get_previous_posts_link: Capital HTML entity

[ounziw]

get_previous_posts_link (located in wp-includes/link-template.php ) has a regular expression at line 1569

preg_replace( '/&([^#])(?![a-z]{1,8};)/', '&$1', $label )

This replaces ⇐ into ⇐, hence ⇐ is not allowed as a linktext. (html entites with capital letter(s) disallowed)

get_next_posts_link (also located in wp-includes/link-template.php ) has a regular expression at line 1498

preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $label)

This does not replace ⇐

I propose to use

preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $label)

both get_next_posts_link and get_previous_posts_link

[SergeyBiryukov]

Looks like this was missed in [13922]. I guess it would make sense to be consistent.

[duck_]

In [20537]:

Handle uppercase HTML entities in get_previous_posts_link(). Props ounziw. See #4152, fixes #19803.