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get_image_tag_class

apply_filters( ‘get_image_tag_class’, string $class, int $id, string $align, string|int[] $size )

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Filters the value of the attachment’s image tag class attribute.

Parameters

$classstring
CSS class name or space-separated list of classes.
$idint
Attachment ID.
$alignstring
Part of the class name for aligning the image.
$sizestring|int[]
Requested image size. Can be any registered image size name, or an array of width and height values in pixels (in that order).

Source

$class = apply_filters( 'get_image_tag_class', $class, $id, $align, $size );

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Used byDescription
get_image_tag()wp-includes/media.php

Gets an img tag for an image attachment, scaling it down if requested.

Changelog

VersionDescription
2.6.0Introduced.

User Contributed Notes

  1. Skip to note 2 content
    Emil
    You must log in to vote on the helpfulness of this noteVote results for this note: 0You must log in to vote on the helpfulness of this note

    To add the .img-fluid class, for responsive images in Bootstrap 4:

    function example_add_img_class( $class ) {
	
	return $class . ' img-fluid';
	
}

add_filter( 'get_image_tag_class', 'example_add_img_class' );

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