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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 |
|---|---|
| 5596 | 'ext' => apply_filters( 'emoji_ext', '.png' ), |
| 5597 | |
| 5598 | /** |
| 5599 | * Filters the URL where emoji SVG images are hosted. |
| 5600 | * |
| 5601 | * @since 4.6.0 |
| 5602 | * |
| 5603 | * @param string The emoji base URL for svg images. |
| 5604 | */ |
| 5605 | 'svgUrl' => apply_filters( 'emoji_svg_url', 'https://s.w.org/images/core/emoji/12.0.0-1/svg/' ), |
| 5606 | |
| 5607 | /** |
| 5608 | * Filters the extension of the emoji SVG files. |
| 5609 | * |
| 5610 | * @since 4.6.0 |
| 5611 | * |
| 5612 | * @param string The emoji extension for svg files. Default .svg. |
| 5613 | */ |
| 5614 | 'svgExt' => apply_filters( 'emoji_svg_ext', '.svg' ), |