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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 |
|---|---|
| 2108 | /** |
| 2109 | * Filter the default array of embed dimensions. |
| 2110 | * |
| 2111 | * @since 2.9.0 |
| 2112 | * |
| 2113 | * @param int $width Width of the embed in pixels. |
| 2114 | * @param int $height Height of the embed in pixels. |
| 2115 | * @param string $url The URL that should be embedded. |
| 2116 | */ |
| 2117 | return apply_filters( 'embed_defaults', compact( 'width', 'height' ), $url ); |
| 2118 | } |
| 2119 | |
| 2120 | /** |
| 2121 | * Based on a supplied width/height example, return the biggest possible dimensions based on the max width/height. |
| 2122 | * |
| 2123 | * @since 2.9.0 |
| 2124 | * @uses wp_constrain_dimensions() This function passes the widths and the heights. |
| 2125 | * |
| 2126 | * @param int $example_width The width of an example embed. |