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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 |
|---|---|
| 124 | * @type int $0 The maximum width in pixels. |
| 125 | * @type int $1 The maximum height in pixels. |
| 126 | * } |
| 127 | * @param string|int[] $size Requested image size. Can be any registered image size name, or |
| 128 | * an array of width and height values in pixels (in that order). |
| 129 | * @param string $context The context the image is being resized for. |
| 130 | * Possible values are 'display' (like in a theme) |
| 131 | * or 'edit' (like inserting into an editor). |
| 132 | */ |
| 133 | list( $max_width, $max_height ) = apply_filters( 'editor_max_image_size', array( $max_width, $max_height ), $size, $context ); |
| 134 | |
| 135 | return wp_constrain_dimensions( $width, $height, $max_width, $max_height ); |
| 136 | } |
| 137 | |
| 138 | /** |
| 139 | * Retrieve width and height attributes using given width and height values. |
| 140 | * |
| 141 | * Both attributes are required in the sense that both parameters must have a |
| 142 | * value, but are optional in that if you set them to false or null, then they |