请教php二维数组查找相同的值合并怎么写-php教程-PHP中文网

请教php二维数组查找相同的值合并怎么写

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发布： 2016-06-13 12:10:33

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请问php二维数组查找相同的值合并如何写？
这个是数组
主要功能就是Thinkphp视图模型里查询的结果  我想

查询每个数组里的相同的标题值然后进行合并                合并数组貌似用array_merge()
我怎么查找相同的标题呢  foreach 遍历返回数组里的索引值可以么       貌似 key() 函数有这个功能求好心人具体写个

相同的标题数组元素的位置这样返回合并的时候就直接这样的形式用可以么
array_merge(array[0],array[1])

相同的标题然后合并的是图片的连接字段这样 pictureurl就是这个不一样
简单说就是多图上传发文章这样的  文章找找以后要是有几千篇那数组就是好几倍的量  高效的计算能用的求大神指点啊~
这样

array(2) {<br />  [0] => array(5) {<br />    ["picTitle"] => string(33) "标题1"<br />    ["picCategroy"] => string(6) "分类"<br />    ["picAuthor"] => string(12) "作者"<br />    ["picPostTime"] => string(19) "2014-11-20 16:05:16"<br />    ["pictureurl"] => string(55) "attachment/picture/uploadify/20141120/546da0784831c.png"<br />  }<br />  [1] => array(5) {<br />    ["picTitle"] => string(33) "标题1"<br />    ["picCategroy"] => string(6) "分类"<br />    ["picAuthor"] => string(12) "作者"<br />    ["picPostTime"] => string(19) "2014-11-20 16:05:16"<br />    ["pictureurl"] => string(55) "attachment/picture/uploadify/20141120/546da0746edb8.png"<br />  }<br />}

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------解决思路----------------------

$ar = array(<br />  array(<br />    "picTitle" => "标题1",<br />    "picCategroy" => "分类",<br />    "picAuthor" => "作者",<br />    "picPostTime" => "2014-11-20 16:05:16",<br />    "pictureurl" => "attachment/picture/uploadify/20141120/546da0784831c.png",<br />  ),<br />  array(<br />    "picTitle" => "标题1",<br />    "picCategroy" => "分类",<br />    "picAuthor" => "作者",<br />    "picPostTime" => "2014-11-20 16:05:16",<br />    "pictureurl" => "attachment/picture/uploadify/20141120/546da0746edb8.png",<br />  ),<br />);<br />foreach(call_user_func_array('array_merge_recursive', $ar) as $key=>$item) {<br />  $res[$key] = join(',', array_unique($item));<br />}<br />var_export($res);<br />

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array (<br />  'picTitle' => '标题1',<br />  'picCategroy' => '分类',<br />  'picAuthor' => '作者',<br />  'picPostTime' => '2014-11-20 16:05:16',<br />  'pictureurl' => 'attachment/picture/uploadify/20141120/546da0784831c.png,attachment/picture/uploadify/20141120/546da0746edb8.png',<br />)<br />

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------解决思路----------------------
随便写了下，没测试过，大楷是这么个思路

$ar = array(
  array(
    "picTitle" => "标题1",
    "picCategroy" => "分类",
    "picAuthor" => "作者",
    "picPostTime" => "2014-11-20 16:05:16",
    "pictureurl" => "attachment/picture/uploadify/20141120/546da0784831c.png",
  ),
  array(
    "picTitle" => "标题1",
    "picCategroy" => "分类",
    "picAuthor" => "作者",
    "picPostTime" => "2014-11-20 16:05:16",
    "pictureurl" => "attachment/picture/uploadify/20141120/546da0746edb8.png",
  ),
);

//标题=>数组索引数组
$map_arr=array();
foreach($ar as $key=>$item)
{
//判断是否在标题=>数组索引数组中
if(isset($map_arr[$item['picTitle']]))
{
//在的话合并
$ar[$key]=array_merge($ar[$key],$map_arr[$item['picTitle']]);
}
else
{
//不在的话存入映射索引
$map_arr[$item['picTitle']]=$item;
unset($ar[$key]); //删除原来在数组存在的值
}
}

------解决思路----------------------

<br />$arr = array(<br />  array(<br />    "picTitle" => "标题1",<br />    "picCategroy" => "分类",<br />    "picAuthor" => "作者",<br />    "picPostTime" => "2014-11-20 16:05:16",<br />    "pictureurl" => "attachment/picture/uploadify/20141120/546da0784831c.png",<br />  ),<br />  array(<br />    "picTitle" => "标题1",<br />    "picCategroy" => "分类",<br />    "picAuthor" => "作者",<br />    "picPostTime" => "2014-11-20 16:05:16",<br />    "pictureurl" => "attachment/picture/uploadify/20141120/546da0746edb8.png",<br />  )<br />);<br />$item=array();<br />foreach($arr as $key=>$value){<br />    foreach($value as $k=>$v){<br />        if(!isset($item[$k])){<br />            $item[$k]=$v;<br />        }<br />    }<br />}<br />print_r($item);<br />

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