Lectures#3
Hi!guys today i want to talk about the Variables of the PHP......................................
so here we go..........................................................................
PHP variables like a constraints use for sorting information....
see example below..................................................................................
<?php
$a=10;
$b=5;
$c=$a+$b;
echo $c;
?>
echo is used for print purpose...................
It is related to................algebra
like a=10;
b=5;
c=a+b;
c=15 Result
- A variable start with the sign $ followed by the variable like $a
- A variable name must start with letter or the underscore character
- Variable contain alpha numeric character and underscore character
- A variable name does not contain space
- Variable names are case sensitive ($a and $A)
Declaring PHP variable
It is not a command for declaring variable...
variable is created as
$s="text-here";
$a=5;
Above the two variable is declare
when $s is executed then text-here value is print
and when $a is executed then value is 5..........
PHP Variables Scopes
- Local
- Global
- Static
- Parameter
To be continued ......................................
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Thanks
