When the logic to exclude images that likely appear above the fold from being lazy-loaded was introduced in WordPress 5.9, initially only images that appear within the main query loop were being considered. However, there is a good chance that images above the fold are rendered before the loop starts, for example in the header template part.
It is particularly common for a theme to display the featured image for a single post in the header. Based on HTTP Archive data from February 2023, the majority of LCP images that are still being lazy-loaded on WordPress sites use the `wp-post-image` class, i.e. are featured images.
This changeset enhances the logic in `wp_get_loading_attr_default()` to not lazy-load images that appear within or after the header template part and before the query loop, using a new `WP_Query::$before_loop` property.
For block themes, this was for the most part already addressed in [55318], however this enhancement implements the solution in a more generally applicable way that brings the improvement to classic themes as well.
Props thekt12, flixos90, spacedmonkey, costdev, zunaid321, mukesh27.
Fixes#58211.
See #53675, #56930.
Built from https://develop.svn.wordpress.org/trunk@55847
git-svn-id: http://core.svn.wordpress.org/trunk@55359 1a063a9b-81f0-0310-95a4-ce76da25c4cd
In order to skip lazy-loading the first few images on a page, as of WordPress 5.9 there has been logic to count images that are eligible based on certain criteria. One of those groups are images that appear within the content of a post.
This changeset fixes a bug where images created via `get_the_post_thumbnail()` or `wp_get_attachment_image()` that are injected into the post content would skew the count and therefore result in all images to be lazy-loaded, potentially hurting load time performance. This is relevant for example when those functions are called in server-side rendered blocks, or any other filter callbacks hooked into `the_content`.
Props flixos90, antpb, joedolson, spacedmonkey, mukesh27, thekt12, costdev, jrf.
Fixes#58089.
See #53675.
Built from https://develop.svn.wordpress.org/trunk@55825
git-svn-id: http://core.svn.wordpress.org/trunk@55337 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Since WordPress 5.9, a "context" value of "wp_get_attachment_image" has been used in the `wp_get_attachment_image()` function to provide context to underlying functions where that is relevant, e.g. `wp_get_loading_attr_default()`. Since that value used to be not customizable, it required a workaround in `get_the_post_thumbnail()` to avoid calling those functions in `wp_get_attachment_image()`, which resulted in unnecessary complexity and was prone to errors.
This changeset introduces a `wp_get_attachment_image_context` filter and leverages it with private filter callback functions that are leveraged by default when `get_the_post_thumbnail()` is called. This avoids the need for the previous workaround and furthermore provides flexibility for other callers of `wp_get_attachment_image()` to provide their own contexts.
Props flixos90, costdev, thekt12, westonruter, spacedmonkey.
Fixes#58212.
Built from https://develop.svn.wordpress.org/trunk@55821
git-svn-id: http://core.svn.wordpress.org/trunk@55333 1a063a9b-81f0-0310-95a4-ce76da25c4cd
The previous default threshold for how many content images to skip lazy-loading on (which was just 1) has proven to be too strict: HTTP Archive data shows that >70% of sites have up to 3 equal-sized images in the initial viewport, each of which could be the LCP image and therefore should not be lazy-loaded. Lazy-loading too many images has adverse effects on load time performance, while increasing the default threshold will not negatively affect load time performance even for sites where a threshold of 1 would be the perfect choice.
The change of default value in this changeset will improve performance for more WordPress sites out of the box. The `wp_omit_loading_attr_threshold` filter can still be used to customize and fine tune the value where needed.
Props thekt12, spacedmonkey, westonruter, flixos90.
Fixes#58213.
Built from https://develop.svn.wordpress.org/trunk@55816
git-svn-id: http://core.svn.wordpress.org/trunk@55328 1a063a9b-81f0-0310-95a4-ce76da25c4cd
`str_starts_with()` was introduced in PHP 8.0 to perform a case-sensitive check indicating if the string to search in (haystack) begins with the given substring (needle).
