Preg_match多个实例重用分隔符

Question

I've revised the question as I did not explain correctly the first time.

Can someone please help me with this regex. I can't seem to figure out how to use the same delimeter as the end of one match and then reuse as the start of the next.

In the following code I'm trying to match everything in between each delimiter_test statement.

$string = "

delimiter_test this is a test
this is more data,etc
delimiter_test this is another test
and this is more data
delimiter_test this yet another test
and this is even more data

";

Here is the regex I've tried:

preg_match_all('/delimiter_test(.*?)delimiter_test/s', $string, $matches);

And here are my results:

Array
(
    [0] => Array
        (
            [0] => delimiter_test this is a test
this is more data,etc
delimiter_test
        )

    [1] => Array
        (
            [0] =>  this is a test
this is more data,etc

        )

)

So it only gets what is between the first and second 'delimiter_test'.

Hopefully that makes sense.

Thanks, Max

Thanks, Max

Answer 1

Updated answer:

You can use Lookarounds to achieve this.

preg_match_all('/(?<=delimiter_test).*?(?=delimiter_test|$)/s', $string, $matches);
print_r($matches[0]);

Working Demo