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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 5908 | 'baseUrl' => apply_filters( 'emoji_url', 'https://s.w.org/images/core/emoji/15.1.0/72x72/' ), |
| 5909 | |
| 5910 | /** |
| 5911 | * Filters the extension of the emoji png files. |
| 5912 | * |
| 5913 | * @since 4.2.0 |
| 5914 | * |
| 5915 | * @param string $extension The emoji extension for png files. Default .png. |
| 5916 | */ |
| 5917 | 'ext' => apply_filters( 'emoji_ext', '.png' ), |
| 5918 | |
| 5919 | /** |
| 5920 | * Filters the URL where emoji SVG images are hosted. |
| 5921 | * |
| 5922 | * @since 4.6.0 |
| 5923 | * |
| 5924 | * @param string $url The emoji base URL for svg images. |
| 5925 | */ |
| 5926 | 'svgUrl' => apply_filters( 'emoji_svg_url', 'https://s.w.org/images/core/emoji/15.1.0/svg/' ), |
| Line | Code |
| 6015 | |
| 6016 | if ( ! $possible_emoji ) { |
| 6017 | return $text; |
| 6018 | } |
| 6019 | |
| 6020 | /** This filter is documented in wp-includes/formatting.php */ |
| 6021 | $cdn_url = apply_filters( 'emoji_url', 'https://s.w.org/images/core/emoji/15.1.0/72x72/' ); |
| 6022 | |
| 6023 | /** This filter is documented in wp-includes/formatting.php */ |
| 6024 | $ext = apply_filters( 'emoji_ext', '.png' ); |
| 6025 | |
| 6026 | $output = ''; |
| 6027 | /* |
| 6028 | * HTML loop taken from smiley function, which was taken from texturize function. |
| 6029 | * It'll never be consolidated. |
| 6030 | * |
| 6031 | * First, capture the tags as well as in between. |
| 6032 | */ |
| 6033 | $textarr = preg_split( '/(<.*>)/U', $text, -1, PREG_SPLIT_DELIM_CAPTURE ); |