WordPress core includes a polyfill for `str_starts_with()` on PHP < 8.0 as of WordPress 5.9.
This commit replaces `0 === strpos( ... )` with `str_starts_with()` in core files, making the code more readable and consistent, as well as improving performance.
While `strpos()` is slightly faster than the polyfill on PHP < 8.0, `str_starts_with()` is noticeably faster on PHP 8.0+, as it is optimized to avoid unnecessarily searching along the whole haystack if it does not find the needle.
Follow-up to [52039], [52040], [52326].
Props spacedmonkey, costdev, sabernhardt, mukesh27, desrosj, jorbin, TobiasBg, ayeshrajans, lgadzhev, SergeyBiryukov.
Fixes#58012.
Built from https://develop.svn.wordpress.org/trunk@55703
git-svn-id: http://core.svn.wordpress.org/trunk@55215 1a063a9b-81f0-0310-95a4-ce76da25c4cd
[52065] originally introduced the logic to guess the LCP image based on certain heuristics and to not lazy-load that image. However, with the introduction of block themes, that logic was not functioning correctly, resulting in all featured images to be lazy-loaded, regardless of whether it was the LCP image or not.
Together with an update to the `core/post-featured-image` block included in [55079], this changeset fixes the logic to correctly handle featured images in block themes as well.
Additionally, in combination with an update to the `core/template-part` block from [55246], this changeset includes an enhancement which uses the benefits of block template parts to avoid lazy-loading images in the `header` block template part, making the lazy-loading heuristics even more accurate for sites using a block theme.
Props flixos90, adamsilverstein, mamaduka, antonvlasenko, shahidul95, reduanmasud, costdev, mukesh27, ironprogrammer, manfcarlo, robinwpdeveloper, spacedmonkey.
Fixes#56930.
Built from https://develop.svn.wordpress.org/trunk@55318
git-svn-id: http://core.svn.wordpress.org/trunk@54851 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This changeset improves the way quotation marks are handled in the Playlist template.
Follow-up to [27239], [33643 ].
Props hvar, Presskopp, sabernhardt, james-roberts, arrasel403, abidhasan112, robinwpdeveloper, costdev, mukesh27.
Fixes#50865.
Built from https://develop.svn.wordpress.org/trunk@55251
git-svn-id: http://core.svn.wordpress.org/trunk@54784 1a063a9b-81f0-0310-95a4-ce76da25c4cd
When adding `decoding="async"` to images was introduced in [53480], it did not provide the ability to customize that behavior specifically for image tags returned from `wp_get_attachment_image()`.
With this changeset it is now possible to explicitly provide a `decoding` value of e.g. boolean `false` in the `$attr` parameter of the function, to ensure the attribute is omitted.
Props maximej, adamsilverstein, flixos90, costdev, peterwilsoncc, mukesh27.
Fixes#57086.
Built from https://develop.svn.wordpress.org/trunk@55171
git-svn-id: http://core.svn.wordpress.org/trunk@54704 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Workaround `wp_img_tag_add_decoding_attr()` potentially breaking JavaScript and JSON data by limiting the addition of the decoding attribute to image tags using unescaped double quoted attributes `src` attributes.
Props rodricus, TimothyBlynJacobs, joelmadigan, mw108, adamsilverstein, flixos90, desrosj, mukesh27.
Fixes#56969.
Built from https://develop.svn.wordpress.org/trunk@54802
git-svn-id: http://core.svn.wordpress.org/trunk@54354 1a063a9b-81f0-0310-95a4-ce76da25c4cd
When the output format is altered with the `image_editor_output_format` filter, prefer the image engine that supports both input an output types, falling back to the engine that supports the input type.
Correct an issue where the output format filter wasn't respected because the selected engine didn't support the output format.
Props mikeschroder, ironprogrammer.
Fixes#54476.
