Title: PHP warning in server logs Last modified: February 20, 2020 --- # PHP warning in server logs * Resolved [lozula](https://wordpress.org/support/users/lozula/) * (@lozula) * [6 years, 3 months ago](https://wordpress.org/support/topic/php-warning-in-server-logs/) * The plugin generates the following PHP warning in my Apache error logs: * Cannot use a scalar value as an array in …/wp-content/plugins/flexible-checkout- fields/classes/class-flexible-checkout-fields-plugin.php on line 604′, * I haven’t added any custom fields in the plugin itself, however I do use the WooCommerce EU VAT Number plugin, which as far as I can tell is the only plugin I have that adds extra fields (a VAT field for users in the EU). * Any idea how I would go about resolving this issue? * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fphp-warning-in-server-logs%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 7 replies - 1 through 7 (of 7 total) * [Marta Borówka](https://wordpress.org/support/users/martapaw/) * (@martapaw) * [6 years, 3 months ago](https://wordpress.org/support/topic/php-warning-in-server-logs/#post-12464128) * Hello [@lozula](https://wordpress.org/support/users/lozula/), * I tried to recreate this issue, but nothing happens like that. * Please send us a WooCommerce system status. [Here’s a screenshot showing how to get it.](https://wpde.sk/i/opm4z5sk2ee7.png) * It’ll help us to resolve the issue faster. * Best regards, Marta * Thread Starter [lozula](https://wordpress.org/support/users/lozula/) * (@lozula) * [6 years, 3 months ago](https://wordpress.org/support/topic/php-warning-in-server-logs/#post-12465067) * Here you go: * ``` ### WordPress Environment ### WordPress address (URL): https://travelphotographycourse.com Site address (URL): https://travelphotographycourse.com WC Version: 3.9.2 REST API Version: ✔ 1.0.7 Log Directory Writable: ✔ WP Version: 5.3.2 WP Multisite: – WP Memory Limit: 256 MB WP Debug Mode: – WP Cron: ✔ Language: en_US External object cache: ✔ ### Server Environment ### Server Info: Apache/2.4.10 (Debian) PHP Version: 7.3.14-1+0~20200123.51+debian8~1.gbpcf42df PHP Post Max Size: 20 MB PHP Time Limit: 60 PHP Max Input Vars: 2500 cURL Version: 7.38.0 OpenSSL/1.0.1t SUHOSIN Installed: – MySQL Version: 5.6.47-87.0-log Max Upload Size: 20 MB 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Engine InnoDB wp_wc_admin_notes: Data: 0.02MB + Index: 0.00MB + Engine InnoDB wp_wc_admin_note_actions: Data: 0.02MB + Index: 0.02MB + Engine InnoDB wp_wc_category_lookup: Data: 0.02MB + Index: 0.00MB + Engine InnoDB wp_wc_customer_lookup: Data: 0.02MB + Index: 0.03MB + Engine InnoDB wp_wc_download_log: Data: 0.02MB + Index: 0.03MB + Engine InnoDB wp_wc_order_coupon_lookup: Data: 0.02MB + Index: 0.03MB + Engine InnoDB wp_wc_order_product_lookup: Data: 0.02MB + Index: 0.06MB + Engine InnoDB wp_wc_order_stats: Data: 0.02MB + Index: 0.05MB + Engine InnoDB wp_wc_order_tax_lookup: Data: 0.02MB + Index: 0.03MB + Engine InnoDB wp_wc_product_meta_lookup: Data: 0.02MB + Index: 0.09MB + Engine InnoDB wp_wc_tax_rate_classes: Data: 0.02MB + Index: 0.02MB + Engine InnoDB wp_wc_webhooks: Data: 0.02MB + Index: 0.02MB + Engine InnoDB ### Post Type Counts ### attachment: 506 condition_group: 2 course: 1 customize_changeset: 5 follow_up_email: 3 lesson: 65 nav_menu_item: 7 page: 18 post: 2 product: 2 quiz: 63 revision: 283 scheduled-action: 1037 shop_coupon: 21 shop_order: 34 sidebar: 2 wc_membership_plan: 1 wc_user_membership: 2184 wp_block: 3 ### Security ### Secure connection (HTTPS): ✔ Hide errors from visitors: ✔ ### Active Plugins (25) ### ManageWP - Worker: by GoDaddy – 4.9.3 Better Search Replace: by Delicious Brains – 1.3.3 Breeze: by Cloudways – 1.1.2 Complianz Privacy Suite (GDPR/CCPA) premium: by RogierLankhorst Complianz – 4.3.1 Content Aware Sidebars: by Joachim Jensen - DEV Institute – 3.11.1 Flexible Checkout Fields: by WP Desk – 2.3.1 Lazy Loader: by Florian Brinkmann MarcDK – 6.0.0 Members: by MemberPress – 2.2.0 reSmush.it Image Optimizer: by reSmush.it – 0.3.0 Sensei LMS Course Progress: by Automattic – 2.0.2 Stackable - Gutenberg Blocks (Premium): by Gambit Technologies Inc – 2.2.1 Ultimate Addons for Gutenberg: by Brainstorm Force – 1.14.6 WooCommerce Admin: by WooCommerce – 0.25.1 WooCommerce Conversion Tracking: by Tareq Hasan – 2.0.6 – Not tested with the 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Must Use Plugins (1) ### ManageWP - Worker Loader: by GoDaddy – ### Settings ### API Enabled: – Force SSL: – Currency: USD ($) Currency Position: left Thousand Separator: , Decimal Separator: . Number of Decimals: 2 Taxonomies: Product Types: external (external) grouped (grouped) pw gift card (pw-gift-card) simple (simple) variable (variable) Taxonomies: Product Visibility: exclude-from-catalog (exclude-from-catalog) exclude-from-search (exclude-from-search) featured (featured) outofstock (outofstock) rated-1 (rated-1) rated-2 (rated-2) rated-3 (rated-3) rated-4 (rated-4) rated-5 (rated-5) Connected to WooCommerce.com: ✔ ### WC Pages ### Shop base: #207 - /shop/ Cart: #208 - /cart/ Checkout: #209 - /checkout/ My account: #210 - /my-account/ Terms and conditions: ❌ Page not set ### Theme ### Name: Travel Photography Course Version: 1.0.96 Author URL: https://www.findingtheuniverse.com Child Theme: ✔ Parent Theme Name: Storefront Parent Theme Version: 2.5.4 Parent Theme Author URL: https://woocommerce.com/ WooCommerce Support: ✔ ### Templates ### Overrides: PhotographyCourseTheme/woocommerce/checkout/form-checkout.php PhotographyCourseTheme/woocommerce/checkout/review-order.php PhotographyCourseTheme/woocommerce/emails/customer-completed-order.php ### Memberships ### Restriction mode:: Redirect to page Public content:: – Excluded from discounts:: – Membership plans:: 1 Travel Photography Course Member:: Members: 2184Access method: Product(s) purchaseAccess length: Unlimited ❌ The plan contains a rule to restrict all Lessons to non-members ### Geolocation debug info ### Default customer location: geolocation_ajax MaxMind GeoIP database: ✔ MaxMind GeoIP license: ✔ : HTTP_CF_IPCOUNTRY: GB GEOIP_COUNTRY_CODE: ❌ HTTP_X_COUNTRY_CODE: ❌ HTTP_X_REAL_IP: 86.153.249.81 HTTP_X_FORWARDED_FOR: 86.153.249.81 REMOTE_ADDR: 86.153.249.81 Real external IP: 86.153.249.81 WCPBC_USE_REMOTE_ADDR: – Geolocation Test: ✔ ### PBC Settings ### Version: 1.8.22 Base location: GB Base currency: USD Price Based On: billing Shipping: – Test mode: – Test country: – Load products price in background: – Currency format: [symbol][price] Prices entered with tax: ✔ Calculate tax based on: shipping Display prices in the shop: incl ### Zone Pricing Eurozone ### zone_id: eurozone name: Eurozone countries: AX | AD | AT | BE | CY | EE | FI | FR | GF | TF | DE | GR | GP | IE | IT | LV | LT | LU | MT | MQ | YT | MC | ME | NL | PT | RE | BL | MF | PM | SM | SK | SI | ES | VA currency: EUR exchange_rate: 1 auto_exchange_rate: no exchange_rate_fee: 0 round_nearest: currency_format: price_thousand_sep: , price_decimal_sep: . price_num_decimals: 2 disable_tax_adjustment: no ### Zone Pricing United Kingdom ### zone_id: united-kingdom name: United Kingdom countries: GB currency: GBP exchange_rate: 1 auto_exchange_rate: no exchange_rate_fee: 0 round_nearest: currency_format: price_thousand_sep: , price_decimal_sep: . price_num_decimals: 2 disable_tax_adjustment: no ### Action Scheduler ### Complete: 1,034 Oldest: 2020-01-21 20:08:18 +0000 Newest: 2020-02-21 14:26:02 +0000 Pending: 3 Oldest: 2020-02-21 15:26:02 +0000 Newest: 2020-02-21 20:05:46 +0000 Canceled: 0 Oldest: – Newest: – In-progress: 0 Oldest: – Newest: – Failed: 0 Oldest: – Newest: – ``` * [Marta Borówka](https://wordpress.org/support/users/martapaw/) * (@martapaw) * [6 years, 3 months ago](https://wordpress.org/support/topic/php-warning-in-server-logs/#post-12472435) * Hello [@lozula](https://wordpress.org/support/users/lozula/), * Thank you. * The problem might be with your theme. Please test the plugin again, but now using [Storefront](https://wordpress.org/themes/storefront/) – official WooCommerce theme. It will help us identify a possible conflict with your theme. * Please let me know if the issue still occurs on Storefront. * Best regards, Marta * Thread Starter [lozula](https://wordpress.org/support/users/lozula/) * (@lozula) * [6 years, 3 months ago](https://wordpress.org/support/topic/php-warning-in-server-logs/#post-12472522) * Hello, * I haven’t significantly changed the theme. It’s just a child version of Storefront with different css. I don’t see how it would make this error happen. * I think it is much more likely to be the EU VAT plugin from Woocommerce, as that adds a field to the checkout page, and line 604 of this plugin is specifically about extra fields added by other plugins. * Laurence * [Marta Borówka](https://wordpress.org/support/users/martapaw/) * (@martapaw) * [6 years, 3 months ago](https://wordpress.org/support/topic/php-warning-in-server-logs/#post-12472561) * Hello [@lozula](https://wordpress.org/support/users/lozula/), * We are not able to recreate this issue, so it will be helpful if you check this issue on the Storefront theme. * Best regards, Marta * [Marta Borówka](https://wordpress.org/support/users/martapaw/) * (@martapaw) * [6 years, 3 months ago](https://wordpress.org/support/topic/php-warning-in-server-logs/#post-12472643) * [@lozula](https://wordpress.org/support/users/lozula/), * We can’t define where is the issue… It seems that the problem is related to some other plugin used in your shop, maybe it’s not the EU VAT plugin. * Have you tried to isolate the issue? Please disable all third-party plugins in your WordPress and try again. Only with Flexible Checkout Fields and WooCommerce, and step by step turn on the other plugins to check where exactly the issue occurs. * Best regards, Marta * Thread Starter [lozula](https://wordpress.org/support/users/lozula/) * (@lozula) * [6 years, 3 months ago](https://wordpress.org/support/topic/php-warning-in-server-logs/#post-12496183) * Hi Marta, * Just to let you know I have identified the issue. There was another piece of code trying to arrange the checkout fields, which was conflicting. When removing the code, it resolved the issue. * Thanks for your time! * Laurence Viewing 7 replies - 1 through 7 (of 7 total) The topic ‘PHP warning in server logs’ is closed to new replies. * ![](https://ps.w.org/flexible-checkout-fields/assets/icon-256x256.gif?rev=2522628) * [Flexible Checkout Fields for WooCommerce - WooCommerce Checkout Manager](https://wordpress.org/plugins/flexible-checkout-fields/) * [Frequently Asked Questions](https://wordpress.org/plugins/flexible-checkout-fields/#faq) * [Support Threads](https://wordpress.org/support/plugin/flexible-checkout-fields/) * [Active Topics](https://wordpress.org/support/plugin/flexible-checkout-fields/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/flexible-checkout-fields/unresolved/) * [Reviews](https://wordpress.org/support/plugin/flexible-checkout-fields/reviews/) * 7 replies * 2 participants * Last reply from: [lozula](https://wordpress.org/support/users/lozula/) * Last activity: [6 years, 3 months ago](https://wordpress.org/support/topic/php-warning-in-server-logs/#post-12496183) * Status: resolved