apply_filters( 'img_caption_shortcode_width', int $width, array $atts, string $content )

2632	 *2633	 * @param int    $width    Width of the caption in pixels. To remove this inline style,2634	 *                         return zero.2635	 * @param array  $atts     Attributes of the caption shortcode.2636	 * @param string $content  The image element, possibly wrapped in a hyperlink.2637	 */2638	$caption_width = apply_filters( 'img_caption_shortcode_width', $width, $atts, $content );2639 2640	$style = '';2641 2642	if ( $caption_width ) {2643		$style = 'style="width: ' . (int) $caption_width . 'px" ';2644	}