April 6, 2012
Interpolate constant (not variable) into heredoc?
Question by Michael
<?php
define('my_const', 100);
echo <<<MYECHO
<p>The value of my_const is {my_const}.</p>
MYECHO;
?>
If i put a variable inside the braces it prints out. But not the constant. How can I do it?
Thank’s!
Answer by Starx
Use sprintf()
define('my_const', 100);
$string = <<< heredoc
<p>The value of my_const is %s.</p>
heredoc;
$string = sprintf($string, my_const);
