PHP programmers often use php short tag while scripting. If you do this it can make a problem if short open tag is not enabled in your php configuration. It's the best practice to always use the full tag (<?php...?>).
Instead of doing this:
<?
echo "My name is John";
?>
or
<?= "My name is John"; ?>
or
<% echo "My name is John"; %>
Write this way:
<?php
echo "My name is John";
?>
Instead of doing this:
<?
echo "My name is John";
?>
or
<?= "My name is John"; ?>
or
<% echo "My name is John"; %>
Write this way:
<?php
echo "My name is John";
?>
