How to get the values ​​of multiple input elements with the same name in a form in php

Sometimes the front page needs to allow dynamic addition/deletion of multiple values ​​of a certain attribute, such as adding books to the bookshelf, and it must be possible to dynamically add or delete books.

There will be multiple input elements in the form of the front page, as follows:

<form action="a.php"> 
<input type="text" name="books[]"/> 
<input type="text" name="books[]"/> 
<input type="text" name="books[]"/> 
<input type="submit" name="submit" /> 
</form>

When the a.php page receives the form data, you can use $books = $_REQUEST['books'] ;Get the array of all book titles.

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