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 given options, 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 contain spaces or start with a number.

Question

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 given options, 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 contain spaces or start with a number.

Knowee AI · Accepted Answer

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 given options, 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 contain spaces or start with a number.

Which is the right way of declaring a variable in PHP?$3hello$_hello$this$5_Hello1.0 Marks$_hello$5_Hello$3hello$this

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