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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 |
---|---|
505 | * |
506 | * The filter is only evaluated if fopen is enabled on the server. |
507 | * |
508 | * @since 3.1.0 |
509 | * |
510 | * @param string $image_url Current image URL. |
511 | * @param string $attachment_id Attachment ID. |
512 | * @param string $size Size of the image. |
513 | */ |
514 | $filepath = apply_filters( 'load_image_to_edit_attachmenturl', wp_get_attachment_url( $attachment_id ), $attachment_id, $size ); |
515 | } |
516 |
|
517 | /** |
518 | * Filter the returned path or URL of the current image. |
519 | * |
520 | * @since 2.9.0 |
521 | * |
522 | * @param string|bool $filepath File path or URL to current image, or false. |
523 | * @param string $attachment_id Attachment ID. |