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首頁後端開發php教程请问php二维数组 查找相同的值合并 如何写？

请问php二维数组 查找相同的值合并 如何写？

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Jun 23, 2016 pm 01:44 PM

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


回复讨论(解决方案)

那你最终要达成什么样的结果呢？
目的不同，算法也不同

那你最终要达成什么样的结果呢？
目的不同，算法也不同 


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

就是这样的 相同的标题 不同的就是pictureurl
合并就行了 求版主指点~ 

$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",  ),);foreach(call_user_func_array('array_merge_recursive', $ar) as $key=>$item) {  $res[$key] = join(',', array_unique($item));}var_export($res);
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,attachment/picture/uploadify/20141120/546da0746edb8.png',)

$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",  ),);foreach(call_user_func_array('array_merge_recursive', $ar) as $key=>$item) {  $res[$key] = join(',', array_unique($item));}var_export($res);
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,attachment/picture/uploadify/20141120/546da0746edb8.png',)


版主大人 还得麻烦您看眼 这个是在相同的标题下才合并的 貌似有点复杂 
array(6) {  [0] => array(5) {    ["picTitle"] => string(7) "标题2"    ["picCategroy"] => string(6) "海报"    ["picAuthor"] => string(12) "星耀学园"    ["picPostTime"] => string(19) "2014-11-26 11:59:50"    ["pictureurl"] => string(55) "attachment/picture/uploadify/20141126/547550278b7db.jpg"  }  [1] => array(5) {    ["picTitle"] => string(7) "标题2"    ["picCategroy"] => string(6) "海报"    ["picAuthor"] => string(12) "星耀学园"    ["picPostTime"] => string(19) "2014-11-26 11:59:50"    ["pictureurl"] => string(55) "attachment/picture/uploadify/20141126/54755027ab89b.jpg"  }  [2] => array(5) {    ["picTitle"] => string(7) "标题2"    ["picCategroy"] => string(6) "海报"    ["picAuthor"] => string(12) "星耀学园"    ["picPostTime"] => string(19) "2014-11-26 11:59:50"    ["pictureurl"] => string(55) "attachment/picture/uploadify/20141126/547550273b753.jpg"  }  [3] => array(5) {    ["picTitle"] => string(7) "标题2"    ["picCategroy"] => string(6) "海报"    ["picAuthor"] => string(12) "星耀学园"    ["picPostTime"] => string(19) "2014-11-26 11:59:50"    ["pictureurl"] => string(55) "attachment/picture/uploadify/20141126/54755027d8488.jpg"  }  [4] => array(5) {    ["picTitle"] => string(33) "同步写入信息和附件表里"    ["picCategroy"] => string(6) "海报"    ["picAuthor"] => string(12) "星耀学园"    ["picPostTime"] => string(19) "2014-11-20 16:05:16"    ["pictureurl"] => string(55) "attachment/picture/uploadify/20141120/546da0746edb8.png"  }  [5] => array(5) {    ["picTitle"] => string(33) "同步写入信息和附件表里"    ["picCategroy"] => string(6) "海报"    ["picAuthor"] => string(12) "星耀学园"    ["picPostTime"] => string(19) "2014-11-20 16:05:16"    ["pictureurl"] => string(55) "attachment/picture/uploadify/20141120/546da0784831c.png"  }}

用您这个处理完 都合并在一起了 我想是不同的标题的是不一样的 标题1 相同标题的都合并在一起 一个数组 标题2相同的合并在一起一个数组 就是图片链接pictureurl 这个进行合并  求大大指点 如何判断很多个标题里 判断标题是重复的呢 这个肯定是一个标题有多个重复的数组， 主要是区分去多个不同标题。  
array ( 'picTitle' => '标题2,同步写入信息和附件表里', 'picCategroy' => '海报', 'picAuthor' => '星耀学园', 'picPostTime' => '2014-11-26 11:59:50,2014-11-20 16:05:16', 'pictureurl' => 'attachment/picture/uploadify/20141126/547550278b7db.jpg,attachment/picture/uploadify/20141126/54755027ab89b.jpg,attachment/picture/uploadify/20141126/547550273b753.jpg,attachment/picture/uploadify/20141126/54755027d8488.jpg,attachment/picture/uploadify/20141120/546da0746edb8.png,attachment/picture/uploadify/20141120/546da0784831c.png', )

$ar = array(  array(    "picTitle" => "标题2",    "picCategroy" => "海报",    "picAuthor" => "星耀学园",    "picPostTime" => "2014-11-26 11:59:50",    "pictureurl" => "attachment/picture/uploadify/20141126/547550278b7db.jpg",  ),  array(    "picTitle" => "标题2",    "picCategroy" => "海报",    "picAuthor" => "星耀学园",    "picPostTime" => "2014-11-26 11:59:50",    "pictureurl" => "attachment/picture/uploadify/20141126/54755027ab89b.jpg",  ),  array(    "picTitle" => "标题2",    "picCategroy" => "海报",    "picAuthor" => "星耀学园",    "picPostTime" => "2014-11-26 11:59:50",    "pictureurl" => "attachment/picture/uploadify/20141126/547550273b753.jpg",  ),  array(    "picTitle" => "标题2",    "picCategroy" => "海报",    "picAuthor" => "星耀学园",    "picPostTime" => "2014-11-26 11:59:50",    "pictureurl" => "attachment/picture/uploadify/20141126/54755027d8488.jpg",  ),  array(    "picTitle" => "同步写入信息和附件表里",    "picCategroy" => "海报",    "picAuthor" => "星耀学园",    "picPostTime" => "2014-11-20 16:05:16",    "pictureurl" => "attachment/picture/uploadify/20141120/546da0746edb8.png",  ),  array(    "picTitle" => "同步写入信息和附件表里",    "picCategroy" => "海报",    "picAuthor" => "星耀学园",    "picPostTime" => "2014-11-20 16:05:16",    "pictureurl" => "attachment/picture/uploadify/20141120/546da0784831c.png",  ),);$res = array();foreach($ar as $item) {  if(! isset($res[$item['picTitle']])) $res[$item['picTitle']] = $item;  else $res[$item['picTitle']]['pictureurl'] .= ',' . $item['pictureurl'];}var_export(array_values($res));
array (  0 =>   array (    'picTitle' => '标题2',    'picCategroy' => '海报',    'picAuthor' => '星耀学园',    'picPostTime' => '2014-11-26 11:59:50',    'pictureurl' => 'attachment/picture/uploadify/20141126/547550278b7db.jpg,attachment/picture/uploadify/20141126/54755027ab89b.jpg,attachment/picture/uploadify/20141126/547550273b753.jpg,attachment/picture/uploadify/20141126/54755027d8488.jpg',  ),  1 =>   array (    'picTitle' => '同步写入信息和附件表里',    'picCategroy' => '海报',    'picAuthor' => '星耀学园',    'picPostTime' => '2014-11-20 16:05:16',    'pictureurl' => 'attachment/picture/uploadify/20141120/546da0746edb8.png,attachment/picture/uploadify/20141120/546da0784831c.png',  ),)

