Exercises, examples and other material relating to training module H102. This topic is presented on public courses Deploying LAMP - Linux, Apache, MySQL, Perl/PHP
, Linux Web Server
, Learning to program in PHP
, PHP Programming
, Beginning PHP - weekend course / hobby / club / leisure users
How to write your first PHP web page, how to install it on your server, and how to test it.
|Articles and tips on this subject||updated|
|4074||A comment on comments in PHP|
It's vital when you write a program that you comment it well. That's so that your colleagues will understand later on what you have done (and why you have done it), and so that YOU can remember too. And it's because commenting is vital that every course we teach, from the very first program after "Hello ...
|3915||How does PHP work? |
From Learning to Program in PHP and PHP Programming - presented this week, and repeating at regular intervals - see schedule.
Let's say that I want a web page - with a single URL (Uniform Resource Locator / name) - to show up differently in my browser depending on how I run it ...
• I write the ...
|624||It's REALLY easy to add a little PHP|
I've taken to describing PHP and an "HTML++" language when I'm training. That's to show absolute newcomers to PHP that they can simple write a page of HTML, give it an extension such as .php, and it will function in exactly the way it always has for them.
Then, very gently, the newcomer can add in some ...
|2432||Using print_r in PHP to explore mysql database requests|
The print_r function in PHP lets you "print raw" the contents of a variable - great for debugging and far better that print which - if you pass it an array helpfully says Array
Embed your print_r into <pre> to </pre> tags ... so that you get a good display on your browser ... otherwise you'll ...
|1448||Question on division (Java) - Also Perl, PHP, Python ...|
What's the difference between % and /?
/ returns the result of a division
% returns the remainder when you do a division.
Divide 18 by 7 you get 2, with a remainder of 4 (i.e. 4 left over).
so 18/7 give 2, and 18%7 gives 4.
And from Tcl/Tk and Expect... you can see the float v integer considerations ...
Examples from our training material
|a1.html|| Date stamping a page automatically (for copyright and audit)|
|g2.php|| Multiple statements and functions calls|
|g3.php|| Multiple print statements, showing case insignificance of functions|
|greeting.php|| HTML page with embedded PHP|
PicturesLearning PHP for newcomers to programming
Some modules are available for download
as a sample of our material or under an Open Training Notes License
for free download from http://www.training-notes.co.uk
Topics covered in this module
Writing and uploading.
The structure of a PHP page.
Sequences of statements.
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