Here, i will show you how to create dependent dropdown list of categories and subcategories in php mysql with jQuery ajax.

PHP MySQL Dynamic Category and SubCategory Dependent Dropdown List using Ajax

Just follow below steps for retrieve and display category and subcategory in dropdown list onchange in PHP MySQL using jQuery ajax:

• Step 1: Create Table
• Step 2: Insert Data In Table(Category and SubCategory)
• Step 3: Create DB Connection PHP File
• Step 4: Create Form And Category, SubCategory Dropdown in Form
• Step 5: Get Sub Category in Dropdown List by Category Id

https://www.tutsmake.com/category-subcategory-dropdown-in-php-mysql-ajax/

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