Join David Powers for an in-depth discussion in this video Finding the cropped images, part of Code Clinic: PHP.
-To find images that have been cropped from others,…we need to loop through the thumbnails,…and pass them in pairs to the find sub-image…function that was described in the previous video.…I'm back in the main script in find underscore…cropped dot php, and we need to include…that function definition.…So at the top of the page, require once.…It's includes sub-image underscore search…dot php, and the rest of the code needs to go…down at the bottom of the page, just…before this end micro-time.…
So let's add in a few lines, give ourselves…a little bit of space, and when we find a…sub-image, I'm going to store its details…in a multi-dimensional array.…I'll initialize that now.…So that'll be called pirated,…and because it's a multi-dimensional array,…I need a counter.…I'll call that P and initialize it to zero.…Each time we loop through the thumbnails,…I'm going to remove an image from the…re-sized array, and use it as a reference…to compare other images against.…
So we'll have a while loop and the condition…will be count and re-sized greater than one.…
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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