如果提交笨爲什麼表單輸入禁止顯示空值

Question

你好，我需要你的幫助

我在我的控制器這樣form_input，

//getting datas from database I need to make edit form 
$datas = $this->getvaluesitebyid($this->input->get('stid', TRUE)); 
$data['siteid'] = array(
      'name' => 'siteid', 
      'type' => 'text', 
      'class' => 'form-control', 
      'placeholder' => 'Site ID', 
      'value' => $datas['site_id_tlp'], 
      'id' => 'disabledInput', 
      'disabled' => '' //I set this form to be disabled 
     ); 

，並在我看來，我打開窗體

<?php echo form_input($siteid); ?> 

表單將被禁用，但爲什麼如果我提交我得到空值？ 我在提交到數據庫之前給了form_validation。但這種形式的雲無效，因爲該值爲空

這是我的規則

$this->form_validation->set_rules('siteid', 'Site ID', 'trim|required|max_length[100]'); 

請幫幫我，謝謝

Answer 1

Attribute definitions 

disabled [CI] When set for a form control, this boolean attribute disables the control for user input. When set, the disabled attribute has the following effects on an element: 

    Disabled controls do not receive focus. 
    Disabled controls are skipped in tabbing navigation. 
    Disabled controls cannot be successful. 

The following elements support the disabled attribute: BUTTON, INPUT, OPTGROUP, OPTION, SELECT, and TEXTAREA. 

This attribute is inherited but local declarations override the inherited value. 

How disabled elements are rendered depends on the user agent. For example, some user agents "gray out" disabled menu items, button labels, etc. 

In this example, the INPUT element is disabled. Therefore, it cannot receive user input nor will its value be submitted with the form. 

<INPUT disabled name="fred" value="stone"> 

Note. The only way to modify dynamically the value of the disabled attribute is through a script. 

See This Also

我想你可以把只讀instedof殘疾人，禁用殘疾人不會是真的，因爲它總是空着。

你應該改變這樣的：

//getting datas from database I need to make edit form 
$datas = $this->getvaluesitebyid($this->input->get('stid', TRUE)); 
$data['siteid'] = array(
     'name' => 'siteid', 
     'type' => 'text', 
     'class' => 'form-control', 
     'placeholder' => 'Site ID', 
     'value' => $datas['site_id_tlp'], 
     'id' => 'disabledInput', 
     'readonly' => 'readonly' //I set this form to be disabled 
    );