Operators are the things that assign, compare and combine values.
The equals = symbol is used to assign a value to something.
$StringName = "This value."
The string called $StringName has been assigned (now contains) the phrase This value.
Comparison operators will take two values, compare them, and continue on depending on a TRUE or FALSE result. These types of comparisons will be very useful for if/else statements and other loops.
| == |
is equal to |
| != |
is not equal to |
| < |
is less than |
| > |
is greather than |
| <= |
is less than or equal to |
| >= |
is greather than or equal to |
The last batch of operators are known as logical operators. They will usually take two of the comparison operator conditions (above) and compares them to each other.
Sounds a bit confusing doesn't it? Don't worry, it shall all become clear as you go through the various pages following.
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Article by David Stanley. Visit his site http://www.htmlite.com. Reprinted with permission.
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