Which is the right way of declaring a variable in PHP?$3hello$_hello$this$5_Hello1.0 Marks$_hello$5_Hello$3hello$this
Question
Which is the right way of declaring a variable in PHP?
$3hello$ $_hello$ $this$ $5_Hello
1.0 Marks
$_hello$ $5_Hello$ $3hello$this
Solution
In PHP, a variable starts with the $ sign, followed by the name of the variable. The variable name must begin with a letter or the underscore character. A variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ ).
From the options you provided, the correct ways to declare a variable in PHP are:
- $_hello
- $this
The other options are incorrect because:
- $3hello: A variable name cannot start with a number.
- $5_Hello: A variable name cannot start with a number.
- 1.0 Marks: A variable name cannot start with a number and it cannot contain spaces.
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