2009

We are using MySQL, help save it

Posted by Daniel at 3:27 pm

I, Michael “Monty” Widenius, the creator of MySQL, is asking you urgently to help save MySQL from Oracle’s clutches. Without your immediate help Oracle might get to own MySQL any day now. By writing to the European Commission (EC) you can support this cause and help secure the future development of the product MySQL as an Open Source project.

What this text is about:
- Summary of what is happening
- What Oracle has not promised
- Oracles past behavior with Open Source
- Help spread this information (Jump to ‘What I want to ask you to do’)
- Example of email to send to the commission (Jump to ‘send this to:’) Keep Reading…

PHP Operators: The === Operator

Posted by Daniel at 2:17 am

PHP’s === Operator enables you to compare or test variables for both equality and type. Refer below for example.

<?php
//define variables..
$str = '9';
$int = 9;

//Returns true since both variable contains the same value..
$res = ($str==$int);

//Returns false since the two variables are not of the same type..
$res = ($str===$int);
?>

PHP Operators : Using Comparison Operators

Posted by Daniel at 5:28 pm

To compare php variables to determine whether they are the same or different.. you can use PHP Comparison Operators. See below for a list of examples..

I. Define the Variables

<?php
$num1 = 9;
$num2 = 9;
$num3 = 22;
?>

A. The Less Than Operator

<?php
//Returns true if variable in the left side is less than the right..
$res = ($num1 < $num3);
//returns true..
?>

Keep Reading…

PHP Operators: Using String Concatenation Operator

Posted by Daniel at 11:03 pm

You can concatenate or add strings together using the PHP string concatenation operator represented by the period sign ( . ). refer to the examples below.

<?php
// intialize variables
$username = "daniel";
$domain = "danieldumas.com";

// the variable string $username and $domain can be combine using the concatenation operator
$email_address = $username . '@'. $domain;

//the variable $email_address now contains the value "daniel@danieldumas.com"

?>

You can also concatenate simultaneously. . Keep Reading…

PHP Operators : Using Arithmetic Operators

Posted by Daniel at 12:37 pm

Using Arithmetic Operators in PHP you can perform mathematical operations on PHP variables. refer to the example below.

Using PHP Arithmetic Operator

//define variables
<?php

$num1 = 50;
$num2 = 30;

//Addition
$sum = $num1 + $num2;

//Subtraction
$difference = $num1 - $num2;

//Multiplication
$product = $num1*$num2;

//Division
$quotient = $num1 / $num2;

//Modulus
$remainder = $num1 % $num2;

?>

you may also use the shorthand using the PHP Assignment Operator and Arithmetic Operator together. Keep Reading…