When `noopener noreferrer` was originally added in #37941 and related tickets, the `noreferrer` bit was specifically included due to Firefox not supporting `noopener` at the time.
Since `noopener` has been supported by all major browsers for a while, it should now be safe to remove the `noreferrer` attribute from core.
Props Mista-Flo, audrasjb, joostdevalk, jonoaldersonwp, peterwilsoncc, elgameel.
Fixes#49558.
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Using the canonical function name for PHP functions is strongly recommended, as aliases may be deprecated or removed without (much) warning.
This replaces all uses of the following:
* `join()` with `implode()`
* `sizeof()` with `count()`
* `is_writeable()` with `is_writable()`
* `doubleval()` with a `(float)` cast
In part, this is a follow-up to #47746.
Props jrf.
See #50767.
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The reason for introducing `wp_slash_strings_only()` in [46454] was to keep non-string values untouched.
Later, `wp_slash()` itself was updated in [48433] to prevent changing non-string values.
To avoid confusion, `wp_slash_strings_only()` is now deprecated.
Props ayeshrajans, ocean90.
Fixes#50635.
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This addresses a regression in [47808], which caused excerpts to be generated from post content if an empty string is passed, but not for other values considered empty, e.g. `null` or `false`.
Props riaanlom, laxman-prajapati, SergeyBiryukov.
Fixes#51042.
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There are two pieces in here:
1) The update to change blacklist to blocklist is moved to disallowed_list. "Block" has a meaning in our code, and there could be ambiguity between this code and code related to blocks.
2) This improves backwards compatibility for code that was accessing the now deprecated code.
Previously: [48477], [48405], [48400], [48121], [48122], [48124], [48142], [48566]
Props: desrosj, SergeyBiryukov, johnjamesjacoby
Fixes: #50413
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If a bool/float/int is passed into wp_slash it will be coerced into a string.
This changes the behavior to only slash strings. At the same time, handles recursion a little nicer by calling array_map for arrays.
Fixes#42195, #24106.
Props johnbillion, andizer, jrf, ryotasakamoto, SergeyBiryukov, donmhico, TobiasBg, markoheijnen, ryan, nacin, devesine, whyisjake.
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Since sanitize title is largely used for html attributes, or post slugs, make note that accents will be removed and that the string will be limited to alphanumeric characters, underscores, and dashes.
Fixes#33756.
Props ericlewis, swissspidy, wonderboymusic, psdtohtmlguru, DrewAPicture, SergeyBiryukov, sjmur, gma992, shulard, ebinnion, whyisjake.
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The filter is the callback function added with `add_filter()`, therefore the hook passes a value to the filter, and the filter returns a value to change its behaviour.
The documentation is referring to the latter.
Props johnbillion.
See #49572, #16557.
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“The WordPress open source community cares about diversity. We strive to maintain a welcoming environment where everyone can feel included.”
With this commit, all occurrences of “whitelist” and “blacklist” (with the single exception of the `$new_whitelist_options` global variable) are removed. A new ticket has been opened to explore renaming the `$new_whitelist_options` variable (#50434).
Changing to more specific names or rewording sentences containing these terms not only makes the code more inclusive, but also helps provide clarity. These terms are often ambiguous. What is being blocked or allowed is not always immediately clear. This can make it more difficult for non-native English speakers to read through the codebase.
Words matter. If one contributor feels more welcome because these terms are removed, this was worth the effort.
Props strangerstudios, jorbin, desrosj, joemcgill, timothyblynjacobs, ocean90, ayeshrajans, davidbaumwald, earnjam.
See #48900, #50434.
Fixes#50413.
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The tag was supported in phpDocumentor 1.x, but is no longer supported in 2.x and 3.x.
Usage of static variables is considered an internal implementation detail and has no information value for someone reading the docs.
Props alishanvr, jrf.
Fixes#50426.
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While web crawlers are able to discover pages from links within the site and from other sites, XML sitemaps supplement this approach by allowing crawlers to quickly and comprehensively identify all URLs included in the sitemap and learn other signals about those URLs using the associated metadata.
See https://make.wordpress.org/core/2020/06/10/merge-announcement-extensible-core-sitemaps/ for more details.
This feature exposes the sitemap index via `/wp-sitemap.xml` and exposes a variety of new filters and hooks for developers to modify the behavior. Users can disable sitemaps completely by turning off search engine visibility in WordPress admin.
This change also introduces a new `esc_xml()` function to escape strings for output in XML, as well as XML support to `wp_kses_normalize_entities()`.
Props Adrian McShane, afragen, adamsilverstein, casiepa, flixos90, garrett-eclipse, joemcgill, kburgoine, kraftbj, milana_cap, pacifika, pbiron, pfefferle, Ruxandra Gradina, swissspidy, szepeviktor, tangrufus, tweetythierry.
Fixes#50117.
See #3670. See #19998.
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Patches occasionally come in on generated files. We should be kind to new contributors and give them a hint that these files are auto-generated.
This is a follow-up to [41271], which added the banner to minified CSS files.
Fixes#48424. See #30666.
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Sergey Biryukov
Helen Hou-Sandí
desrosj
John Blackbourn
Aaron Jorbin
whyisjake
Pascal Birchler