Join David Powers for an in-depth discussion in this video Processing the full-year records, part of Code Clinic: PHP.
…We've downloaded copies of the full year data for 2001 to 2010.…This is 2001.txt.…Line one is a series of headings and the data is stored in columns below.…But if we scroll across to the right, we…can see that the headings and the columns aren't aligned.…So we'll need to inspect the data in here a little…bit more closely before we can extract the data that we need.…If you click inside line one between any of the…headings and press the right arrow key you move one space…at a time, but if you click between two columns of…data and press the right arrow key, you jump right across.…
So that means we're dealing with tab separated data.…Lets create a script to start extracting the data so we need a new PHP file.…And we call process_years.php.…And I'll see that it's ended up in my RAW data folder, it needs to be in the…top level folder, so I'll move it to problem…one and then we can start work on the script.…First thing we need is variable for the year, we're going to…start with 2001 and then we need to open the file.…
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
Q: I'm encountering script errors message with the prime_dates.php file used in the "Priming the date_record column" movie in this course. How can I resolve these errors?
A: To avoid script errors, use bindValue() instead of bindParam() in
Line 9 of the prime_dates.php file. You can also download the latest
copy of the exercise files, which corrects this issue for you. For a
more in-depth explanation of the difference between bindValue() and
bindParam(), check out the "Binding input and output values" video (http://www.lynda.com/PHP-
Q: Why can't I access the Lake Pend Orielle site (http://lpo.dt.navy.mil)?
A: The Lake Pend Orielle site is not accessible in some geographical areas. We have contacted the owner of the server to try to resolve this issue.
Q: I am unable to access the Lake Pend Oreille data from outside the U.S.
A: A static copy of this data is provided here for lynda.com members outside of the U.S
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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