I want to display content in a php page from a .txt and change some tag to a html code like the following using:
Change this:
[img: something.jpg]
To this:
<img src="something.jpg" />
I've tried to use preg_replace, but I have no idea how to use those symbols like /(){}^*.:.
What it means to use things like this to extract some variables $1 $2 from a string?
$string = 'April 15, 2003';
$pattern = '/(\w+) (\d+), (\d+)/i';
分享 You can use the following regex like as
\[(\w+):\s?(\w+.\w+)]
Regex Explanation
\[ : \[ will check for [ literally.(\w+): : (\w+) Capturing groups of any word character [a-zA-Z0-9_]. + Between one and unlimited times, as many times as possible, : will check for : literally\s? : match any white space character [
\t\f ]. ? Between zero and one time, as many times as possible(\w+.\w+) : Capturing group of any word character [a-zA-Z0-9_]
So using preg_replace like as
echo preg_replace('/\[(\w+):\s?(\w+.\w+)]/',"<$1 src='$2' />","[img: something.jpg]");
