PHP Operators - Assignment Operators
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We've already worked briefly with one of the assignment operators. Their basic function is to assign a value to a variable.
<html>
<body>
<?php
$example_variable = “An example”;
$number_variable = 1;
?>
</body>
</html>
Spark your memory? In addition to using the = operator, you can also add a value to your variable and reassign it the new value. Like this:
<html>
<body>
<?php
$initial_value = 10;
$initial_value +=;
?>
</body>
</html>
In the above example the variable $initial_value is set to 10. Then we take the value of $initial_value and add it to itself. The line $initial_value += is the same as writing $initial_value + $initial_value. Since the value is originally set at 10, the value is now 20.
It works the same with the rest of the assignment operators. If you had used the *= operator, it would have multiplied $initial_value by itself and resulted in the new value of 100.
Next: Arithmetic Operators >>
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