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Problems with validation logic

Problems with validation logic: PHP with MySQL Essential Training (2013)
Problems with validation logic: PHP with MySQL Essential Training (2013)

One way to solve problems with validation logic in MySQL is to experiment with false positives. PHP uses type juggling to compare two things that have a different type, and a quirk of the program is that it may say two strings are equal because they both start with spaces or plus signs. This online tutorial helps you learn to code for exact matches instead of equal matches, and for triple equals, not double equals.

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Skill Level Beginner
14h 32m
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Q: This course was revised on 6/4/2013. What changed?

A: The old version of this course was 6 years old and it was time for a complete revision, using PHP 5.4. (The tutorials will work with any version of PHP and covers any differences you might encounter). The author has also added updated installation instructions for Mac OS X Mountain Lion and Windows 8. The topics and end project are the same, but the code is slightly different. It also addresses frequently asked questions from the previous version.

Q: This course was updated on 5/20/2015. What changed?

A: We added one movie called "Changing the document root in Yosemite," which helps the Mac installation run more smoothly.

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