Online PHP editor | perf for WQIeS

<?php echo count(explode(",",'sku,_store,_attribute_set,_type,_category,_root_category,_product_websites,color,cost,country_of_manufacture,created_at,custom_design,custom_design_from,custom_design_to,custom_layout_update,deliver_days,deliver_days_budget,description,enable_googlecheckout,extra_charge,extra_charge_budget,format,gallery,gift_message_available,grammatur,ground_price,ground_price_budget,has_options,height,image,image_label,is_imported,manufacturer,media_gallery,meta_description,meta_keyword,meta_title,minimal_price,msrp,msrp_display_actual_price_type,msrp_enabled,name,news_from_date,news_to_date,options_container,page_layout,price,required_options,short_description,small_image,small_image_label,special_from_date,special_price,special_to_date,status,supplier,tax_class_id,thumbnail,thumbnail_label,updated_at,url_key,url_path,visibility,weight,width,qty,min_qty,use_config_min_qty,is_qty_decimal,backorders,use_config_backorders,min_sale_qty,use_config_min_sale_qty,max_sale_qty,use_config_max_sale_qty,is_in_stock,notify_stock_qty,use_config_notify_stock_qty,manage_stock,use_config_manage_stock,stock_status_changed_auto,use_config_qty_increments,qty_increments,use_config_enable_qty_inc,enable_qty_increments,is_decimal_divided,_links_related_sku,_links_related_position,_links_crosssell_sku,_links_crosssell_position,_links_upsell_sku,_links_upsell_position,_associated_sku,_associated_default_qty,_associated_position,_tier_price_website,_tier_price_customer_group,_tier_price_qty,_tier_price_price,_group_price_website,_group_price_customer_group,_group_price_price,_media_attribute_id,_media_image,_media_lable,_media_position,_media_is_disabled');

Version	System time (s)	User time (s)	Memory (MiB)
5.4.11	0.014	0.042	11.99
5.4.10	0.015	0.044	11.99
5.4.9	0.024	0.055	11.99
5.4.8	0.016	0.043	11.99
5.4.7	0.024	0.061	11.98
5.4.6	0.016	0.041	11.99
5.4.5	0.018	0.040	11.98
5.4.4	0.017	0.041	11.97
5.4.3	0.017	0.052	11.97
5.4.2	0.022	0.046	11.96
5.4.1	0.018	0.049	11.97
5.4.0	0.034	0.051	11.46
5.3.21	0.017	0.044	12.68
5.3.20	0.018	0.043	12.68
5.3.19	0.016	0.046	12.68
5.3.18	0.016	0.046	12.67
5.3.17	0.023	0.047	12.67
5.3.16	0.017	0.044	12.67
5.3.15	0.016	0.044	12.67
5.3.14	0.017	0.055	12.66
5.3.13	0.017	0.045	12.66
5.3.12	0.021	0.062	12.66
5.3.11	0.019	0.040	12.66
5.3.10	0.020	0.061	12.12
5.3.9	0.022	0.057	12.08
5.3.8	0.014	0.047	12.08
5.3.7	0.017	0.053	12.07
5.3.6	0.015	0.047	12.06
5.3.5	0.018	0.042	12.00
5.3.4	0.025	0.056	12.00
5.3.3	0.018	0.041	11.94
5.3.2	0.030	0.072	11.72
5.3.1	0.018	0.048	11.68
5.3.0	0.017	0.039	11.66