/**
* update changed setting with user provided value $input
* - if changed value fails error check, save it to $this->_input (to allow echoing later)
* - if changed value passes error check, set $this->_local to the new value
*
* @param mixed $input the new value
* @return boolean true if changed, false otherwise (incl. on error)
*/
function update($input)
{
// let parent do basic checks, value, not changed, etc.
$local = $this->_local;
if (!parent::update($input)) {
return false;
}
$this->_local = $local;
// see if the regex compiles and runs (we don't check for effectiveness)
$regex = $this->_delimiter . $input . $this->_delimiter . $this->_pregflags;
$lastError = error_get_last();
@preg_match($regex, 'testdata');
if (preg_last_error() != PREG_NO_ERROR || error_get_last() != $lastError) {
$this->_input = $input;
$this->_error = true;
return false;
}
$this->_local = $input;
return true;
}
function update($input)
{
$local = $this->_local;
$valid = parent::update($input);
if ($valid && !(is_null($this->_min) && is_null($this->_max))) {
$numeric_local = (int) eval('return ' . $this->_local . ';');
if (!is_null($this->_min) && $numeric_local < $this->_min || !is_null($this->_max) && $numeric_local > $this->_max) {
$this->_error = true;
$this->_input = $input;
$this->_local = $local;
$valid = false;
}
}
return $valid;
}
