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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 |
|---|---|
| 5684 | 'ext' => apply_filters( 'emoji_ext', '.png' ), |
| 5685 | |
| 5686 | /** |
| 5687 | * Filters the URL where emoji SVG images are hosted. |
| 5688 | * |
| 5689 | * @since 4.6.0 |
| 5690 | * |
| 5691 | * @param string $url The emoji base URL for svg images. |
| 5692 | */ |
| 5693 | 'svgUrl' => apply_filters( 'emoji_svg_url', 'https://s.w.org/images/core/emoji/13.1.0/svg/' ), |
| 5694 | |
| 5695 | /** |
| 5696 | * Filters the extension of the emoji SVG files. |
| 5697 | * |
| 5698 | * @since 4.6.0 |
| 5699 | * |
| 5700 | * @param string $extension The emoji extension for svg files. Default .svg. |
| 5701 | */ |
| 5702 | 'svgExt' => apply_filters( 'emoji_svg_ext', '.svg' ), |