Parse error: syntax error, unexpected '']?)(" ' (T_CONSTANT_ENCAPSED_STRING)

Question

I've tried to fix an error in Wordpress backend for WPML plugin with this suggestion: https://wpml.org/errata/product-variations-not-display-variation-original-language/

It didn't work and now I get this error:

Parse error: syntax error, unexpected '']?)(" ' (T_CONSTANT_ENCAPSED_STRING) in /home/sweetcelebration.nl/public_html/sweetcelebration.nl/wp-includes/functions.php on line 527

I pasted the code in the beginning of functions.php and removed it when it didn't work. I didn't touch this part of the code, so I'm not sure why this now appears.

function wp_extract_urls( $content ) {
    preg_match_all(
        "#(["']?)("
            . "(?:([w-]+:)?//?)"
            . "[^s()<>]+"
            . "[.]"
            . "(?:"
                . "([wd]+)|"
                . "(?:"
                    . "[^`!()[]{};:'".,<>«»“”‘’s]|"
                    . "(?:[:]d+)?/?"
                . ")+"
            . ")"
        . ")1#",
        $content,
        $post_links
    );

    $post_links = array_unique( array_map( 'html_entity_decode', $post_links[2] ) );
    return array_values( $post_links );
}

Line 527 is

. "[^`!()[]{};:'".,<>«»“”‘’s]|"

I'm sorry if this is stupid question. I did read other similar questions that were asked before, but didn't find my answer. I'm really hoping someone here can help me. Thank you in advance!

You have to escape the quote character inside the regex. It is parsed as string literal ending. — MC Emperor, Apr 16 '17 at 19:54

Dygnus · Answer 1 · 2017-04-16T19:59:06.423

You should escape all " characters (being part of the regex itself) with a backslash:

"#(["']?)("

becomes

"#([\"']?)("

And:

. "[^`!()[]{};:'".,<>«»“”‘’s]|"

becomes:

. "[^`!()[]{};:'\".,<>«»“”‘’s]|"

This should solve it:

preg_match_all(
    "#([\"']?)("
        . "(?:([w-]+:)?//?)"
        . "[^s()<>]+"
        . "[.]"
        . "(?:"
            . "([wd]+)|"
            . "(?:"
                . "[^`!()[]{};:'\".,<>«»“”‘’s]|"
                . "(?:[:]d+)?/?"
            . ")+"
        . ")"
    . ")1#",
    $content,
    $post_links
);

score 0 · Answer 2 · answered Apr 16 '17 at 19:54

0

The interstitial " marks in that line need to be escaped. E.g.:

. "[^`!()[]{};:'\".,<>«»“”‘’s]|"

answered Apr 16 '17 at 19:54

Phl3tch

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Parse error: syntax error, unexpected '']?)(" ' (T_CONSTANT_ENCAPSED_STRING)

2 Answers2