CodeIgniter的表單驗證greater_than_equal_to不工作

Question

我有這樣的代碼

$this->form_validation->set_rules('MinimumSalary', 'Minimum Salary', 'trim|required|min_length[1]|max_length[20]|numeric|greater_than_equal_to[0]'); 
$this->form_validation->set_rules('MaximumSalary', 'Maximum Salary', 'trim|required|min_length[1]|max_length[20]|numeric|greater_than_equal_to[MinimumSalary]'); 

，但它總是拋出，當我進入MinimumSalary = 100和MaximumSalary = 200，The Maximum Salary field must contain a number greater than or equal to Minimum Salary

Answer 1

嘗試這個

錯誤

'trim|required|min_length[1]|max_length[20]|numeric|greater_than_equal_to['.$this->input->post('MinimumSalary').']');