heredoc and nowdoc usage and differences in php7

 heredoc和nowdoc是什么，怎么用，他们之间的区别是什么，下面来为您介绍一下php7中的heredoc和nowdoc用法和区别。

     $str=>>>EOF
         <H1>WWW.96NET.COM.CN</H1>
             <P align="center">这是heredoc</P>

EOF;

heredoc equivalent double quotes, single quotes nowdoc equivalent, so the use heredoc no need to worry about which character, does not need to add complex transfer image as a string of characters.