Built from https://develop.svn.wordpress.org/trunk@54416
git-svn-id: http://core.svn.wordpress.org/trunk@53975 1a063a9b-81f0-0310-95a4-ce76da25c4cd
[54248] reversed the wrapping of `do_shortcode` and `apply_shortcodes` and updated all direct internal calls of `do_shortcode` to `apply_shortcodes` after [47004]. After further consideration, the long history of `do_shortcodes` should be favored over any subjective semantic improvements. This change reverts the remaining changes from #55883 not already reverted in [54278].
Follow-up to [47004], [54248], and [54278].
Props azaozz, jorbin.
See #55883.
Built from https://develop.svn.wordpress.org/trunk@54319
git-svn-id: http://core.svn.wordpress.org/trunk@53878 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This changeset reverses the wrapping of `apply_shortcodes()` and `do_shortcode()` such that `apply_shortcodes()` is now the recommended function. In addition:
- Calls to `do_shortcode()` have been changed to `apply_shortcodes()`.
- Some default filter callbacks have been changed from `'do_shortcode'` to `'apply_shortcodes'`.
- Applicable documentation has been updated to refer to `apply_shortcodes()` instead.
Follow-up to [47004].
Props SergeyBiryukov, rafiahmedd, namithjawahar, peterwilsoncc, costdev.
Fixes#55883.
Built from https://develop.svn.wordpress.org/trunk@54248
git-svn-id: http://core.svn.wordpress.org/trunk@53807 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This change allows for the muted property to be used in video elements which solves for content that wishes to `autoPlay` when a page is viewed. Adding `muted` to video elements adhears to the requirements browsers have to honor `autoPlay` functionality.
Props prokium, peterwilsoncc, costdev, johnbillion, Benouare.
Fixes#54788.
Built from https://develop.svn.wordpress.org/trunk@54128
git-svn-id: http://core.svn.wordpress.org/trunk@53687 1a063a9b-81f0-0310-95a4-ce76da25c4cd
The existing filter `image_editor_output_format` receives an additional parameter `$size_name` which is populated whenever it controls the output format for a specific registered image size to create. Otherwise, it remains empty. In order to achieve this, a low level change has been added in bringing a new `$size_name` class property to the `WP_Image_Editor` base class, which is introduced in a backward compatible way that will not cause conflicts with custom implementations.
This parameter is then used in new logic inside the `wp_default_image_output_mapping()` callback function for the filter, controlling whether `image/jpeg` should map to `image/webp` output or not. By default, this is enabled for all WordPress core image sizes by default, and this list can be modified using a new `wp_image_sizes_with_additional_mime_type_support` filter, e.g. to remove core sizes or add custom sizes.
The customization per image size may be further enhanced by providing a more declarative API via a new parameter on the `add_image_size()` function.
Props eugenemanuilov, flixos90, adamsilverstein, joegrainger.
Fixes#56526.
See #55443, #56288.
Built from https://develop.svn.wordpress.org/trunk@54097
git-svn-id: http://core.svn.wordpress.org/trunk@53656 1a063a9b-81f0-0310-95a4-ce76da25c4cd
While the `image_editor_output_format` filter is primarily used in WP Admin, it can also be executed in frontend scope, as the related `WP_Image_Editor` class and `wp_unique_filename()` function are being loaded in that scope.
Follow up to [54086].
See #55443, #56526.
Built from https://develop.svn.wordpress.org/trunk@54094
git-svn-id: http://core.svn.wordpress.org/trunk@53653 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This changeset adds the capability for core media uploads to generate sub sized images in more than a single mime type. The output formats for each mime type can be controlled through a filter. WebP is used as an additional output format for JPEG images by default to improve front end performance.
When generating additional mime types, only images which are smaller than the respective original are retained. By default, additional mime type images are only generated for the built-in core image sizes and any custom sizes that have opted in.
Image meta is updated with a new 'sources' array containing file details for each mime type. Each image size in the 'sizes' array also gets a new 'sources' array that contains the image file details for each mime type.
This change also increases image upload retries to accommodate additional image sizes. It also adds a `$mime_type` parameter to the `wp_get_missing_image_subsizes` function and filter.
