Join David Powers for an in-depth discussion in this video Overview of my solution, part of Code Clinic: PHP.
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- This month's problem in Code Clinic can be broken down…into four simple tasks.…Inspect the file system to find the images,…extract the captions from the metadata…embedded in each image,…reorganize the files by moving them to a new directory…structure based on the first letter of the image's caption,…and display the results.…The first task is to find the images.…For the purposes of this exercise we're assuming…we don't know exactly where they are in the file system.…We're going to have to search each directory or folder…to find them.…
That calls for a recursive solution.…We can do recursion the hard way,…by creating a function like this.…The getImages function shown here takes a single argument,…the directory to be searched.…Internally it uses the scandir function to return an array…of the directories files and folders.…The array_diff function eliminates the dot files.…An irregular expression matches image filename extensions…and adds images to an array.…
Subdirectories are added to another array.…The second foreach loop inspects the subdirectories…
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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