`state_name` varchar( 50) COLLATE utf8_unicode_ci NOT NULL, `state_id` int( 11) NOT NULL AUTO_INCREMENT, The following SQL creates a states table with parent country_id field in the MySQL database. ) ENGINE= InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci `status` tinyint( 1) NOT NULL DEFAULT '1' COMMENT '1=Active | 0=Inactive', `country_name` varchar( 50) CHARACTER SET utf8 NOT NULL, `country_id` int( 11) NOT NULL AUTO_INCREMENT, The following SQL creates a countries table in the MySQL database. The states table has a relation with the countries table and cities table has a relation with the states table. Also, there would be a relationship between countries, states, and cities table. To store the data of the country, state, and city, three tables are required in the database. Alike when a state is chosen, the respective cities will be fetched from the MySQL database and appear in the city dropdown.īefore getting started to build a dynamic dependent dropdown list with PHP and MySQL, take a look at the files structure. When a country is chosen, the respective states will be fetched from the MySQL database and appear in the state dropdown. The example code initially shows all countries in the country dropdown. Based on changing of country & state, respective state & city is fetched from the database without reloading the page using jQuery, Ajax, PHP, and MySQL. This means that the state is related to the country and the city is related to the state. In this tutorial, we will show you how to implement relational dropdown of country state city using jQuery, Ajax, PHP, and MySQL.
Using Ajax and PHP, you can easily implement dynamic dependent dropdown without page refresh.ĭynamic dependent dropdown is very useful to fetch dynamic relational data from the database and listed in the multiple select boxes.
Generally, the dynamic dependent select box is used to implement country state city dropdown functionality. Bases on the drop-down selection, the dependent data are retrieved from the database and display in the next select box. The dynamic dependent select box is used to auto-populate the dependent data in the dropdown list.
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