Join David Powers for an in-depth discussion in this video Dealing with different CSV formats, part of Code Clinic: PHP.
- The functions we've created work well,…but they won't work with every CSV file.…There's no single standard for CSV.…Although CSV is normally assumed…to mean comma-separated values,…it can also mean character-separated values.…In spite of being no single CSV standard,…all CSV files share common features.…Each field is separated by a delimeter character.…The comma is the most common,…but tabs and colons are also widely used as delimeters.…
Whichever character is used,…it must be the same throughout the file.…Fields can be enclosed in quotes.…These are optional unless the field contains line breaks…or the same character as the delimeter.…Double quotes are normally used,…but single quotes are also acceptable.…If a field contains quotes,…the quotes need to be escaped.…This is normally done by proceeding the quotes…with another quotation mark,…but a different escape character is sometimes used.…
The effect of these inconsistencies…is demonstrated by this file cars_table.php.…You can find this file and/or related files…
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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