指令分割方式与C或者perl类似---每个语句有分号隔开。
结束标记(?>)同样隐含语句的结束,因此下面的代码是等价的
<?php
echo "This is a text";
?>
<?php echo "This is a test"?>
注释:
php支持'c',c++和unix shell风格的注释;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
?>
"单行"注释仅仅注释到行末或者当前的代码块,视乎哪个首先出现。
<h2>This is an <?php # echo "simple"?>example.</h2>
<p>The header above will say 'This is an example'.
小心不要嵌套'C'风格的注释,当注释大量的代码时,可能犯该错误。
<?php
/*
echo "This is a test";/*This comment will cause a problem*/
*/
?>
单行注释仅仅注释到行末或者当前的php代码块