How to connect to the database and display the numbered content and images from the drop-down menu?

How to connect to the database and display numbers, images, etc. & lt; div & nbsp; & gt; & lt; form & nbsp; actionselect1.php & nbsp; methodget & gt; & lt; select & nbsp; nameposition & nbsp; & gt; & how to connect to the database to display numbered content and images

Project Type:1. Traffic Engineering2. Traffic Engineeering-GBP3. ic Engineering4. Traffic Study 5. TTA 6. Traffic Engine Lease 7. Traffic Engineeering-GBP 8. Traffic Forecasting
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Select the fields from the database, and then output the list items in a for loop.
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Check the third-level linkage
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One drop-down menu transfers one data
Two data entries are uploaded from the drop-down menu.
And so on

Php filters databases based on input data and has no direct relationship with the data source.