- date: documentation ( source)
- str_pad: documentation ( source)
<?php
echo date('Y') . str_pad(03, 5, 0, STR_PAD_LEFT);echo "<br>";
echo date('Y') . str_pad(13, 5, 0, STR_PAD_LEFT);echo "<br>";
echo date('Y') . str_pad(133, 5, 0, STR_PAD_LEFT);echo "<br>";
echo date('Y') . str_pad(1223, 5, 0, STR_PAD_LEFT);echo "<br>";
echo date('Y') . str_pad(22213, 5, 0, STR_PAD_LEFT);echo "<br>";