PHP text generation
The PHP programming language provides a keyword named echo
which generates text.
In a PHP-based web application, text generated by echo
becomes part of the response that the web server return to the client.
Contents
echo
A simple echo
:
<?php echo "Hello World"; ?>
echo multiple parameters
You can use echo
with multiple parameters, to combine text and PHP variables.
The example below uses two variables named $word1
and $word2
.
<?php $word1 = "Hello"; $word2 = "World"; echo $word1, " ", $word2; ?>
Shortcut syntax
PHP also provides a shortcut for echo
:
$msg = "Hello World"; This is HTML, lorem ipsum, <?= $msg ?>, more HTML etc.
Shortcuts may be unavailable (switch off) on some servers. Using shortcuts may not be best practice.
Using parentheses with echo ()
echo
is sometimes used with parentheses:
<?php echo ( "Hello World" ); ?>
This does not work when using multiple parameters.
There is no reason to prefer parentheses; they add nothing, so far as I have discovered.
PHP has has a print
statement, which behaves like echo
.
It offers no advantages over echo
, and is not commonly used.
See also
External links
- echo @ php.net