A comment is text in a script that is ignored by the PHP engine. Comments can be used tomade code more readable or to annotate a script.
In PHP comment is two kinds
1. Single line comments.
2. Multiline comments.
1=> Single-line comments begin with two forward slasses(//) or a single hash sign(#) . All text from either of these marks until either the end of the line or the PHP close tag is ignored .
// This is a comment.
# This is a comment.
2=> Multiline comments begin with a forward slash followed by an asterisk(/*) and end with an asterisk followed by a foreard slash(*/) Like
/* This is a comment
none of this will
be parsed by the
PHP engine
*/
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