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
}
}

补充下  unset($ar[$key]); //删除原来在数组存在的值
这句移动到这个下面，疏忽写错了
//在的话合并
$ar[$key]=array_merge($ar[$key],$map_arr[$item['picTitle']]); 

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

$ar = array(  array(    "picTitle" => "标题2",    "picCategroy" => "海报",    "picAuthor" => "星耀学园",    "picPostTime" => "2014-11-26 11:59:50",    "pictureurl" => "attachment/picture/uploadify/20141126/547550278b7db.jpg",  ),  array(    "picTitle" => "标题2",    "picCategroy" => "海报",    "picAuthor" => "星耀学园",    "picPostTime" => "2014-11-26 11:59:50",    "pictureurl" => "attachment/picture/uploadify/20141126/54755027ab89b.jpg",  ),  array(    "picTitle" => "标题2",    "picCategroy" => "海报",    "picAuthor" => "星耀学园",    "picPostTime" => "2014-11-26 11:59:50",    "pictureurl" => "attachment/picture/uploadify/20141126/547550273b753.jpg",  ),  array(    "picTitle" => "标题2",    "picCategroy" => "海报",    "picAuthor" => "星耀学园",    "picPostTime" => "2014-11-26 11:59:50",    "pictureurl" => "attachment/picture/uploadify/20141126/54755027d8488.jpg",  ),  array(    "picTitle" => "同步写入信息和附件表里",    "picCategroy" => "海报",    "picAuthor" => "星耀学园",    "picPostTime" => "2014-11-20 16:05:16",    "pictureurl" => "attachment/picture/uploadify/20141120/546da0746edb8.png",  ),  array(    "picTitle" => "同步写入信息和附件表里",    "picCategroy" => "海报",    "picAuthor" => "星耀学园",    "picPostTime" => "2014-11-20 16:05:16",    "pictureurl" => "attachment/picture/uploadify/20141120/546da0784831c.png",  ),);$res = array();foreach($ar as $item) {  if(! isset($res[$item['picTitle']])) $res[$item['picTitle']] = $item;  else $res[$item['picTitle']]['pictureurl'] .= ',' . $item['pictureurl'];}var_export(array_values($res));
array (  0 =>   array (    'picTitle' => '标题2',    'picCategroy' => '海报',    'picAuthor' => '星耀学园',    'picPostTime' => '2014-11-26 11:59:50',    'pictureurl' => 'attachment/picture/uploadify/20141126/547550278b7db.jpg,attachment/picture/uploadify/20141126/54755027ab89b.jpg,attachment/picture/uploadify/20141126/547550273b753.jpg,attachment/picture/uploadify/20141126/54755027d8488.jpg',  ),  1 =>   array (    'picTitle' => '同步写入信息和附件表里',    'picCategroy' => '海报',    'picAuthor' => '星耀学园',    'picPostTime' => '2014-11-20 16:05:16',    'pictureurl' => 'attachment/picture/uploadify/20141120/546da0746edb8.png,attachment/picture/uploadify/20141120/546da0784831c.png',  ),)



谢谢版主大人 解决了 只不过最后的这个var_export函数去掉 就是我要的结果了~
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mPDF是一個PHP庫，可以從UTF-8編碼的HTML產生PDF檔案。原作者Ian Back編寫mPDF以從他的網站上「即時」輸出PDF文件，並處理不同的語言。與原始腳本如HTML2FPDF相比，它的速度較慢，並且在使用Unicode字體時產生的檔案較大，但支援CSS樣式等，並進行了大量增強。支援幾乎所有語言，包括RTL（阿拉伯語和希伯來語）和CJK（中日韓）。支援嵌套的區塊級元素（如P、DIV），

SublimeText3 Linux新版

SublimeText3 Linux新版

SublimeText3 Linux最新版

記事本++7.3.1

記事本++7.3.1

好用且免費的程式碼編輯器

DVWA

DVWA

Damn Vulnerable Web App (DVWA) 是一個PHP/MySQL的Web應用程序，非常容易受到攻擊。它的主要目標是成為安全專業人員在合法環境中測試自己的技能和工具的輔助工具，幫助Web開發人員更好地理解保護網路應用程式的過程，並幫助教師/學生在課堂環境中教授/學習Web應用程式安全性。 DVWA的目標是透過簡單直接的介面練習一些最常見的Web漏洞，難度各不相同。請注意，該軟體中

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