jquery自动完成ID和值

时间:2015-09-12 16:16:21

标签: javascript php jquery autocomplete

我想使用自动填充来搜索城市和自动填充城市名称和城市ID文本框。看起来很简单,但即使我通过许多例子,我根本无法使其工作:( 我最大的成功是下面的代码,但它有两个独立的自动填充。

HTML:

  <form action="form_handler_event_add.php" 
        method="post" 
        name="form_event_add">
    City: <input type="text" id="city" name="city" />
    ID_City : <input type="text" id="id_city" name="id_city" />
</form>

脚本:

    <script type="text/javascript">
            $(document).ready(function(){
                $("#city").autocomplete({
                    source:'handler_getautocomplete.php',
                    minLength:1
                });
                $("#id_city").autocomplete({
                    source:'handler_getautocomplete.php',
                    minLength:1
                });
            });
    </script>     

handler_getautocomplete.php:

 $query=mysql_query("SELECT * FROM cities WHERE city_name like '%".$term."%'");
 $json=array();

    while($city=mysql_fetch_array($query)){
         $json[]=array(
                    'value'=> $city["city_name"],
                    'id'=>$city["id_city"]
                        );
    }

 echo json_encode($json);

3 个答案:

答案 0 :(得分:2)

因此,如果您想在选择城市时填写#id_city输入,请使用select事件:

PHP:handler_getautocomplete.php应该按以下格式从数组中返回json编码的字符串:

$json = [
    [ 'id' => 1, 'value' => 'New York' ],
    [ 'id' => 2, 'value' => 'Alabama' ],
    [ 'id' => 4, 'value' => 'Seatle' ],
    [ 'id' => 6, 'value' => 'San Francisco' ]
];

JS:

$("#city").autocomplete({
    source:'handler_getautocomplete.php',
    minLength:1,
    select: function( event, ui ) {
        $( '#id_city' ).val( ui.item.id );                  
    }
});

答案 1 :(得分:1)

我认为问题出在json编码中。在php处理程序中试试这个:

$query=mysql_query("SELECT * FROM cities WHERE city_name like '%".$term."%'");
$json=array();

while($city=mysql_fetch_array($query)){
    $value[] = $city['city_name'];
    $id[] = $city['city_id'];
}

$city_array = array('value' => json.encode(array_values($value)),
                   'id' => json.encode(array_values($id))
                  );
return $city_array;

我认为最好将它作为返回二维数组的函数,它可以存储在变量$ cities中。 在javascript代码中,您应该执行以下操作:

<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.18/jquery-ui.min.js"></script>
<link rel="stylesheet" type="text/css" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/base/jquery-ui.css" />
<script type="text/javascript">
$(document).ready(function(){
    $("#city").autocomplete({source: <?php echo $cities['value']; ?>, minLength: 1});
    $("#id_city").autocomplete({source: <?php echo $cities['id']; ?>, minLength: 1});
</script> 

主要问题是json格式对于jquery自动完成无效,打印它以便您可以看到差异。希望它可以帮到你。

答案 2 :(得分:0)

最后管理它。这是最终的代码,也许对某人有帮助:

HTML:

    City : <input type="text" id="city" name="city" />
    ID_city : <input type="text" id="id_city" name="id_city" />

脚本:

<script type="text/javascript">
$(document).ready(function(){
    var ac_config = {
        source:'handler_getautocomplete.php',
    select: function(event, ui) { 
        $('#id_city').val(ui.item.value); 
        event.preventDefault(); 
        $("#city").val(ui.item.label); },    
        minLength:1
    };
    $("#city").autocomplete(ac_config);
});
</script>   

PHP:

$term = trim(strip_tags($_GET['term']));
$query=mysql_query("SELECT city_name, id_city FROM cities WHERE city_name like '%".$term."%'");


$matches = array();

    while($city=mysql_fetch_array($query) and $i<10){
    $matches[]=array('value' => $city['id_city'],
                     'label' => $city['city_name'])                 
                         ;}
print json_encode($matches);