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This article introduces the knowledge about "how to add a field to an array in php". In the actual case operation process, many people will encounter such a dilemma. Next, let Xiaobian lead you to learn how to deal with these situations! I hope you can read carefully and learn something!

Php to add a field to the array method: 1, define an array in the form of key-value pairs;2, directly through the "$array_test <$'new_test']= $new_test;" way to add a field.

Operating environment: Windows 7, PHP 7.4, DELL G3

How to add a field to an array in php?

PHP adds a field to an array to store an array

As I like lazy, find a PHP function is the most convenient, but I found that the original method is a lot, but there are also a lot of pits. Let's define an array and show you what we need to add.

//define an array of key pairs.$ array_test = array ('a ' => "aa",'b' => "bb",);//Define a key-value pair to be added, which is also placed in the array, that is, add a new field'new_test'=>$new_test$new_test = array ('c' => "cc",'d' => "dd",);

For example: array_push($array_test ,array ('new_test' => $new_test)), although it can also be spliced, but the newly added key-value pair you will find, why is the original data changed to'0'=>array(2); instead of adding a new field'new_test'=>$new_test.

This is the problem with array_push(), and according to the Internet:

Even if there are string keys in the array, the elements you add are always numeric keys.

If array_push() is used to add a cell to the array, it is better to use $array[] =, because there is no extra burden of calling the function.

Note: array_merge() is not allowed because it concatenates two strings, rather than adding another array with new fields to the specified array.

So what do we do?

Super simple, so simple that I want to take out my own brain to see if it is stupid to learn, water!

$array_test ['new_test']= $new_test; is super simple, wow, now look at what the array looks like after this step:

$array_test = array ('a ' => "aa",'b' => "bb",'new_test' => array ('c' => "cc",'d' => "dd",));"How to add a field to an array in php" is introduced here. Thank you for reading. If you want to know more about industry-related knowledge, you can pay attention to the website. Xiaobian will output more high-quality practical articles for everyone!

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