HTMLPurifier_AttrTransform_ImgRequired

Transform that supplies default values for the src and alt attributes in img tags, as well as prevents the img tag from being removed because of a missing alt tag. This needs to be registered as both a pre and post attribute transform.

• Full name: \HTMLPurifier_AttrTransform_ImgRequired
• Parent class: \HTMLPurifier_AttrTransform

Methods

transform

Abstract: makes changes to the attributes dependent on multiple values.

public transform(array $attr, \HTMLPurifier_Config $config, \HTMLPurifier_Context $context): array

Parameters:

Parameter	Type	Description
$attr	array
$config	\HTMLPurifier_Config
$context	\HTMLPurifier_Context

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Inherited methods

transform

Abstract: makes changes to the attributes dependent on multiple values.

public transform(array $attr, \HTMLPurifier_Config $config, \HTMLPurifier_Context $context): array

• This method is abstract.

Parameters:

Parameter	Type	Description
$attr	array	Assoc array of attributes, usually from HTMLPurifier_Token_Tag::$attr
$config	\HTMLPurifier_Config	Mandatory HTMLPurifier_Config object.
$context	\HTMLPurifier_Context	Mandatory HTMLPurifier_Context object

Return Value:

Processed attribute array.

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prependCSS

Prepends CSS properties to the style attribute, creating the attribute if it doesn't exist.

public prependCSS(array& $attr, string $css): mixed

Parameters:

Parameter	Type	Description
$attr	array	Attribute array to process (passed by reference)
$css	string	CSS to prepend

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confiscateAttr

Retrieves and removes an attribute

public confiscateAttr(array& $attr, mixed $key): mixed

Parameters:

Parameter	Type	Description
$attr	array	Attribute array to process (passed by reference)
$key	mixed	Key of attribute to confiscate

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Automatically generated on 2025-03-18