Finding php string within string and save as variable

Question

If I had a string of text e.g:

<p>Hello world here is the latest news ##news?123## or click here to read more</p>

I want to look through the string and find anything starting with ##news? Then I want to save that and the id 123 and trailing hashes as a variable, so the final output would be:

$myvar == "##news?123##"

How can I use PHP to read that input string and save that specific part as a variable?

Professor Abronsius · Accepted Answer · 2015-10-26 16:30:34Z

3

preg_match is your friend for this sort of problem.

        $str='<p>Hello world here is the latest news ##news?123## or click here to read more';
        $pttn='@(##news\?(\d+)##)@';
        preg_match( $pttn, $str, $matches );

        $myvar=$matches[0];
        $id=$matches[2];

        echo $myvar.' '.$id;

answered Oct 26, 2015 at 16:30

Professor Abronsius

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1 Comment

Paul Bain Over a year ago

I think your pattern is probably better than mine :)

Paul Bain · Accepted Answer · 2015-10-26 16:30:23Z

2

Assuming you're not trying to parse HTML but as you say, just find any occurrence starting with "##news?" then you can use regex happily here:

$string = '<p>Hello world here is the latest news ##news?123## or click here to read more';
$matches = array();
preg_match_all("/(##news\?.*?)\s/",$string,$matches);
print_r($matches);

answered Oct 26, 2015 at 16:30

Paul Bain

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