PHP-add comments

PHP -- add annotation PHP supports three types of annotation: 1.c++ style () annotation, which cannot appear? & Gt; flag. if the short_open and asp_tag settings are enabled, & gt; and % & gt; cannot appear in comments. & lt ;? PhpechoHello, PHP !; I am a comment, not executed? & Gt; 2. c language style, nesting comment not allowed & lt ;? Php PHP -- add comments

PHP supports three types of annotations.

1. C ++ style (//) annotations

This annotation cannot appear?> Flag. if the short_open and asp_tag settings are enabled,> and %> cannot appear in comments.

2. c language style, nesting comment not allowed

3. Shell style, similar to the ban on C ++