本文整理汇总了PHP中_wp_get_image_size_from_meta函数的典型用法代码示例。如果您正苦于以下问题：PHP _wp_get_image_size_from_meta函数的具体用法？PHP _wp_get_image_size_from_meta怎么用？PHP _wp_get_image_size_from_meta使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了_wp_get_image_size_from_meta函数的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的PHP代码示例。
示例1: wp_get_attachment_image_sizes
/**
* Create 'sizes' attribute value for an image.
*
* @since 4.4.0
*
* @param array|string $size Image size. Accepts any valid image size name ('thumbnail', 'medium', etc.),
* or an array of width and height values in pixels (in that order).
* @param array $image_meta Optional. The image meta data as returned by 'wp_get_attachment_metadata()'.
* @param int $attachment_id Optional. Image attachment ID. Either `$image_meta` or `$attachment_id` is needed
* when using the image size name as argument for `$size`.
* @param string $image_url Optional. The URL to the image file.
*
* @return string|bool A valid source size value for use in a 'sizes' attribute or false.
*/
function wp_get_attachment_image_sizes($size, $image_meta = null, $attachment_id = 0, $image_url = null)
{
$width = 0;
if (is_numeric($size)) {
$width = absint($size);
} elseif (is_array($size)) {
$width = absint($size[0]);
} elseif (is_string($size)) {
if (!$image_meta && $attachment_id) {
$image_meta = wp_get_attachment_metadata($attachment_id);
}
if (is_array($image_meta)) {
$size_array = _wp_get_image_size_from_meta($size, $image_meta);
if ($size_array) {
$width = absint($size_array[0]);
}
}
}
if (!$width) {
return false;
}
// Setup the default 'sizes' attribute.
$sizes = sprintf('(max-width: %1$dpx) 100vw, %1$dpx', $width);
/**
* Filter the output of 'wp_get_attachment_image_sizes()'.
*
* @since 4.4.0
*
* @param string $sizes A source size value for use in a 'sizes' attribute.
* @param array|string $size Image size. Image size name, or an array of width and height
* values in pixels (in that order).
* @param array $image_meta The image meta data as returned by 'wp_get_attachment_metadata()'.
* @param int $attachment_id Image attachment ID of the original image.
* @param string $image_url Optional. The URL to the image file.
*/
return apply_filters('wp_get_attachment_image_sizes', $sizes, $size, $image_meta, $attachment_id, $image_url);
}示例2: wp_calculate_image_sizes
/**
* Creates a 'sizes' attribute value for an image.
*
* @since 4.4.0
*
* @param array|string $size Image size to retrieve. Accepts any valid image size, or an array
* of width and height values in pixels (in that order). Default 'medium'.
* @param string $image_src Optional. The URL to the image file. Default null.
* @param array $image_meta Optional. The image meta data as returned by 'wp_get_attachment_metadata()'.
* Default null.
* @param int $attachment_id Optional. Image attachment ID. Either `$image_meta` or `$attachment_id`
* is needed when using the image size name as argument for `$size`. Default 0.
* @return string|bool A valid source size value for use in a 'sizes' attribute or false.
*/
function wp_calculate_image_sizes($size, $image_src = null, $image_meta = null, $attachment_id = 0)
{
$width = 0;
if (is_array($size)) {
$width = absint($size[0]);
} elseif (is_string($size)) {
if (!$image_meta && $attachment_id) {
$image_meta = get_post_meta($attachment_id, '_wp_attachment_metadata', true);
}
if (is_array($image_meta)) {
$size_array = _wp_get_image_size_from_meta($size, $image_meta);
if ($size_array) {
$width = absint($size_array[0]);
}
}
}
if (!$width) {
return false;
}
// Setup the default 'sizes' attribute.
$sizes = sprintf('(max-width: %1$dpx) 100vw, %1$dpx', $width);
/**
* Filter the output of 'wp_calculate_image_sizes()'.
*
* @since 4.4.0
*
* @param string $sizes A source size value for use in a 'sizes' attribute.
* @param array|string $size Requested size. Image size or array of width and height values
* in pixels (in that order).
* @param string|null $image_src The URL to the image file or null.
* @param array|null $image_meta The image meta data as returned by wp_get_attachment_metadata() or null.
* @param int $attachment_id Image attachment ID of the original image or 0.
*/
return apply_filters('wp_calculate_image_sizes', $sizes, $size, $image_src, $image_meta, $attachment_id);
}示例3: wp_get_attachment_image_sizes
/**
* Create `sizes` attribute value for an image.
*
* @since 4.4.0
*
* @param array|string $size Image size. Accepts any valid image size name (thumbnail, medium, etc.),
* or an array of width and height values in pixels (in that order).
* @param array $image_meta Optional. The image meta data.
* @param int $attachment_id Optional. Image attachment ID. Either $image_meta or $attachment_id is needed
* when using image size name.
*
* @return string|bool A valid source size value for use in a 'sizes' attribute or false.
*/
function wp_get_attachment_image_sizes($size, $image_meta = null, $attachment_id = 0)
{
$width = 0;
if (is_numeric($size)) {
$width = absint($size);
} elseif (is_array($size)) {
$width = absint($size[0]);
} elseif (is_string($size)) {
if (!$image_meta && $attachment_id) {
$image_meta = wp_get_attachment_metadata($attachment_id);
}
if ($image_meta) {
$width = _wp_get_image_size_from_meta($size, $image_meta);
if ($width) {
$width = $width[0];
}
}
}
if (!$width) {
return false;
}
// Setup the default sizes attribute.
$sizes = sprintf('(max-width: %1$dpx) 100vw, %1$dpx', (int) $width);
/**
* Filter the output of wp_get_attachment_image_sizes().
*
* @since 4.4.0
*
* @param string $sizes A source size value for use in a 'sizes' attribute.
* @param array|string $size Image size. Accepts any valid image size, or an array of width and height
* values in pixels (in that order). Default 'medium'.
* @param array $image_meta The image meta data.
* @param int $attachment_id Post ID of the original image.
*/
return apply_filters('wp_get_attachment_image_sizes', $sizes, $size, $image_meta, $attachment_id);
}