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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 |
|---|---|
| 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. |
| 3318 | */ |
| 3319 | $attachment_id = apply_filters( 'wp_ajax_cropped_attachment_id', $attachment_id, $context ); |
| 3320 | } |
| 3321 | |
| 3322 | wp_send_json_success( wp_prepare_attachment_for_js( $attachment_id ) ); |
| 3323 | } |
| 3324 | |
| 3325 | /** |
| 3326 | * Ajax handler for generating a password. |
| 3327 | * |
| 3328 | * @since 4.4.0 |