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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 |
|---|---|
| 5017 | 'ext' => apply_filters( 'emoji_ext', '.png' ), |
| 5018 | |
| 5019 | /** |
| 5020 | * Filters the URL where emoji SVG images are hosted. |
| 5021 | * |
| 5022 | * @since 4.6.0 |
| 5023 | * |
| 5024 | * @param string The emoji base URL for svg images. |
| 5025 | */ |
| 5026 | 'svgUrl' => apply_filters( 'emoji_svg_url', 'https://s.w.org/images/core/emoji/2.2.1/svg/' ), |
| 5027 | |
| 5028 | /** |
| 5029 | * Filters the extension of the emoji SVG files. |
| 5030 | * |
| 5031 | * @since 4.6.0 |
| 5032 | * |
| 5033 | * @param string The emoji extension for svg files. Default .svg. |
| 5034 | */ |
| 5035 | 'svgExt' => apply_filters( 'emoji_svg_ext', '.svg' ), |