PHP Notice: Undefined index: path in /wp-includes/functions.php on line 905

[jbouganim]

Some URLs here do not have a 'path' and thus throw this notice.
Instead of only checking on /wp-includes/functions.php L904:

<?php
if ( false !== $url_parts )

should also check

<?php
if ( false !== $url_parts && !empty($url_parts['path']) )

[mukesh27]

Initial patch.

[mukesh27]

Hi, @jbouganim,

Welcome to WordPress Trac! Thanks for the ticket.

Added initial patch as suggested.

[Otto42]

Can you provide an example of a URL that would not have a path component?

[jbouganim]

@Otto42 Sure.

<?php
$url_parts = parse_url("https://redirect.viglink.com?key=2fb2035e82f6fb61e704bd9&u=https%3A%2F%2Fwww.michaels.com%2Fsearch%3Fq%3Dbandana");

Will not have a path index.

[Otto42]

Great! So probably need some unit tests added to go with this as well.

[SergeyBiryukov]

In 48621:

Pings/Trackbacks: Avoid a PHP notice in do_enclose() when encountering a URL without a path in post content.

Props jbouganim, mukesh27, Otto42, SergeyBiryukov.
Fixes #49872.