- strtotime: documentation ( source)
- gmdate: documentation ( source)
<?php
echo gmdate('d-m-y H:i:s',strtotime("January"))."\n";
echo gmdate('d-m-y H:i:s',strtotime("February"))."\n";
echo gmdate('d-m-y H:i:s',strtotime("March"))."\n";
echo gmdate('d-m-y H:i:s',strtotime("April"))."\n";
echo gmdate('d-m-y H:i:s',strtotime("May"))."\n";
echo gmdate('d-m-y H:i:s',strtotime("June"))."\n";