Question

Alert: This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness.

_wp_get_image_size_from_meta( string $size_name,  array $image_meta )

Get the image size as array from its meta data.

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description

Used for responsive images.

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参数

$size_name

(string) (Required) Image size. Accepts any valid image size name ('thumbnail', 'medium', etc.).

$image_meta

(array) (Required) The image meta data.

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返回值

(array|bool) Array of width and height values in pixels (in that order) or false if the size doesn't exist.

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源代码

File: wp-includes/media.php

function _wp_get_image_size_from_meta( $size_name, $image_meta ) {
	if ( $size_name === 'full' ) {
		return array(
			absint( $image_meta['width'] ),
			absint( $image_meta['height'] ),
		);
	} elseif ( ! empty( $image_meta['sizes'][$size_name] ) ) {
		return array(
			absint( $image_meta['sizes'][$size_name]['width'] ),
			absint( $image_meta['sizes'][$size_name]['height'] ),
		);
	}

	return false;
}

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更新日志

Version	description
4.4.0	Introduced.

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相关函数

Uses

• wp-includes/functions.php: absint()

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Used By

• wp-includes/widgets/class-wp-widget-media-image.php: WP_Widget_Media_Image::render_media()
• wp-includes/media.php: wp_calculate_image_sizes()

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User Contributed Notes