Join David Powers for an in-depth discussion in this video Building the web service response, part of Code Clinic: PHP.
…We've removed the final comma from each of the final data…strings and we now need to calculate the mean and median averages.…To do that we need a copy of the average class definition.…So let's go up to the top of the page podata.php.…Insert a couple of lines afer the opening php tag.…Then require once.…It's foundationphp/calculate/average.php.…Then use the use operator to import it, foundationphp\calculate\average…and we can assign it to an alias AVG.…
And we need to continue the script in…the conditional state where we left off, so scroll…back down again and the new code needs to go here on line 83 after we get wind.…We need to create three instances of the average class.…One for each set of data.…So I'll call it IR Sats equals new AVG using that alias.…The average class expects an array as it's argument.…
We don't have arrays yet, but we're not going to leave the…arrays for anything else, so we can build them directly in the constructor.…Using the explode function.…So explode, the delimiter that we are looking for is…
David introduces challenges and provides an overview of his solutions in PHP. Challenges include topics such as statistical analysis, searching directories for images, and accessing peripheral devices.
Visit other courses in the series to see how to solve the exact same challenges in languages like C#, C++, Java, Python, and Ruby.
Skill Level Intermediate
PHP with MySQL Essential Trainingwith Kevin Skoglund14h 32m Beginner
Exporting Data to Files with PHPwith David Powers3h 42m Intermediate
Problem One: Statistical Analysis
Problem Two: Image Analysis
Problem Three: Eight Queens
Problem Four: Accessing Peripherals
Problem Five: Recursion and Directories
Problem Six: Building the Web
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