这对我有用。

function remove_width_and_height_attribute( $html ) {
   return preg_replace( \'/(height|width)="\\d*"\\s/\', "", $html );
}

wp_get_attachment_image_src( $attachment_id, \'full\' );

remove_width_and_height_attribute(wp_get_attachment_image_src( $attachment_id, \'full\' ));

您还可以获取图像的宽度和高度数据。

$src = wp_get_attachment_image_src( $attachment_id, \'full\' );
var_dump($src);

array
  0 => string \'http://example.com/wp-content/uploads/2009/08/DSC00261.JPG\' (length=63)
  1 => int 1632
  2 => int 1224
  3 => boolean false

$src[0] => url
$src[1] => width
$src[2] => height
$src[3] => icon

One 具体情况，而不是所有现场。

Fx. 如果要从WordPress的HTML输出函数中删除width=“400”，可以执行以下操作：

Somewhere in a file:

ob_start(); // Start buf
wp_get_attachment_image($imageID, \'full\', false); //\'full\' = size
$htmlString = ob_get_clean(); // output to variable
echo preg_replace(\'/width="\\d*"/\',\'\',$variable); // Remove width attribute and whatever digit inside.