<pre class="brush:php;toolbar:false;">Array
(
[0] => Array
(
[shi] => 市辖区
[qu] => 曹子里
[url] => s120100
)
[1] => Array
(
[shi] => 市辖区
[qu] => 杨村
[url] => s120100
)
[2] => Array
(
[shi] => 辖县
[qu] => 蓟县
[url] => s120200
)
[3] => Array
(
[shi] => 市辖区
[qu] => 滨海北
[url] => s120100
)
[4] => Array
(
[shi] => 辖县
[qu] => 下仓
[url] => s120200
)
[5] => Array
(
[shi] => 市辖区
[qu] => 宝坻
[url] => s120100
)
[6] => Array
(
[shi] => 市辖区
[qu] => 天津南
[url] => s120100
)
[7] => Array
(
[shi] => 辖县
[qu] => 静海
[url] => s120200
)
[8] => Array
(
[shi] => 市辖区
[qu] => 军粮城北
[url] => s120100
)
[9] => Array
(
[shi] => 市辖区
[qu] => 天津
[url] => s120100
)
[10] => Array
(
[shi] => 市辖区
[qu] => 崔黄口
[url] => s120100
)
[11] => Array
(
[shi] => 市辖区
[qu] => 武清
[url] => s120100
)
[12] => Array
(
[shi] => 辖县
[qu] => 芦台
[url] => s120200
)
[13] => Array
(
[shi] => 市辖区
[qu] => 大口屯
[url] => s120100
)
[14] => Array
(
[shi] => 市辖区
[qu] => 天津西
[url] => s120100
)
[15] => Array
(
[shi] => 市辖区
[qu] => 豆张庄
[url] => s120100
)
[16] => Array
(
[shi] => 市辖区
[qu] => 滨海
[url] => s120100
)
[17] => Array
(
[shi] => 辖县
[qu] => 唐官屯
[url] => s120200
)
[18] => Array
(
[shi] => 市辖区
[qu] => 落垡
[url] => s120100
)
[19] => Array
(
[shi] => 市辖区
[qu] => 塘沽
[url] => s120100
)
[20] => Array
(
[shi] => 市辖区
[qu] => 茶淀
[url] => s120100
)
[21] => Array
(
[shi] => 市辖区
[qu] => 杨柳青
[url] => s120100
)
[22] => Array
(
[shi] => 辖县
[qu] => 上仓
[url] => s120200
)
)
//归类的函数
//合并某一字段键值相同的数组
function same_value_combine($array,$start){
    static $new;
    foreach($array as $k=>$v){
        if($v['shi']==$start){
            $new[$v['url']][] = $v;
            unset($array[$k]);
            continue;
        }
    }
    sort($array);
    if(count($array)!==0){
        same_value_combine($array,$array[0]['shi']);
    }
    return $new;
}
//执行函数
$new = same_value_combine($list,$list[0]['shi']);
################################################################################################
//打印结果
##################################################################################################
Array
(
[s120100] => Array
(
[0] => Array
(
[shi] => 市辖区
[qu] => 曹子里
[url] => s120100
)
[1] => Array
(
[shi] => 市辖区
[qu] => 杨村
[url] => s120100
)
[2] => Array
(
[shi] => 市辖区
[qu] => 滨海北
[url] => s120100
)
[3] => Array
(
[shi] => 市辖区
[qu] => 宝坻
[url] => s120100
)
[4] => Array
(
[shi] => 市辖区
[qu] => 天津南
[url] => s120100
)
[5] => Array
(
[shi] => 市辖区
[qu] => 军粮城北
[url] => s120100
)
[6] => Array
(
[shi] => 市辖区
[qu] => 天津
[url] => s120100
)
[7] => Array
(
[shi] => 市辖区
[qu] => 崔黄口
[url] => s120100
)
[8] => Array
(
[shi] => 市辖区
[qu] => 武清
[url] => s120100
)
[9] => Array
(
[shi] => 市辖区
[qu] => 大口屯
[url] => s120100
)
[10] => Array
(
[shi] => 市辖区
[qu] => 天津西
[url] => s120100
)
[11] => Array
(
[shi] => 市辖区
[qu] => 豆张庄
[url] => s120100
)
[12] => Array
(
[shi] => 市辖区
[qu] => 滨海
[url] => s120100
)
[13] => Array
(
[shi] => 市辖区
[qu] => 落垡
[url] => s120100
)
[14] => Array
(
[shi] => 市辖区
[qu] => 塘沽
[url] => s120100
)
[15] => Array
(
[shi] => 市辖区
[qu] => 茶淀
[url] => s120100
)
[16] => Array
(
[shi] => 市辖区
[qu] => 杨柳青
[url] => s120100
)
)
[s120200] => Array
(
[0] => Array
(
[shi] => 辖县
[qu] => 上仓
[url] => s120200
)
[1] => Array
(
[shi] => 辖县
[qu] => 下仓
[url] => s120200
)
[2] => Array
(
[shi] => 辖县
[qu] => 唐官屯
[url] => s120200
)
[3] => Array
(
[shi] => 辖县
[qu] => 芦台
[url] => s120200
)
[4] => Array
(
[shi] => 辖县
[qu] => 蓟县
[url] => s120200
)
[5] => Array
(
[shi] => 辖县
[qu] => 静海
[url] => s120200
)
)
)
#################################################################################################################
以上就介绍了根据某一键名对键值相同的分类，包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。
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