What does a variable in php start with?

In PHP, variables start with a dollar sign ($). Declare a variable using the dollar sign followed by the variable name, such as $name = "John Doe". Variable naming rules: start with a letter or underscore, only letters, numbers and underscores are allowed, case-sensitive, keywords cannot be used. Best practice: Use meaningful variable names and use camelCase or underscore delimiters for multiple word variables.

What do PHP variables begin with?

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

Detailed explanation:

In PHP, variables store data and are used to reference and manipulate data in scripts. To declare a variable, use the dollar sign followed by the variable name.

For example:

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

The above code declares two variables: $name and $age. $name stores the string value "John Doe", while $age stores the integer value 30.

Variable naming rules:

• Variable names must start with a letter or an underscore.
• cannot start with a number.
• Only letters, numbers and underscores are allowed.
• case sensitive.
• You cannot use keywords as variable names.

Best Practice:

• Use meaningful variable names that reflect the data they contain.
• For multiple word variables, use camelCase or underscore delimiters, such as $myName or $my_name.
• Keep variable names short and easy to understand.

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