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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 |
---|---|
477 | * @param int $width Image width. |
478 | * @param int $height Image height. |
479 | * @param bool $crop Optional, default is false. Whether to crop image to specified height and width or resize. |
480 | * @return bool|array False, if no image was created. Metadata array on success. |
481 | */ |
482 | function image_make_intermediate_size($file, $width, $height, $crop=false) { |
483 | if ( $width || $height ) { |
484 | $resized_file = image_resize($file, $width, $height, $crop); |
485 | if ( !is_wp_error($resized_file) && $resized_file && $info = getimagesize($resized_file) ) { |
486 | $resized_file = apply_filters('image_make_intermediate_size', $resized_file); |
487 | return array( |
488 | 'file' => basename( $resized_file ), |
489 | 'width' => $info[0], |
490 | 'height' => $info[1], |
491 | ); |
492 | } |
493 | } |
494 | return false; |
495 | } |