gmail.com>
* @license GPL2 or any later version
* @since Stud.IP 5.2
*/
trait StudipControllerPropertiesTrait
{
/**
* Stores the assigned variables.
* @var array
*/
protected $_template_variables = [];
/**
* Returns whether a variable is set.
*
* @param string $offset
* @return bool
*/
public function __isset(string $offset): bool
{
return isset($this->_template_variables[$offset]);
}
/**
* Stores a variable.
*
* @param string $offset
* @param mixed $value
*/
public function __set(string $offset, $value): void
{
$this->_template_variables[$offset] = $value;
}
/**
* Returns a previously set variable.
*
* @param string $offset
* @return mixed
*/
public function &__get(string $offset)
{
if (!isset($this->_template_variables[$offset])) {
$this->_template_variables[$offset] = null;
}
return $this->_template_variables[$offset];
}
/**
* Unsets a previously set variable
*
* @param string $offset
*/
public function __unset(string $offset): void
{
unset($this->_template_variables[$offset]);
}
public function get_assigned_variables(): array
{
$variables = $this->_template_variables;
$variables['controller'] = $this;
return $variables;
}
}
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