The issue: Often used simple constructs can waste a valid amount of time
The solution: Simple optimizations can save a lot of time
<?php
echo 'Hello
world.'
;
echo 
"Hello\nworld.";
?>
<?php
echo 'Hello'$world;
echo 
'Hello ' $world;
?>
<?php
for ($i 0$i 1000$i++);
for (
$i 0$i 1000; ++$i);
?>