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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 |
---|---|
3299 | /** |
3300 | * Filters the cropped image attachment metadata. |
3301 | * |
3302 | * @since 4.3.0 |
3303 | * |
3304 | * @see wp_generate_attachment_metadata() |
3305 | * |
3306 | * @param array $metadata Attachment metadata. |
3307 | */ |
3308 | $metadata = apply_filters( 'wp_ajax_cropped_attachment_metadata', $metadata ); |
3309 | wp_update_attachment_metadata( $attachment_id, $metadata ); |
3310 |
|
3311 | /** |
3312 | * Filters the attachment ID for a cropped image. |
3313 | * |
3314 | * @since 4.3.0 |
3315 | * |
3316 | * @param int $attachment_id The attachment ID of the cropped image. |
3317 | * @param string $context The Customizer control requesting the cropped image. |