How can one efficiently store array keys in individual variables for later use in PHP?

When working with arrays in PHP, it may be useful to store array keys in individual variables for easier access and manipulation later on. One efficient way to achieve this is by using the `array_keys()` function to retrieve all the keys of an array and then assigning them to separate variables using list(). 

// Sample array
$array = ['key1' => 'value1', 'key2' => 'value2', 'key3' => 'value3'];

// Get array keys
$keys = array_keys($array);

// Assign keys to individual variables
list($key1, $key2, $key3) = $keys;

// Now $key1, $key2, and $key3 hold the respective keys 'key1', 'key2', and 'key3'

Keywords

PHP array keys variables foreach loop data storage

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