Area Chart with data from MySQL database table and CSV file using PHP pdo and google chart library

Previous parts we discussed about various charts by using data sources from MySQL and CSV files with different options.
Basic tutorial

Here we will first collect the data from MySQL table by using Php data object ( PDO ) , inside the zip file which you can download from the above URL you can see pages for mysqli connection and data retrieval.
Data is taken out of MySQL table by using query and executing the same through PDO. After getting the data as an array in PHP the same will be transferred to JavaScript array by using Json function.
After getting the JavaScript array the same will be used to add data to our google area chart.

Finally the chart is drawn by using a div tag as explained in the first tutorial. We can change the options to customize the chart based on our requirements.
Options
We can create stacked area chart by setting the option isStacked:true
Google library to connect

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