我正在使用此代码从数据库中重新填充下拉列表:
$city_id = 15;
while($row = mysql_fetch_assoc($result)) {
$selected = ($row['city_id'] == $city_id) ? 'selected="selected" ' : NULL;
echo '<option value="'.$city_id .$selected . '">"'.$row['city_name'].'"</option>\n';
}
它的工作就像一个魅力,但我的问题是,它们是不是更优雅的解决方案?
最佳答案
我总是使用一个函数,因为选择框是我最终创造了很多…
function select($name, $default, $values, $style='', $param='') {
$html = '<select name="'.$name.'" style="'.$style.'" '.$param.' >';
foreach($values as $i => $data) {
if (isset($data['noFormat'])) {
$html .= '<option value="'.$data['value'].'" '.(($data['value']==$default)?'SELECTED="SELECTED"':'').' '.
(isset($data['style']) ? ' style="'.$data['style'].'" ' : '').'>'.$data['text'].'</option>';
} else {
$html .= '<option value="'.htmlentities($data['value']).'" '.(($data['value']==$default)?'SELECTED="SELECTED"':'').' '.
(isset($data['style']) ? ' style="'.$data['style'].'" ' : '').'>'.htmlentities($data['text']).'</option>';
}
}
$html .= '</select>';
return $html;
}
然后循环查询以生成如下数组:
$default[] = array('value' => '0', 'text' => 'Select a City...');
while($row = mysql_fetch_assoc($result)) {
$list[] = array('value' => $row['city_id'], 'text' => $row['city_name']);
}
$list = array_merge($default,$list);
最后是一个创建html的示例:
select('select','form_el_name',$list['0'],$list,'font-size:12px;','onChange="document.forms[0].submit();"');
希望有帮助!