问个二位数组操作问题-PHP Tutorial-php.cn

问个二位数组操作问题

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Release： 2016-06-23 13:56:42

Original

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$aa=array("id"=>"1","time"=>"5","neirong"=>"www");
$aa=array("id"=>"2","time"=>"55","neirong"=>"www");
$aa=array("id"=>"4","time"=>"555","neirong"=>"www");
$aa=array("id"=>"5","time"=>"555","neirong"=>"www");
$aaa=array("duibi"=>$aa);

$bb=array("id"=>"1","time"=>"5");
$bb=array("id"=>"2","time"=>"50");
$bb=array("id"=>"3","time"=>"555");
$bbb=array("duibi"=>$bb);

$aaa和$bbb对比操作
变成
$cc=array("id"=>"2","time"=>"55","neirong"=>"www");
$cc=array("id"=>"3","neirong"=>"delete");
$cc=array("id"=>"4","time"=>"555","neirong"=>"www");
$cc=array("id"=>"5","time"=>"555","neirong"=>"www");

怎么写

先说明下

$aa=array("id"=>"1","time"=>"5","neirong"=>"www");这个数据之所已没有是因为 $aa和$bb时间是一样的

$aa=array("id"=>"2","time"=>"55","neirong"=>"www");
$bb=array("id"=>"2","time"=>"50");
那是因为bbdetime比aa得time小所以。。

$cc=array("id"=>"3","neirong"=>"delete");对应的$aa不存在所以。。

$cc=array("id"=>"4","time"=>"555","neirong"=>"www");
$cc=array("id"=>"5","time"=>"555","neirong"=>"www");

因为$bb没有对应的id 4和5的数据。。所以

回复讨论(解决方案)

太基础了，回去重练...

有本事你写个？

多维数组拼写起来确实费点时间，试着写了一个，不知道是不是楼主所要的结果
array (size=4)
  0 =>
    array (size=3)
      'id' => string '3' (length=1)
      'time' => string '555' (length=3)
      'neirong' => string 'delete' (length=6)
  1 =>
    array (size=3)
      'id' => string '2' (length=1)
      'time' => string '55' (length=2)
      'neirong' => string 'www' (length=3)
  2 =>
    array (size=3)
      'id' => string '4' (length=1)
      'time' => string '555' (length=3)
      'neirong' => string 'www' (length=3)
  3 =>
    array (size=3)
      'id' => string '5' (length=1)
      'time' => string '555' (length=3)
      'neirong' => string 'www' (length=3)

。。。。。。。。。。

$aa=array(0=>array("id"=>"1","time"=>"5","neirong"=>"www"),1=>array("id"=>"2","time"=>"55","neirong"=>"www"),2=>array("id"=>"4","time"=>"555","neirong"=>"www"),3=>array("id"=>"5","time"=>"555","neirong"=>"www"));$bb=array(0=>array("id"=>"1","time"=>"5"),1=>array("id"=>"2","time"=>"50"),2=>array("id"=>"3","time"=>"555"));$cc=array();for($i=0;$i<sizeof($bb);$i++){    $id=$bb[$i]['id'];    if(!array_search($id,$aa[$i]))    $cc[]=array('id'=>$id,"neirong"=>"delete");}for($i=0;$i<sizeof($aa);$i++){    for($j=0;$j<sizeof($bb);$j++){        if($aa[$i]['id']==$bb[$j]['id']){            if($aa[$i]['time']==$bb[$j]['time']) array_splice($aa,$i,1);            if($aa[$i]['time']>$bb[$j]['time']){                $cc[]=$aa[$i];                array_splice($aa,$i,1);            }        }    }}$cc=array_merge($cc,$aa);print_r($cc);

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Array(    [0] => Array        (            [id] => 3            [neirong] => delete        )    [1] => Array        (            [id] => 2            [time] => 55            [neirong] => www        )    [2] => Array        (            [id] => 4            [time] => 555            [neirong] => www        )    [3] => Array        (            [id] => 5            [time] => 555            [neirong] => www        ))

Copy after login

$aa = array(  array("id"=>"1","time"=>"5","neirong"=>"www"),  array("id"=>"2","time"=>"55","neirong"=>"www"),  array("id"=>"4","time"=>"555","neirong"=>"www"),  array("id"=>"5","time"=>"555","neirong"=>"www"),);$bb = array(  array("id"=>"1","time"=>"5"),  array("id"=>"2","time"=>"50"),  array("id"=>"3","time"=>"555"),);foreach($aa as $v) $r[$v['id']] = $v;foreach($bb as $v) {  $k = $v['id'];  if(! isset($r[$k])) $r[$k] = $v;  elseif($r[$k]['time'] < $v['time']) $r[$k] = $v;  elseif($r[$k]['time'] == $v['time']) unset($r[$k]);}ksort($r);print_r($r);

