How can the PHP manual be effectively used to understand and implement variable variables in PHP?

To understand and implement variable variables in PHP, one can refer to the PHP manual for detailed explanations and examples. By reading the manual, one can learn how to create and manipulate variable variables, which are variables that can be used to dynamically create variable names and access their values. 

// Example of using variable variables in PHP
$variable = 'hello';
$var_name = 'variable';
echo $$var_name; // Output: hello

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PHP manual variable variables implementation understanding usage

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