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preg-match

Warning: preg_match(): Compilation failed: nothing to repeat at offset 6

I would like to parse the following DocBlock / comment with regex. Code below

$subject = <<<HTML
/**
Theme Name: Hello world
*/
HTML;

$pattern = '/^\/(?:*)+Theme Name:(\s)?([\w]+)/';

preg_match($pattern, $subject, $matches);

print_r($matches);

Running the code output the following error..

Warning: preg_match(): Compilation failed: nothing to repeat at offset 6 in C:\xampp\htdocs\blog\test.php on line 11

Solution

  • * in the (?:*) means 0 or more times.

    Do you mean \*?

    https://www.regex101.com/r/vH7lB3/1

    Note that I also added \s* before Theme to match the new line character and spaces