wp_constrain_dimensions( int $current_width, int $current_height, int $max_width, int $max_height ): int[]

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 * * @type int $0 The width in pixels. * @type int $1 The height in pixels. * } */ function wp_constrain_dimensions( $current_width, $current_height, $max_width = 0, $max_height = 0 ) {	if ( ! $max_width && ! $max_height ) {	return array( $current_width, $current_height );	}	$width_ratio = 1.0;	$height_ratio = 1.0;	$did_width = false;	$did_height = false;	if ( $max_width > 0 && $current_width > 0 && $current_width > $max_width ) {	$width_ratio = $max_width / $current_width;	$did_width = true;	}	if ( $max_height > 0 && $current_height > 0 && $current_height > $max_height ) {	$height_ratio = $max_height / $current_height;	$did_height = true;	}	// Calculate the larger/smaller ratios.	$smaller_ratio = min( $width_ratio, $height_ratio );	$larger_ratio = max( $width_ratio, $height_ratio );	if ( (int) round( $current_width * $larger_ratio ) > $max_width || (int) round( $current_height * $larger_ratio ) > $max_height ) {	// The larger ratio is too big. It would result in an overflow.	$ratio = $smaller_ratio;	} else {	// The larger ratio fits, and is likely to be a more "snug" fit.	$ratio = $larger_ratio;	}	// Very small dimensions may result in 0, 1 should be the minimum.	$w = max( 1, (int) round( $current_width * $ratio ) );	$h = max( 1, (int) round( $current_height * $ratio ) );	/* * Sometimes, due to rounding, we'll end up with a result like this: * 465x700 in a 177x177 box is 117x176... a pixel short. * We also have issues with recursive calls resulting in an ever-changing result. * Constraining to the result of a constraint should yield the original result. * Thus we look for dimensions that are one pixel shy of the max value and bump them up. */	// Note: $did_width means it is possible $smaller_ratio == $width_ratio.	if ( $did_width && $w === $max_width - 1 ) {	$w = $max_width; // Round it up.	}	// Note: $did_height means it is possible $smaller_ratio == $height_ratio.	if ( $did_height && $h === $max_height - 1 ) {	$h = $max_height; // Round it up.	}	/** * Filters dimensions to constrain down-sampled images to. * * @since 4.1.0 * * @param int[] $dimensions { * An array of width and height values. * * @type int $0 The width in pixels. * @type int $1 The height in pixels. * } * @param int $current_width The current width of the image. * @param int $current_height The current height of the image. 

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