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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 |
|---|---|
| 3286 | |
| 3287 | /** |
| 3288 | * Filter the attachment ID for a cropped image. |
| 3289 | * |
| 3290 | * @since 4.3.0 |
| 3291 | * |
| 3292 | * @param int $attachment_id The attachment ID of the cropped image. |
| 3293 | * @param string $context The Customizer control requesting the cropped image. |
| 3294 | */ |
| 3295 | $attachment_id = apply_filters( 'wp_ajax_cropped_attachment_id', $attachment_id, $context ); |
| 3296 | } |
| 3297 | |
| 3298 | wp_send_json_success( wp_prepare_attachment_for_js( $attachment_id ) ); |
| 3299 | } |
| 3300 | |
| 3301 | /** |
| 3302 | * Ajax handler for generating a password. |
| 3303 | * |
| 3304 | * @since 4.4.0 |