Archive for the 'PHP Class' Category « Previous Entries PHP - Object References Vs. Object Copies (Pass by reference or pass by copy) Friday, June 2nd, 2006 An important concept in programming is pointers. Even though we don’t directly use them in most modern languages the way we used to (think C/C++) they still come back to haunt us. In many modern languages they are referred to as references. References aren’t quite pointers, but they do resemble them enough to illustrate the […] Posted in PHP, PHP Class, Uncategorized | No Comments » PHP Tutorial - Lesson 13 Looping, looping, looping, looping, looping, looping, looping, looping… Friday, February 17th, 2006 There are 4 main concepts that you have to understand inside and out to be a good programmer. Variables Arrays Choices (if statements) Looping We have talked about variables (those named containers where we can store information) and we have talked about choices. We have also touched on arrays (remember $_GET and $_POST?). Remember arrays are variables that […] Posted in Database, MySQL, PHP Class | No Comments » PHP Tutorial - Lesson 12 Hello!? Are you there?! - Using the SELECT statement Monday, February 13th, 2006 This is both the easiest and most difficult of the four SQL statements. The SELECT statement. We have covered putting data in the database (INSERT), removing data (DELETE), and changing data that already exists (UPDATE). Aside from the INSERT statement, which simply jams data into a table, you append a WHERE clause onto your […] Posted in Database, MySQL, PHP Class | No Comments » PHP Tutorial - Lesson 11 Just make it go away! - Using the DELETE statement Tuesday, January 31st, 2006 The next of the big four SQL statements that you need to master on this long and bumpy road is the DELETE statement. At some point, a customer will leave, or an item will permanently go out of stock or some other reason will pop up where you will need to remove data that […] Posted in Database, MySQL, PHP Class | No Comments » PHP Tutorial - Lesson 10 Ooops… I messed up, can I start over? - Using the UPDATE statement Tuesday, January 24th, 2006 We always have to make changes. In fact, I think that is one of the first things that people quote as an advantage of using computers, “it’s easy to change!”. That is right up there with “these are real time savers!”. Your mileage will vary I am sure… Information in the database is easy to […] Posted in MySQL, PHP Class | No Comments » « Previous Entries

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