Copy after login

Array(    [2] => Array        (            [id] => 2            [time] => 55            [neirong] => www        )    [3] => Array        (            [id] => 3            [time] => 555        )    [4] => Array        (            [id] => 4            [time] => 555            [neirong] => www        )    [5] => Array        (            [id] => 5            [time] => 555            [neirong] => www        ))

Copy after login

$aa = array(  array("id"=>"1","time"=>"5","neirong"=>"www"),  array("id"=>"2","time"=>"55","neirong"=>"www"),  array("id"=>"4","time"=>"555","neirong"=>"www"),  array("id"=>"5","time"=>"555","neirong"=>"www"),);$bb = array(  array("id"=>"1","time"=>"5"),  array("id"=>"2","time"=>"50"),  array("id"=>"3","time"=>"555"),);foreach($aa as $v) $r[$v['id']] = $v;foreach($bb as $v) {  $k = $v['id'];  if(! isset($r[$k])) $r[$k] = $v;  elseif($r[$k]['time'] < $v['time']) $r[$k] = $v;  elseif($r[$k]['time'] == $v['time']) unset($r[$k]);}ksort($r);print_r($r);

Copy after login

Array(    [2] => Array        (            [id] => 2            [time] => 55            [neirong] => www        )    [3] => Array        (            [id] => 3            [time] => 555        )    [4] => Array        (            [id] => 4            [time] => 555            [neirong] => www        )    [5] => Array        (            [id] => 5            [time] => 555            [neirong] => www        ))

Copy after login

[3] => Array
(
[id] => 3
[time] => 555
)
不对哈没delete

[id] => 3
[neirong] => delete

你原始的数据只有 $bb=array("id"=>"3","time"=>"555");
我不能凭空臆造出 "neirong"=>"delete"
但你可以，因为规则是你制定的
你自己加上就是了

<?php$aa[0]=array("id"=>"1","time"=>"5","neirong"=>"www");$aa[1]=array("id"=>"2","time"=>"55","neirong"=>"www");$aa[2]=array("id"=>"4","time"=>"555","neirong"=>"www");$aa[3]=array("id"=>"5","time"=>"555","neirong"=>"www");$bb[0]=array("id"=>"1","time"=>"5");$bb[1]=array("id"=>"2","time"=>"50");$bb[2]=array("id"=>"3","time"=>"555");$c = array();$d = array();$e = array();$j = array();foreach($bb as $v){  $e[] = $v['id'];}foreach($aa as $v){  $d[] = $v['id'];}$s = array_diff_assoc($e, $d);$f = array_diff_assoc($d, $e);$g = array_merge($s,$f);foreach($aa as $k=>$v){  foreach($bb as $k1=>$v1){    if($v['id']==$v1['id'] && $v1['time']>$v['time']){      $c[] = array('id'=>$v1['id'],'time'=>$v1['time'],'neirong'=>'delete');    }elseif($v['id']==$v1['id'] && $v1['time']<$v['time']){      $c[] = array('id'=>$v['id'],'time'=>$v['time'],'neirong'=>$v['neirong']);    }    foreach($g as $v2){      if($v['id'] == $v2 && !in_array($v['id'], $j)){        $c[] = array('id'=>$v['id'],'time'=>$v['time'],'neirong'=>$v['neirong']);        $j[] = $v['id'];      }      if($v1['id'] == $v2  && !in_array($v1['id'], $j)){        $c[] = array('id'=>$v1['id'],'time'=>$v1['time'],'neirong'=>'delete');        $j[] = $v1['id'];      }    }  }}var_dump($c);?>

Copy after login

我这个太麻烦了，自己可以改改，不太擅长简化代码

你原始的数据只有 $bb=array("id"=>"3","time"=>"555");
我不能凭空臆造出 "neirong"=>"delete"
但你可以，因为规则是你制定的
你自己加上就是了

哈哈我刚加上了

我这个太麻烦了，自己可以改改，不太擅长简化代码

刚看版主的代码是最好的直接遍历$aa跟$bb对比修改

<?php$aa = array(  array("id"=>"1","time"=>"5","neirong"=>"www"),  array("id"=>"2","time"=>"55","neirong"=>"www"),  array("id"=>"4","time"=>"555","neirong"=>"www"),  array("id"=>"5","time"=>"555","neirong"=>"www"),); $bb = array(  array("id"=>"1","time"=>"5"),  array("id"=>"2","time"=>"50"),  array("id"=>"3","time"=>"555"),); foreach($aa as $v) $r[$v['id']] = $v;foreach($bb as $v) {  $k = $v['id'];  if(! isset($r[$k]))  {    $v['content']='delete';    $r[$k] = $v;  }   elseif($r[$k]['time'] < $v['time']) $r[$k] = $v;  elseif($r[$k]['time'] == $v['time']) unset($r[$k]);}ksort($r);print_r($r);?>s

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