Embedding PHP in HTML
You embed PHP code into a standard HTML page. For example, here’s how you can dynamically generate the title of an HTML document:
<html><head><title><?echo $title?></title> </head>...
The <?echo $title?> portion of the document
is replaced by the contents of the $title PHP
variable. echo is a basic language statement that
you can use to output data.
There are a few different ways that you can embed your PHP code. As
you just saw, you can put PHP code between <?
and ?> tags:
<? echo "Hello World"; ?>
This style is the most common way to embed PHP, but it is a problem
if your PHP code needs to co-exist with XML, as XML may use that
tagging style itself. If this is the case, turn off this style in the
php.ini file with the
short_open_tag directive. Another way to embed PHP
code is within <?php and
?> tags:
<?php echo "Hello World"; ?>
This style is always available and is recommended when your PHP code
needs to be portable to many different systems. Embedding PHP within
<script> tags is another style that is
always available:
<script language="php" > echo "Hello World"; </script>
One final style, in which the code is
between <% and %> tags,
is disabled by default:
<% echo "Hello World"; %>
You can turn on this style with the asp_tags
directive in your php.ini file. The style is
most useful when you are using Microsoft FrontPage or another HTML
authoring tool that prefers that tag style for HTML-embedded
scripts.
You can embed multiple statements by separating ...
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