- substr: documentation ( source)
- explode: documentation ( source)
<?php
$sMonthLabels = ["JAN", "FEB", "MAR", "APR", "MAY", "JUN", "JUL", "AUG", "SEP", "OCT", "NOV", "DEC"];
$aSplitDate = explode("-", "1993-03-23");
echo $aSplitDate[2] . $aMonthLabels[intval($aSplitDate[1]) - 1] . substr($aSplitDate[0]);
?>