i have following string in $subject variable
<p>{{headline}}</p>
And i have a variable$headline="Hello World"
As you guess i want to replace {{headline}} With Hello World using preg-replace.
Method must be dynamic, because it's just an example for headline.
$vars = array(
'headline' => 'foo'
);
echo preg_replace_callback('/\{\{(\w+)\}\}/', function (array $m) use ($vars) {
return $vars[$m[1]];
}, '<p>{{headline}}</p>');
You might really want to look into an existing templating system with a similar syntax but based on a proper parser though, like http://twig.sensiolabs.org. Mustache also basically already does the same thing.
