What symbol starts with when declaring variables in php?

Declaring variables in PHP starts with a dollar sign ($). Other considerations include: variables are case-sensitive, can only contain letters, numbers, and underscores, cannot start with a number or contain spaces/special characters, and cannot use reserved words as variable names.

Symbols for declaring variables in PHP

In PHP, variable names start with a dollar sign ($).

Example:

<code class="php">$name = "John";
$age = 30;</code>

Other notes:

• Variable names are case-sensitive, i.e. $name and $NAME is a different variable.
• Variable names can only contain letters, numbers, and underscores (_).
• Variable names cannot start with numbers.
• Variable names cannot contain spaces or special characters.
• Reserved words (such as true, false, null, etc.) cannot be used as variable names.

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