I just can't see how one is going to
write a program without knowing how to create a variable.
Variable plays an essential role in many programming languages.
Well, not to start explaining the whole about
variable in this scenario, you'll better continue from below. Enjoy it.
What Is A Variable.
A variable is used to produce another value. Putting it in a casual form, a variable is like an alias name. They can be defined as a string or a numeric value.
Type Of Variables.
In PHP, a variable always starts with a dollar sign [$], followed by an equal sign [=] and then,
- A chosen word placed inside quotations ["String"].
- A number without quotations .
- As addition [5+10]
and all ending with a semicolon [; ].
See Illustration below.
<?php $a = "Test"; print $a; //This will print a string value [Test] using the variable $a
$num = 10; print $num; //This will print a Number value  using the variable $num $add = 5+10; print $add; //This will print an equal value of  or [5+10] using the variable $add ?>
Combining Variables' Values.
Values can also be combined using a period [.] this will reproduce another value.
Variables can also be used as values for a new variable.
See Illustration below.
<?php $a = 3; $b = 2; $c = $a.$b; //Now the variable $c sets its value to  using the values of $a and $b $d = $c + 10 ; echo $d; /*$d will echo a value of , because its vaule $c already has a value of  plus , bringing its new value to  */ $e = "Years"; $f = $d.$e; echo $f; //$f will echo a value of [42Years], blending numeric and string values. ?>
As you can see variables can be twisted and crushed into so many directions. Just look forward to some more variable examples. coming soon.
Variables | PHP.
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