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<?php |
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namespace PHPTools\PHPHtmlDom\Core; |
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/** |
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* Esta clae contiene los metodos abstractos para todo PHPHtmlDomElement |
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*/ |
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abstract class PHPHtmlDomElementAbstract |
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{ |
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/** |
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* Permite saber si el elemento posee una clase. |
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* @param string $classname Cadena de texto con el nombre d ela clase a buscar. |
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* @return boolean |
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*/ |
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final public function hasclass($classname) |
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{ |
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return !!$this->hasattr('class')?in_array($classname, explode(' ', $this->attrs->class)):FALSE; |
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} |
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/** |
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* Permite saber si el elemento tiene definido un atributo. |
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* @param string $attr cadena de texto con el nombre del atributo a buscar. |
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* @return boolean |
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*/ |
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final public function hasattr($attr) |
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{ |
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return !!isset($this->attrs->{$attr}); |
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} |
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/** |
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* Permite obtener el valor de un attributo del elemento. |
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* @param string $inx Cadena de texto con el nombre del aatributo a obtener |
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* @return string|NULL Devuelve el valor del atributo si el mismo se encuentra definido o NULL en caso contrario. |
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*/ |
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final public function attr($inx) |
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{ |
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return !!$this->hasattr($inx)?$this->attrs->{$inx}:NULL; |
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} |
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/** |
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* Permite obtener el valor de un atributo tipo data. |
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* @param string $inx Cadena de texto con el nombre del atributo a obtener sin la palabra data |
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* @return string|NULL Devuelve el valor del atributo si el mismo se encuentra definido o NULL en caso contrario. |
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*/ |
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final public function data($inx) |
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{ |
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return $this->attr(sprintf('data-%s',$inx)); |
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} |
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/** |
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* Permite obtener el elemeno padre si lo posee |
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* @return PHPHtmlDomElement|DOMDocument |
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*/ |
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final public function parent() |
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{ |
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$parent = NULL; |
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if(!!isset($this->dom_element->parentNode)) |
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{ |
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if($this->dom_element->parentNode->nodeType == 1) |
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{ |
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$parent = new PHPHtmlDomElement($this->dom_element->parentNode); |
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} |
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else |
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{ |
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$parent = $this->dom_element->parentNode; |
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} |
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} |
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return $parent; |
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} |
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} |
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: