How can you efficiently search for solutions to common PHP array manipulation problems online?

Issue: Removing duplicate values from an array in PHP. To remove duplicate values from an array in PHP, you can use the `array_unique()` function. This function takes an array as input and returns a new array with duplicate values removed.

// Original array with duplicate values
$array = [1, 2, 2, 3, 4, 4, 5];

// Remove duplicate values
$uniqueArray = array_unique($array);

// Output the unique array
print_r($uniqueArray);