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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 |
---|---|
3943 | /** |
3944 | * Filters the cropped image attachment metadata. |
3945 | * |
3946 | * @since 4.3.0 |
3947 | * |
3948 | * @see wp_generate_attachment_metadata() |
3949 | * |
3950 | * @param array $metadata Attachment metadata. |
3951 | */ |
3952 | $metadata = apply_filters( 'wp_ajax_cropped_attachment_metadata', $metadata ); |
3953 | wp_update_attachment_metadata( $attachment_id, $metadata ); |
3954 |
|
3955 | /** |
3956 | * Filters the attachment ID for a cropped image. |
3957 | * |
3958 | * @since 4.3.0 |
3959 | * |
3960 | * @param int $attachment_id The attachment ID of the cropped image. |
3961 | * @param string $context The Customizer control requesting the cropped image. |