Are there any best practices for automatically saving groups of variables in PHP?

When needing to automatically save groups of variables in PHP, one common approach is to use serialization. Serialization allows you to convert a complex data structure, such as an array or object, into a string that can be easily saved to a file or database. This string can later be deserialized back into its original form, allowing you to recreate the original variables. 

// Define the variables to be saved
$variable1 = 'value1';
$variable2 = 123;
$variable3 = ['a', 'b', 'c'];

// Serialize the variables
$serializedData = serialize([$variable1, $variable2, $variable3]);

// Save the serialized data to a file
file_put_contents('saved_variables.txt', $serializedData);

// To retrieve the variables later, you can unserialize the data
$loadedData = file_get_contents('saved_variables.txt');
[$loadedVariable1, $loadedVariable2, $loadedVariable3] = unserialize($loadedData);

// Now $loadedVariable1, $loadedVariable2, and $loadedVariable3 contain the original values

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