_selector !== '' ){ $this->add_selector_rules_to_output(); } $this->_selector = $selector; return $this; } public function add_property( $property, $value, $og_default = false, $unit = false ) { // Add our unit to the value if it exists if ( $unit && '' !== $unit ) { $value = $value . $unit; if ( '' !== $og_default ) { $og_default = $og_default . $unit; } } // If we don't have a value or our value is the same as our og default, bail if ( empty( $value ) || $og_default == $value ) return false; $this->_css .= $property . ':' . $value . ';'; return $this; } private function add_selector_rules_to_output() { if( !empty( $this->_css ) ) { $this->_selector_output = $this->_selector; $selector_output = sprintf( '%1$s{%2$s}', $this->_selector_output, $this->_css ); $this->_output .= $selector_output; // Reset the css $this->_css = ''; } return $this; } public function css_output() { // Add current selector's rules to output $this->add_selector_rules_to_output(); // Output minified css return $this->_output; } } endif;