This change adds three new filters to enable full control of secondary mime image generation and output:
* A new filter `wp_image_sizes_with_additional_mime_type_support` that filters the sizes that support secondary mime type output. Developers can use this to control the output of additional mime type sub-sized images on a per size basis.
* A new filter `wp_upload_image_mime_transforms` that filters the output mime types for a given input mime type. Developers can use this to control generation of additional mime types for a given input mime type or even override the original mime type.
* A new filter `wp_content_image_mimes` which controls image mime type output selection and order for frontend content. Developers can use this to control the mime type output preference order for content images. Content images inserted from the media library will use the available image versions based on the order from this filter.
Thanks to the many contributors who helped develop, test and give feedback on this feature.
A haiku to summarize:
Upload a JPEG
Images of all sizes
Output as WebPs
Props flixos90, MatthiasReinholz, studiolxv, markhowellsmead, eatingrules, pbiron, mukesh27, joegrainger, mehulkaklotar, tweetythierry, akshitsethi, peterwilsoncc, eugenemanuilov, mitogh, shetheliving, clarkeemily, codekraft, mikeschroder, clorith, kasparsd, spacedmonkey, trevorpfromsandee, jb510, scofennellgmailcom, seedsca, cagsmith, karinclimber, dainemawer, baxbridge, grapplerulrich, sobatkras, chynnabenton, tonylocalword, barneydavey, kwillmorth, garymatthews919, olliejones, imarkinteractive, jeffpaul, feastdesignco, webbeetle, masteradhoc.
See #55443.
Built from https://develop.svn.wordpress.org/trunk@53751
git-svn-id: http://core.svn.wordpress.org/trunk@53310 1a063a9b-81f0-0310-95a4-ce76da25c4cd
- Deprecate `wp_get_attachment_thumb_file()`.
- Make `wp_get_attachment_thumb_url()` an alias of `wp_get_attachment_image_url()`. This fixes it to return the proper thumbnail URL and fall back to returning the URL to `image_meta['thumb']` if only that exists.
Props: markhowellsmead, mukesh27, csesumonpro, SergeyBiryukov, mikeschroder, killua99, joemcgill, mashukushibiki, mfgmicha, swissspidy, romulodl, nacin, JoshuaAbenazer, wonderboymusic, lonnylot, azaozz.
Built from https://develop.svn.wordpress.org/trunk@53685
git-svn-id: http://core.svn.wordpress.org/trunk@53244 1a063a9b-81f0-0310-95a4-ce76da25c4cd
* Add a `@since` note for the `decoding` attribute in `wp_get_attachment_image()`.
* Adjust `wp_img_tag_add_decoding_attr()` DocBlocks per the documentation standards.
* Wrap some long `sprintf()` calls in unit tests for better readability. In at least one case, `the_content` was unnecessarily passed to `sprintf()` as an extra (unused) parameter.
Follow-up to [53480].
See #53232.
Built from https://develop.svn.wordpress.org/trunk@53481
git-svn-id: http://core.svn.wordpress.org/trunk@53070 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Dynamically add `decoding="async"` to image tags on the front end of a site to instruct browsers to download them in parallel.
Modifies `wp_get_attachment_image()`, `get_avatar()` to include the attribute by default. Modifies `wp_filter_content_tags()` to add the attribute during the front-end render of the site.
Introduces `wp_img_tag_add_decoding_attr()` to take an image tag and modify it to include the attribute. Introduces the filter `wp_img_tag_add_decoding_attr` used to define the default value for the attribute.
Props adamsilverstein, ayeshrajans, costdev, flixos90, hellofromtonya, isaumya, michaelbourne, mihai2u, mitogh, sergiomdgomes, spacedmonkey, westonruter, peterwilsoncc.
Fixes#53232.
