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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 |
|---|---|
| 414 | * |
| 415 | * @since 4.1.0 |
| 416 | * |
| 417 | * @param array $dimensions The image width and height. |
| 418 | * @param int $current_width The current width of the image. |
| 419 | * @param int $current_height The current height of the image. |
| 420 | * @param int $max_width The maximum width permitted. |
| 421 | * @param int $max_height The maximum height permitted. |
| 422 | */ |
| 423 | return apply_filters( 'wp_constrain_dimensions', array( $w, $h ), $current_width, $current_height, $max_width, $max_height ); |
| 424 | } |
| 425 | |
| 426 | /** |
| 427 | * Retrieves calculated resize dimensions for use in WP_Image_Editor. |
| 428 | * |
| 429 | * Calculates dimensions and coordinates for a resized image that fits |
| 430 | * within a specified width and height. |
| 431 | * |
| 432 | * Cropping behavior is dependent on the value of $crop: |