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<?php namespace AmpProject\Optimizer\Error; use DOMAttr; use DOMElement; /** * Dump an element with its attributes. * * This is meant for quick identification of an element and does not dump the child element or other inner content * from that element. */ final class ElementDump { /** * Element to dump. * * @var DOMElement */ private $element; /** * * * Defaults to 120. * * @var int */ private $truncate; /** * Instantiate an ElementDump object. * * The object is meant to be cast to a string to do its magic. * * @param DOMElement $element Element to dump. * @param int $truncate Optional. Maximum length of the dumped string to truncate to. Defaults to 120. */ public function __construct(DOMElement $element, $truncate = 120) { $this->element = $element; $this->truncate = $truncate; } /** * Dump the provided element into a string. * * @return string Dump of the element. */ public function __toString() { static $dump = null; if ($dump === null) { $dump = sprintf( '<%s%s', $this->element->tagName, array_reduce( iterator_to_array($this->element->attributes, true), static function ($text, DOMAttr $attribute) { return $text . " {$attribute->nodeName}=\"{$attribute->value}\""; }, '' ) ); if (mb_strlen($dump) > $this->truncate) { $dump = mb_substr($dump, 0, $this->truncate - 1) . '…'; } $dump .= '>'; } return (string)$dump; } }
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