| protected _toBoolean ( mixed $value ) : boolean | ||
| $value | mixed | A value of unknown type to be cast to boolean. Numeric values not equal to zero evaluate to `true`, otherwise `false`. String values equal to `'true'`, `'t'` or `'T'` evaluate to `true`, all others to `false`. In all other cases, uses PHP's default casting. |
| return | boolean | Returns a boolean representation of `$value`, based on the comparison rules specified above. Database adapters may override this method if boolean type coercion is required and falls outside the rules defined. |
protected function _toBoolean($value)
{
if (is_bool($value)) {
return $value;
}
if (is_int($value) || is_float($value)) {
return $value !== 0;
}
if (is_string($value)) {
return $value === 't' || $value === 'T' || $value === 'true';
}
return (bool) $value;
}