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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.
| Line | Code |
|---|---|
| 5917 | 'svgUrl' => apply_filters( 'emoji_svg_url', 'https://s.w.org/images/core/emoji/15.0.3/svg/' ), |
| 5918 | |
| 5919 | /** |
| 5920 | * Filters the extension of the emoji SVG files. |
| 5921 | * |
| 5922 | * @since 4.6.0 |
| 5923 | * |
| 5924 | * @param string $extension The emoji extension for svg files. Default .svg. |
| 5925 | */ |
| 5926 | 'svgExt' => apply_filters( 'emoji_svg_ext', '.svg' ), |
| 5927 | ); |
| 5928 | |
| 5929 | $version = 'ver=' . get_bloginfo( 'version' ); |
| 5930 | |
| 5931 | if ( SCRIPT_DEBUG ) { |
| 5932 | $settings['source'] = array( |
| 5933 | /** This filter is documented in wp-includes/class-wp-scripts.php */ |
| 5934 | 'wpemoji' => apply_filters( 'script_loader_src', includes_url( "js/wp-emoji.js?$version" ), 'wpemoji' ), |
| 5935 | /** This filter is documented in wp-includes/class-wp-scripts.php */ |