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<?php |
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namespace floor12\Breadcrumbs; |
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class Breadcrumbs |
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{ |
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const HTML_OL = '<ol itemscope itemtype="http://schema.org/BreadcrumbList" class="%s" id="%s">%s</ol>'; |
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const HTML_LI = '<li itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem">%s</li>'; |
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const HTML_A = '<a data-pjax="0" itemprop="item" href="%s">%s</a>'; |
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const HTML_SPAN = '<span itemprop="name">%s</span>'; |
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const HTML_META_POSITION = '<meta itemprop="position" content="%d">'; |
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protected $cssClass = 'f12-breadcrumbs'; |
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protected $mainId = 'f12-breadcrumbs'; |
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protected $elements = []; |
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public function __construct(array $elements = []) |
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{ |
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$this->elements = $elements; |
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} |
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public function addElement(string $name, string $url = null): self |
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{ |
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if ($url) |
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$this->elements[$url] = $name; |
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else |
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array_push($this->elements, $name); |
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return $this; |
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} |
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public function getHtml(): ?string |
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{ |
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if (\count($this->elements) === 0) { |
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return null; |
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} |
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$renderedElements = []; |
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$position = 0; |
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foreach ($this->elements as $url => $name) { |
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$position++; |
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$element = $element = sprintf(self::HTML_SPAN, $name) . sprintf(self::HTML_META_POSITION, $position); |
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if (!is_numeric($url)) { |
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$element = sprintf(self::HTML_A, $url, $element); |
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} |
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$renderedElements[] = sprintf(self::HTML_LI, $element); |
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} |
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return sprintf( |
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self::HTML_OL, |
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$this->cssClass, |
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$this->mainId, |
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implode($renderedElements) |
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); |
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} |
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public function setCssClass(string $cssClass): self |
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{ |
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$this->cssClass = $cssClass; |
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return $this; |
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} |
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public function setMainId(string $mainId): self |
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{ |
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$this->mainId = $mainId; |
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return $this; |
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} |
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public function getElements(): array |
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{ |
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return $this->elements; |
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} |
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} |
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floor12 /
breadcrumbs-microdata
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