How can PHP be used to perform exponentiation calculations like $a^0.52?

To perform exponentiation calculations like $a^0.52 in PHP, you can use the pow() function. This function takes two arguments, the base ($a) and the exponent (0.52 in this case), and returns the result of raising the base to the exponent power.

$a = 5;
$exponent = 0.52;
$result = pow($a, $exponent);

echo $result; // Output: 2.2360679774998