Are there any best practices in PHP programming that could improve the efficiency of the code snippet?

Issue: One way to improve the efficiency of PHP code is to use isset() function to check if a variable is set before using it. This can prevent unnecessary errors or warnings when trying to access a variable that has not been initialized. Code snippet: 

// Check if the variable $name is set before using it
if(isset($name)) {
    echo "Hello, $name!";
} else {
    echo "Name not set";
}

Keywords

PHP programming efficiency code snippet optimization best practices

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