Join David Powers for an in-depth discussion in this video Inserting the full-year data into the database, part of Code Clinic: PHP.
…Now that we have primed the database with dates from January 2001…to late May 2010, we can populate the database with the environmental data.…So let's go back to the editing program, and…we are going to need to connect to the database.…So, we'll copy this database connection from prime_dates.php,…and then go back to process_years.php.…You need to have a try and catch block, so try top and the catch block goes…right down at the bottom, and then we'll just tidy this up by indenting.…
And then paste in the database connection at the top.…Next we'll have a prepared statement, we'll store that as stmt.…Use the database connection and the prepare method, and…then I'm going to paste into here, a prepared statement.…You can find a copy of the prepared statement…in query.txt in the exercise files for this video.…And if we just tidy that up, we can then look at what that prepared statement does.…
It's an update statement.…It's updating the environmental data table, and it's setting the values for…air_temp, bar_press, wind_speed, and it's using a where clause date_recorded.…
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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