…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.…
Author
Updated
12/16/2014Released
7/15/2014David 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
Duration
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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
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Introduction
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Welcome1m 14s
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Using the exercise files1m 56s
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Problem One: Statistical Analysis
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Overview of my solution3m 22s
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Setting up the database4m 55s
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Processing the full-year records10m 49s
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Processing individual days6m 54s
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Keeping the data up to date4m 27s
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Creating a web service6m 21s
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Getting the required data6m 50s
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Problem Two: Image Analysis
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Identify the image subset3m 14s
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Overview of my solution3m 19s
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Setting up the files2m 43s
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Generating the thumbnails7m 49s
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Finding the cropped images7m 13s
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Problem Three: Eight Queens
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Overview of my solution3m 48s
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Rotating the chessboard4m 59s
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Problem Four: Accessing Peripherals
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Overview of my solution2m 1s
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Using the Web Audio API2m 47s
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Creating the tone generator7m 39s
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Problem Five: Recursion and Directories
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Overview of my solution3m 24s
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Finding the images5m 30s
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Extracting XMP metadata6m 22s
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Problem Six: Building the Web
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Building the web1m 47s
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Overview of my solution1m 50s
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Video: Processing the full-year records