Why is it important to avoid using spaces in variable names in PHP?

Using spaces in variable names in PHP is not allowed as it will result in a syntax error. To avoid this issue, it is important to use underscores or camelCase to separate words in variable names. This ensures that the variable names are valid and can be used without any errors in PHP code. 

// Incorrect variable name with spaces
$first name = "John";

// Correct variable name using underscores
$first_name = "John";

// Correct variable name using camelCase
$firstName = "John";

Keywords

spaces variable names PHP syntax errors

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