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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 |
|---|---|
| 493 | /** |
| 494 | * Filter the current image being loaded for editing. |
| 495 | * |
| 496 | * @since 2.9.0 |
| 497 | * |
| 498 | * @param resource $image Current image. |
| 499 | * @param string $attachment_id Attachment ID. |
| 500 | * @param string $size Image size. |
| 501 | */ |
| 502 | $image = apply_filters( 'load_image_to_edit', $image, $attachment_id, $size ); |
| 503 | if ( function_exists('imagealphablending') && function_exists('imagesavealpha') ) { |
| 504 | imagealphablending($image, false); |
| 505 | imagesavealpha($image, true); |
| 506 | } |
| 507 | } |
| 508 | return $image; |
| 509 | } |
| 510 | |
| 511 | /** |