Built from https://develop.svn.wordpress.org/trunk@53480
git-svn-id: http://core.svn.wordpress.org/trunk@53069 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This filter allows modifying individual `img` tags within a blob of content that are by default processed by the `wp_filter_content_tags()` function. The addition of this filter facilitates plugins that tweak images to accomplish this goal without re-implementing duplicate content image parser logic, which furthermore can have a negative performance impact due to additional regular expressions.
In addition to the filterable `img` tag, the filter receives the context (typically the function or filter in which the content is parsed) and the attachment ID. The latter may be 0, in case the image is not an attachment (for example when it is an external image URL).
Props adamsilverstein, flixos90, pbearne, peterwilsoncc.
Fixes#55347.
Built from https://develop.svn.wordpress.org/trunk@53028
git-svn-id: http://core.svn.wordpress.org/trunk@52617 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Store the file size of all newly uploaded attachments, as part of the metadata stored in post meta. Storing file size means, developers will not have to resort to doing `filesize` function calls, that can be time consuming on assets on offloaded to services like Amazon’s S3.
This change also introduces a new helper function called, `wp_filesize`. This is a wrapper around the `filesize` php function, that adds some helpful filters and ensures the return value is an integer.
Props Cybr, Spacedmonkey, SergeyBiryukov, johnwatkins0, swissspidy, desrosj, joemcgill, azaozz, antpb, adamsilverstein, uday17035.
Fixes#49412.
Built from https://develop.svn.wordpress.org/trunk@52837
git-svn-id: http://core.svn.wordpress.org/trunk@52426 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This change makes sure only gallery content is returned by `get_post_galleries()`. It fixes an issue where non gallery block content was also returned by the function.
Props BinaryMoon, costdev, glendaviesnz.
Fixes#55203.
Built from https://develop.svn.wordpress.org/trunk@52797
git-svn-id: http://core.svn.wordpress.org/trunk@52386 1a063a9b-81f0-0310-95a4-ce76da25c4cd
`file_get_contents()` is faster than `fread()`, because the PHP core can decide how to best read the remaining file; it could decide to issue just one `read()` call or `mmap()` the file first.
Per the PHP manual, `file_get_contents()` or `stream_get_contents()` is the preferred way to read the contents of a file into a string. It will use memory mapping techniques if supported by the OS to enhance performance.
Reference: [https://www.php.net/manual/en/function.file-get-contents.php PHP Manual: file_get_contents()].
Follow-up to [50810], [52696], [52698], [52701].
Props maxkellermann.
See #55069.
Built from https://develop.svn.wordpress.org/trunk@52718
git-svn-id: http://core.svn.wordpress.org/trunk@52307 1a063a9b-81f0-0310-95a4-ce76da25c4cd
The `get_post_galleries()` function only handled galleries from the `[gallery]` shortcode. It did not process gallery blocks.
Introducing v1 and v2 gallery block support in `get_post_galleries()` including support for innerblock nesting.
There are no changes to how the function is called. It detects if the post content has one or more gallery blocks. If detected, it parses the blocks and then processes to add each gallery block's HTML to the array of galleries before being passed through the filter and returned.
Includes integration tests.
Follow-up to [24682], [43309], [48262], [52042].
Props glendaviesnz, costdev, antpb, audrasjb, birgire, celloexpressions, desrosj, hellofromTonya, jeffpaul, lynk, pento, ramonopoly, russhylov, takahashi_fumiki, tellyworth.
Fixes#43826.
Built from https://develop.svn.wordpress.org/trunk@52190
git-svn-id: http://core.svn.wordpress.org/trunk@51782 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This changeset implements the refined lazy-loading behavior outlined in https://make.wordpress.org/core/2021/07/15/refining-wordpress-cores-lazy-loading-implementation/ in order to improve the Largest Contentful Paint metric, which can see a regression from images or iframes above the fold being lazy-loaded. Adjusting this so far has been possible for developers via filters and still is, however this enhancement brings a more accurate behavior out of the box for the majority of themes.
