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<?php |
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namespace GeminiLabs\Castor; |
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use GeminiLabs\Castor\Helpers\PostMeta; |
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use GeminiLabs\Castor\Helpers\Utility; |
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class Image |
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{ |
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public $image; |
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protected $postmeta; |
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protected $utility; |
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public function __construct(PostMeta $postmeta, Utility $utility) |
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{ |
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$this->postmeta = $postmeta; |
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$this->utility = $utility; |
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} |
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/** |
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* @param int|string $attachment |
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* |
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* @return self |
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*/ |
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public function get($attachment) |
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{ |
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$attachment = $this->normalize($attachment); |
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if ($attachment && $thumbnail = wp_get_attachment_image_src($attachment, 'thumbnail')) { |
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$medium = $this->normalizeSrc(wp_get_attachment_image_src($attachment, 'medium'), $thumbnail); |
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$large = $this->normalizeSrc(wp_get_attachment_image_src($attachment, 'large'), $medium); |
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$this->image = (object) [ |
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'alt' => wp_strip_all_tags(get_post_meta($attachment, '_wp_attachment_image_alt', true), true), |
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'caption' => wp_get_attachment_caption($attachment), |
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'copyright' => wp_strip_all_tags(get_post_meta($attachment, '_copyright', true), true), |
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'ID' => $attachment, |
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'large' => $large, |
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'medium' => $medium, |
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'permalink' => get_attachment_link($attachment), |
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'thumbnail' => $this->normalizeSrc($thumbnail), |
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]; |
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} |
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return $this; |
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} |
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public function render($size = 'large') |
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{ |
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if ($this->image) { |
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return wp_get_attachment_image($this->image->ID, $size); |
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} |
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} |
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protected function normalize($attachmentId) |
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{ |
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if (!filter_var($attachmentId, FILTER_VALIDATE_INT)) { |
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$attachmentId = $this->postmeta->get($attachmentId); |
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} |
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$attachment = get_post($attachmentId); |
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if (is_null($attachment) || 'attachment' != $attachment->post_type) { |
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return; |
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} |
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return $attachment->ID; |
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} |
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/** |
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* @param mixed $fallback |
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* |
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* @return array |
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*/ |
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protected function normalizeSrc(array $image, $fallback = false) |
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{ |
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if (is_array($fallback) && count(array_diff($image, $fallback)) < 2) { |
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$image = $fallback; |
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} |
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$image = array_pad($image, 3, ''); |
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return [ |
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'url' => array_shift($image), |
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'width' => array_shift($image), |
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'height' => array_shift($image), |
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]; |
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} |
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} |
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In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
integer
values, zero is a special case, in particular the following results might be unexpected: