> -----Original Message----- > From: Dave Wilson [mailto:dai_bach24@xxxxxxxxxxx] > Sent: Wednesday, July 06, 2011 10:11 AM > To: php-general@xxxxxxxxxxxxx > Subject: Re: Constants in strings > > On Wed, 06 Jul 2011 12:56:21 +0100, Stuart Dallas wrote: > > My guess is that the preceding $ causes PHP to interpret the next > token > > "{XYZ}" as a variable or a constant, but without that preceding $ it > has > > no way to know you're trying to use a constant. As Curtis points out, > > the only way to insert a constant into a string is through > > concatenation. > > > > -Stuart > > OK. I should have made myself clearer - I was making an observation > with > regards to constant parsing in strings rather than looking for advice. > My > bad. > > My third example showed that "{${XYZ}}" would echo the value of the > variable called the value of XYZ: > <?php > define ('XYZ','ABC'); > > $ABC="huh!"; > > echo "{${XYZ}}\n"; > ?> > Output - huh! > > We could easily re-write the 'echo' line above to be: > echo "{${constant('XYZ'}}\n"; > > But my example shows that PHP *is* accessing the value of a constant > without any jiggery-pokery or hacks (e.g. http://www.php.net/manual/en/ > language.types.string.php#91628) as it is retrieving the value of ABC > from the XYZ constant and then looking for a variable of that name. > > I admit that I'm no C coder but it may be possible (note, the word > "may") > that a change of code within the PHP source tree will allow us to use > something like echo "{{XYZ}}" to access the constant value. > > Cheers > > Dave > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php define('DIR_JAVA', '/js/'); When you need to use the JavaScript directory you can do this. <script src="<?php echo DIR_JAVA . 'jquery-1.5.1.js';?>"></script> There is no true need for the curly brackets to echo out the value of the constant. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
