.*?#is', '', $html ); if ( null === $replace ) { return $html; } $replace = preg_replace( '//Uis', '', $replace ); if ( null === $replace ) { return $html; } return $replace; } /** * Hides scripts from the HTML to be parsed when removing CSS from it * * @since 3.10.2 * * @param string $html HTML content. * * @return string */ protected function hide_scripts( $html ) { $replace = preg_replace( '#]*>.*?<\/script\s*>#mis', '', $html ); if ( null === $replace ) { return $html; } return $replace; } /** * Hides

]*>.*?<\/noscript\s*>#mis', '', $html ); if ( null === $replace ) { return $html; } return $replace; } /** * Replace tags in the HTML with comment * * @since 3.12.3 * * @param string $html HTML content. * @return string */ protected function replace_xmp_tags( $html ) { $this->xmp_replace = []; $regex = '#<xmp.*>.*#Uis'; $replaced_html = preg_replace_callback( $regex, [ $this, 'replace_xmp' ], $html ); if ( empty( $replaced_html ) ) { return $html; } return $replaced_html; } /** * Replace xmp with comment * * @since 3.12.3 * * @param array $match xmp tag. * @return string */ protected function replace_xmp( $match ) { $key = sprintf( '', uniqid( 'WPR_XMP_' ) ); $this->xmp_replace[ $key ] = $match[0]; return $key; } /** * Restore tags * * @since 3.12.3 * * @param string $html HTML content. * @return string */ protected function restore_xmp_tags( $html ) { if ( empty( $this->xmp_replace ) ) { return $html; } return str_replace( array_keys( $this->xmp_replace ), array_values( $this->xmp_replace ), $html ); } }