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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 |
---|---|
592 | /** |
593 | * Filters the current image being loaded for editing. |
594 | * |
595 | * @since 2.9.0 |
596 | * |
597 | * @param resource $image Current image. |
598 | * @param string $attachment_id Attachment ID. |
599 | * @param string $size Image size. |
600 | */ |
601 | $image = apply_filters( 'load_image_to_edit', $image, $attachment_id, $size ); |
602 | if ( function_exists('imagealphablending') && function_exists('imagesavealpha') ) { |
603 | imagealphablending($image, false); |
604 | imagesavealpha($image, true); |
605 | } |
606 | } |
607 | return $image; |
608 | } |
609 |
|
610 | /** |