Specifically, this changeset skips the very first "content image or iframe" on the page from being lazy-loaded. "Content image or iframe" denotes any image or iframe that is found within content of any post in the current main query loop as well as any featured image of such a post. This applies both to "singular" as well as "archive" content: On a "singular" page the first image/iframe of the post is not lazy-loaded, while on an "archive" page the first image/iframe of the _first_ post in the query is not lazy-loaded.
This approach refines the lazy-loading behavior correctly for the majority of themes, which use a single-column layout for post content. For themes with multi-column layouts, a new `wp_omit_loading_attr_threshold` filter can be used to change how many of the first images/iframes are being skipped from lazy-loaded (default is `1`). For example, a theme using a three-column grid of latest posts for archives could use the filter to override the threshold to `3` on archive pages, so that the first three content images/iframes would not be lazy-loaded.
Props adamsilverstein, azaozz, flixos90, hellofromtonya, jonoaldersonwp, mte90, rviscomi, tweetythierry, westonruter.
Fixes#53675. See #50425.
Built from https://develop.svn.wordpress.org/trunk@52065
git-svn-id: http://core.svn.wordpress.org/trunk@51657 1a063a9b-81f0-0310-95a4-ce76da25c4cd
* Audio
* Video
* Unattached
This allows for more homogeneous translations in languages where keeping a plural form is important.
Follow-up to [6910], [7397], [8901], [9556], [11749], [13100], [12110], [15491], [15578], [22743], [29426], [29625], [34256], [45651], [46437].
Props jdy68, audrasjb, SergeyBiryukov.
Fixes#54238.
Built from https://develop.svn.wordpress.org/trunk@51903
git-svn-id: http://core.svn.wordpress.org/trunk@51496 1a063a9b-81f0-0310-95a4-ce76da25c4cd
The shortcode content is expected to be a string, not `null`. `do_shortcode()` expects a string for `$content`.
The `img_caption_shortcode()` also expects a string for the `$content` parameter and is expected to return a string for the HTML content to display the caption.
Prior to this commit:
The default value for the `$content` parameter was set to `null`. If no `$content` was passed, the function:
- could return `null` when the `$atts['width'] < 1` or there was no caption
- else, it invoked `do_shortcode( $content )` passing `null` which on PHP 8.1+ triggers a deprecation notice:
{{{
strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated
}}}
This commit:
- Fixes the default `$content` value to align to the expected shortcode content of `string`, not `null`.
- Fixes the PHP 8.1 deprecation notice when `null` was being passed to `do_shortcode()`.
- Changes the assertion in a couple of tests to check for the empty string instead of `null.
Follow-up to [8196], [8925], [8239], [26915], [31530], [42704].
Props jrf, hellofromTonya, azaozz, joedolson.
See #53635.
Built from https://develop.svn.wordpress.org/trunk@51816
git-svn-id: http://core.svn.wordpress.org/trunk@51423 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Replace infinitely autoloading behavior on scroll with a user-controlled load more button. Fix a long standing accessibility issue in the media library. Infinite scroll poses a wide range of problems for accessibility, usability, and performance.
This change modifies the library to load 40 items in the initial view, with a load more button to load the next 40 items and a button to move focus from the load more region to the first of the most recently added items.
The text for communicating the jump target was broadly discussed, agreeing that the text incorporated here would most concisely and clearly convey the purpose of the button, and any further detail is learnable from use.
Props afercia, adamsilverstein, joedolson, audrasjb, francina
Fixes#50105. See #40330.
Built from https://develop.svn.wordpress.org/trunk@50829
git-svn-id: http://core.svn.wordpress.org/trunk@50438 1a063a9b-81f0-0310-95a4-ce76da25c4cd
* Document that WebP constants are only defined in PHP 7.1+.
* Correct the `$filename` parameter type in `wp_get_webp_info()`.
* Use a consistent message when skipping tests due to the lack of WebP support.
* Remove unnecessary `else` branches after `markTestSkipped()`.
* Replace `assertEquals()` with more appropriate assertions.
Follow-up to [50810].
See #35725.
