Monday, 27 March, 2023


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PHP document structure

PHP comments and PRINT command


Well, you’ve already configured your software and now are ready to learn PHP. All your PHP documents must be saved with the *.php extension. Be sure to ask your hosts which PHP version is installed on their server. If it is PHP3.0, then save your PHP documents with the *.php3 extension, or ask your hosts if they could upgrade.

PHP code is embedded in your HTML script.
Almost every PHP command is ended with a semi-colon (;).
Your PHP code must be enclosed within the “<?” and “?>” or “<?php” and “?>” brackets.

An example:


PRINT “<center>Hi! This is a PHP example.</center>”;


The output in your browser would be:

Hi! This is a PHP example.

Well, we used PHP PRINT command that outputs all statements enclosed in double quotations (“). Notice that we placed HTML commands <center>…</center> within the PRINT statement and the HTML code was interpreted by the browser.

Sometimes it is very useful to insert comments into your PHP documents. Use one of these commands:

/* This is a multi line comment. */
// Another way to comment your script. This is a one-line comment.
# One more one-line comment.

Well, let’s go to the next tutorial PHP variables.

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