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PHP Manual
DOMElement
Checks to see if attribute exists

DOMElement::hasAttribute

(PHP 5, PHP 7, PHP 8)

DOMElement::hasAttribute — Checks to see if attribute exists

說(shuō)明

public DOMElement::hasAttribute(string $qualifiedName): bool

Indicates whether attribute named qualifiedName exists as a member of the element.

參數

qualifiedName: The attribute name.

返回值

成功時(shí)返回 true，或者在失敗時(shí)返回 false。

參見(jiàn)

DOMElement::hasAttributeNS() - Checks to see if attribute exists
DOMElement::getAttribute() - Returns value of attribute
DOMElement::setAttribute() - Adds new or modifies existing attribute
DOMElement::removeAttribute() - Removes attribute

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