Built from https://develop.svn.wordpress.org/trunk@50814
git-svn-id: http://core.svn.wordpress.org/trunk@50423 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add support for uploading, editing and saving WebP images when supported by the server.
Add 'image/webp' to supported mime types. Correctly identify WebP images and sizes even when PHP doesn't support WebP. Resize uploaded WebP files (when supported) and use for front end markup.
Props markoheijne, blobfolio, Clorith, joemcgill, atjn, desrosj, spacedmonkey, marylauc, mikeschroder, hellofromtonya, flixos90.
Fixes#35725.
Built from https://develop.svn.wordpress.org/trunk@50810
git-svn-id: http://core.svn.wordpress.org/trunk@50419 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Improve the check for sourceless or dimensionless media when determining if the lazy loading attribute should be added to iframes and images. Never include the lazy loading attribute on embeds of WordPress posts as the iframe is initially hidden.
Including `loading="lazy"` on initially hidden iframes and images can prevent the media from loading in some browsers.
Props adamsilverstein, fabianpimminger, flixos90, johnbillion, jonkastonka, joyously, peterwilsoncc, SergeyBiryukov, SirStuey, swissspidy.
Fixes#52768.
Built from https://develop.svn.wordpress.org/trunk@50682
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In the wrapper function `wp_getimagesize()` check if the second parameter was passed before sending it to the PHP function `getimagesize()`.
The PHP function has a different execution path depending on the number of parameters passed, this ensures the wrapper function follows the appropriate path.
Follow up to [50552].
Props azaozz, hellofromtonya, Mista-Flo, peterwilsoncc, rinatkhaziev, RogerTheriault, SergeyBiryukov, terriann, whyisjake.
Fixes#52826.
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When using the `adjacent_image_link()` function there is a condition that will return a linked image. Previously, the returned image was sent without alt attributes.
Now, `adjacent_image_link()` will include alt attributes of the image's title when an image is returned.
Props joedolson, Mista-Flo, sabernhardt.
Fixes#52387.
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Previously, we used `DIR_TESTDATA` to determine if a test should skip a newly silenced error in `wp_getimagesize()`.
We are now using `WP_RUN_CORE_TESTS` instead for consistency.
Props hellofromTonya, SergeyBiryukov.
See #49889.
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Previously, all logic utilizing `getimagesize()` was supressing errors making it difficult to debug usage of the function.
A new `wp_getimagesize()` function has been added to allow the errors to no longer be suppressed when `WP_DEBUG` is enabled.
Props Howdy_McGee, SergeyBiryukov, mukesh27, davidbaumwald, noisysocks, hellofromTonya.
Fixes#49889.
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This adds a new filter, `wp_image_src_get_dimensions` to the `wp_image_src_get_dimensions()` function to correct the dimensions returned for a file whenever WordPress isn't able to correctly get the dimensions from attachment metadata.
Fixes#51865.
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* Expands the capabilities of `wp_filter_content_tags()` to add the attribute to iframe tags if enabled.
* Modifies the default behavior of `wp_lazy_loading_enabled()` so that it returns `true` for `iframe` tags.
* Introduces a `wp_iframe_tag_add_loading_attr()` function.
* Introduces a `wp_iframe_tag_add_loading_attr` filter.
Like for images, the attribute is only added to iframes which have both `width` and `height` specified (see related #50367).
Props azaozz, flixos90, westonruter.
Fixes#50756.
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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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In PHP 8, the GD extension uses `GdImage` objects instead of resources for its underlying data structures.
This updates the existing `is_resource()` calls for image resources in core to accomodate for `GdImage` instances as well.
Props ayeshrajans, jrf.
Fixes#50833.
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Sergey Biryukov
Felix Arntz
audrasjb
Peter Wilson
Adam Silverstein
davidbaumwald
antpb
John Blackbourn
Andrew Ozz
spacedmonkey
hellofromTonya
desrosj
whyisjake
joedolson
Joe McGill
iandunn
Helen Hou-Sandí