Search results for: "graph manipulation"

How can the imageline function in PHP be utilized to draw lines on a graph?

To draw lines on a graph using the imageline function in PHP, you need to provide the coordinates of the starting point and ending point of the line....

How can PHP be used to round numbers in intervals of 5 for graph scaling purposes?

When scaling numbers for a graph, it is often useful to round them to the nearest interval, such as intervals of 5. This can be achieved in PHP by usi...

How did the user extract data from a log file to plot temperature sensor values on the graph using PHP and JPGraph?

To extract data from a log file to plot temperature sensor values on a graph using PHP and JPGraph, you can read the log file line by line, extract th...

How can PHP be used to retrieve values from a MySQL database and display them in a JavaScript graph?

To retrieve values from a MySQL database and display them in a JavaScript graph, you can use PHP to query the database, fetch the results, and then en...

How can PHP developers effectively troubleshoot issues related to displaying graph data in JPchart using SQL variables?

To troubleshoot issues related to displaying graph data in JPchart using SQL variables, PHP developers can start by checking the SQL query to ensure i...