function toHTML() {
if ( $this->mPerRow > 0 ) {
$maxwidth = $this->mPerRow * ( $this->mWidths + $this->getAllPadding() );
- $oldStyle = isset( $this->mAttribs['style'] ) ? $this->mAttribs['style'] : '';
+ $oldStyle = $this->mAttribs['style'] ?? '';
# _width is ignored by any sane browser. IE6 doesn't know max-width
# so it uses _width instead
$this->mAttribs['style'] = "max-width: {$maxwidth}px;_width: {$maxwidth}px;" .