Php two-dimensional array merging Methods

Yesterday I also wrote a technical article on Array merging, where I introduced one-dimensional array merging. Here I will introduce the php two-dimensional array merging method. I hope it will be helpful to you.

Example 1

Merge Arrays Using custom methods

First look at a two-dimensional array:

The Code is as follows:

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<? Php Array ( [0] => Array ( [A] => store_name [B] => store 1 ) [1] => Array ( [A] => store_owner [B] => Xiaofeng ) [2] => Array ( [A] => store_name [B] => store 2 ) [3] => Array ( [A] => store_owner [B] => Xiao Lei ) ?> You will find that there are two store_name and store_owner, so I want them to merge them into the following: <? Php Array ( [0] => Array ( [A] => store 1 [B] => Xiaofeng ) [1] => Array ( [A] => store 2 [B] => Xiao Lei ) ?>

The merge method is as follows:

The Code is as follows:

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<? Php $ Stores = array (); // defines an empty array $ Store_count = count ($ showinfo); // count the number of times displayed. Here, $ showinfo is a variable when I get the database content, and then print it as it was just the first one. For ($ I = 0; $ I <$ store_count; $ I ++) { $ J = $ I + 1; // skip the first level of $ I plus 1, which is equivalent to obtaining an odd key value for $ j. $ Stores [] = array ( 'Name' => $ showinfo [$ I] ['value'], 'Owner' => $ showinfo [$ j] ['value'], ); $ I = $ j; // The function here is equivalent to getting an even key value from $ I. } ?>

In this way, we can get the above results!

To help you better understand the structure of the database table, the main fields are as follows:

Key value

Store_name online shop 1

Store_owner Xiaofeng

Store_name online shop 2

Store_owner Xiao Lei

 

After using the above method, the front-end page will be displayed in a row, as shown below:

Name owner

Online Shop yixiaofeng

Shop 2 Xiaolei

Example 3

The Code is as follows:

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<? Php $ Arr = array ( 0 => array ( '1 @ 01,02 ', '2 @ 01,02 ', '4 @ all ', '3 @ 01 ', '5 @ 01,02, 04 ', ), 1 => array ( '1 @ 01,02, 03 ', '2 @ 01,02, 04 ', '3 @ all ', '4 @ 01,02 ', '2017 @ 111 ', '5 @ 03 ', ), 2 => array ( '1 @ 01,02, 03 ', '2 @, 05 ', '3 @ all ', '4 @ 01,02, 03 ', '2017 @ 111 ', '5 @ 03 ', ), ); $ Result = array (); Foreach ($ arr as $ items ){ If (is_array ($ items )){ Foreach ($ items as $ item ){ $ Item = explode ('@', $ item ); If (count ($ item )! = 2 ){ Continue; } $ Result [$ item [0]. = $ item [1]. ','; } } } Function reJoin (& $ item, $ key, $ seq ){ $ List = array_unique (explode ($ seq, $ item )); If (in_array ('all', $ list )){ $ Item = $ key. '@ all '; } Else { $ Item = $ key. '@'. join ($ seq, $ list ); } } Array_walk ($ result, 'rejoin ',','); Sort ($ result ); Var_export ($ result ); /** * Array ( * 0 => '2017 @ 111 ,', * 1 => '1 @ 01,02, 03 ,', * 2 => '2 @ 01,02, 04,03, 05 ,', * 3 => '3 @ all ', * 4 => '4 @ all ', * 5 => '5 @ 01,02, 04,03 ,', *) */ ?>