指令分割方式與C或者perl類似---每個語句有分號隔開。
結束標記(?>)同樣隱含語句的結束，因此下面的代碼是等價的
<?php
echo "This is a text";
?>
<?php echo "This is a test"?>
註釋：
php支持'c',c++和unix shell風格的註釋；例如：
<?php
echo "This is a test";//This is a one-line c++ style comment
/*This is a multi line comment
yet another line of comment*/
echo "This is yet another test";
echo "One Final Test";#This is shell-style style comment
?>
"單行"註釋僅僅註釋到行末或者當前的代碼塊，視乎哪個首先出現。
<h1>This is an <?php # echo "simple"?>example.</h1>
<p>The header above will say 'This is an example'.
小心不要嵌套'C'風格的註釋，當註釋大量的代碼時，可能犯該錯誤。
<?php
/*
echo "This is a test";/*This comment will cause a problem*/
*/
?>
單行註釋僅僅註釋到行末或者當前的php代碼塊