使用数组合并两个不同的表

Question

我有两个表。

1）产品有：ID，名称，价格

2）书：ID，标题，book_price

现在我要合并这两个表的数据，并通过价格最低使用数组排序。

如何合并这两个数组？

应该是这样的：

<?php 
$a1=array( 
      "id"=>1,"name"=>'Ram',"price"=>100 , 
      "id"=>2,"name"=>'Keyboard',"price"=>200 , 
      "id"=>3,"name"=>'Mouse',"price"=>300 , 
      "id"=>4,"name"=>'LCD',"price"=>400 , 

      ); 


$a2=array( 
      "id"=>1,"title"=>'ABC',"book_price"=>150 , 
      "id"=>2,"title"=>'XYZ',"book_price"=>250 , 

      ); 


print_r(array_merge($a1,$a2)); 
?> 

Answer 1

$a2=array( 
      "id"=>1,"title"=>'Regions',"book_price"=>150 , 
      "id"=>2,"title"=>'Routes',"book_price"=>250 , 

      ); 

$a1=array( 
      "id"=>1,"name"=>'Ram',"price"=>100 , 
      "id"=>2,"name"=>'Keyboard',"price"=>200 , 
      "id"=>3,"name"=>'Mouse',"price"=>300 , 
      "id"=>4,"name"=>'LCD',"price"=>400 , 

      ); +a2 

，或者

$输出= $ A1 + A2 $;