3v4l.org

run code in 300+ PHP versions simultaneously
<?php $firstName = "Harvey"; $middleName = "Joseph"; $lastName = "Glick"; $fullName = $firstName . " " . $middleName . " " . $lastName; echo preg_replace('/([A-Z])[a-z]+\h+/', '$1 ', $fullName);

preferences:
27.24 ms | 404 KiB | 5 Q