| Re: variable replacement in string [message #178011 is a reply to message #178002] |
Thu, 10 May 2012 14:10   |
Sandman
Messages: 32
Registered: August 2011
Karma:
|
Member |
|
|
In article <a11rgoFph0U1(at)mid(dot)uni-berlin(dot)de>,
"M. Strobel" <sorry_no_mail_here(at)nowhere(dot)dee> wrote:
> Hi,
>
> I am still searching a function in PHP to execute variable replacement in
> strings.
> Other languages do have this, but for PHP I can only find sprintf() and
> string replace.
>
> I have
>
> $t = ' - solved - ';
> $msg = 'The problem is $t';
>
> I want now:
>
> echo fxx($msg);
>
> print out "The problem is - solved - ".
>
> Please don't tell me about $msg = "The problem is $t"; just think of $msg
> like a
> template read from a file.
>
> /Str.
Before coding PHP I used Roxen and their "RXML" language, which was
pretyt much just fancy HTML (RXML stood for Roxen Markup Language) and
they had variable templating in strings. When moving to PHP I missed
this.
So I have this templet string for headline formatting in blog posts
(for instance):
$template = "<h2>#headline#</h2>
#date#, <span class='subline'>#category#</span>";
And then I have an array with the blog post:
$article = array(
"headline" => "Hello world!",
"date" => "2012-04-23",
"category" => "Fun stuff"
);
And I have this function I call "parserxml()" which is "Parse rxml"
not "parser xml" :)
function parserxml($string, $var = false) {
# RXML 1.0
$string = preg_replace("/#([a-z]+)#/se", "\$var['\\1']",
$string);
# RXML 2.0
if (preg_match_all("/&([a-z_A-Z]+)\./i", $string, $matches)) {
foreach($matches[1] as $m) {
global $$m;
}
$string =
preg_replace("/&([a-zA-Z_]+)\.([a-zA-Z_]+);/sei", "\${\\1}['\\2']",
$string);
}
return $string;
}
Which I use as such:
print parserxml($template, $article);
You may also note that there is support for "RXML 2.0" in that
function as well, which used a slightly different syntax that could
define scope as well:
$template = "<h2>#headline#</h2>&user.name;"
The second part would globalize $user and replace that with
$user["name"].
--
Sandman[.net]
|
|
|
|
Calendar
Search
Help
Members
Register
Login
Home
]