The 10 Worst Mistakes Advanced WordPress Developers Make

By: CodexCoach jan. 23rd, 2023

WordPress is a popular platform for quickly launching a website. However, in their haste, many developers make disastrous decisions.

[{"selector":"#anim-50fe3d1c-9bd8-4ecb-9134-e9ae4aa0ffc2 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(9.807692284459469%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-81b6d666-e3ed-478c-831b-ffa1f468574f","keyframes":{"transform":["translate3d(100.00000%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-55bef833-e7a9-4e6f-87af-3436dbcd661c","keyframes":{"opacity":[0,1]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-bbc0c4bc-d479-49dc-95af-a9d927437cd4","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] Learn more

1. Putting WordPress Theme JavaScript Code in a Single File

[{"selector":"#anim-6e177d00-5ea4-4128-8836-6b03713bff13 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-2e0bc37e-b943-4220-9093-3a3041f63657","keyframes":{"transform":["translate3d(114.68750%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-79cf730e-9394-41e2-9157-6d7d0bc3c2be","keyframes":{"opacity":[0,1]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-9ffea174-839d-46fb-afd7-88449b743190","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] Learn more

2. Using Overly Popular Variable, Function, Constant, or Class Names

[{"selector":"#anim-73e24990-f3bf-4e91-a82a-4736667c466f [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-bbfc22ef-e014-4454-9984-101ef2e7ff2f","keyframes":{"transform":["translate3d(114.68750%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-c004726b-0013-4acd-a8e4-62df6daf2449","keyframes":{"opacity":[0,1]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-bf531c99-a441-4d09-ab04-fe607b7c2d24","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] Learn more

3. Not Making Full Use of Existing WordPress Core Functionality

[{"selector":"#anim-9bbeb615-cacd-47b4-921a-a85a10ce7dbc [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-10cf02e7-cba2-4e9b-a05b-da6451b49bb8","keyframes":{"transform":["translate3d(114.68750%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-45fd054f-8406-4512-abf6-94610242aba6","keyframes":{"opacity":[0,1]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-997cdc0d-d798-4b20-9496-791546b3e3c6","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] Learn more

4. Making the plugin or theme stressful to modify via actions and filters

[{"selector":"#anim-8ff33b53-15af-4cef-8a41-7ee7972ea120 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-1679e776-3b62-4d74-a952-4a7e0dcbd54b","keyframes":{"transform":["translate3d(114.68750%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-ca2258c3-63d5-4bf1-bb56-34a112cce7a3","keyframes":{"opacity":[0,1]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b12654f6-7890-4fd2-bd91-196b75317a28","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] Learn more

5. Developing with WP_DEBUG Set to false

[{"selector":"#anim-933de470-97dc-418f-bbd3-5810093edbda [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-40f9757b-5933-4a59-86cc-dd1eb4d58517","keyframes":{"transform":["translate3d(114.68750%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-e0f823f4-e731-40f0-9ccd-4dc103c0ebb4","keyframes":{"opacity":[0,1]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-6360132d-9527-4cc1-b3a6-24397a6b08fe","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] Learn more

6. Writing PHP code without considering the possibility that the page will be cached one day

[{"selector":"#anim-6e7794e3-19fe-40b7-b288-538229f1ff64 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(-6.6346153688990555%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-1ec3926c-e303-40ed-a0bf-402b08d50573","keyframes":{"transform":["translate3d(114.68750%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-06a23e0b-6320-4ed4-a5dc-bc3c6b7b03a6","keyframes":{"opacity":[0,1]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-35adbd89-2d1a-4801-adbb-5eb22454f16c","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] Learn more

7. Not Tracking Changes Made Professionally Using a Version Control System Like Git

[{"selector":"#anim-952be300-c914-4fa1-8d4d-2203040563ca [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(-8.558915098761517%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-2e2186e4-7487-4bb8-8687-106b0ab57c2d","keyframes":{"transform":["translate3d(114.68750%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-7275f340-fdb4-4548-b1ab-b7f4249a0b75","keyframes":{"opacity":[0,1]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-e793ee4e-ca0f-4322-805f-9e8cc81ce31f","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] Learn more

8. Enqueuing CSS and JavaScript Files When They Are Not Needed

[{"selector":"#anim-12d77997-57ba-491c-997c-eb5d55c431ff [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(2.521978013905123%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-3a888a9a-4120-4a5f-b5ac-29ae691c6949","keyframes":{"transform":["translate3d(114.68750%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-6a891e75-8084-4b56-88f9-37e05beb5eee","keyframes":{"opacity":[0,1]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-e98e510f-f9c8-4176-9008-388da8b0496b","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] Learn more

9. Instead of static code, use.php files to output CSS or JavaScript code. CSS and JS Source Code

[{"selector":"#anim-a174f40b-868b-4930-933e-884f33352ed4 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(2.521978013905123%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-c71d792c-a371-4a26-a898-fe5e26142976","keyframes":{"transform":["translate3d(113.75000%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-941d6b92-4ea0-4f40-83b9-75fabefef8f9","keyframes":{"opacity":[0,1]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-866d5ecd-2f6a-4bf7-aff5-caf5c1e10f53","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] Learn more

10. Not Using the Right Code Organization for the WordPress Plugins and Themes

[{"selector":"#anim-564cc000-9dbc-4dfb-bd8c-5baa56a28d79 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-2905d969-5885-4377-8bb5-b4538b2a7706","keyframes":{"transform":["translate3d(114.37500%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b8732692-eee6-4c57-ae4a-269438015fef","keyframes":{"opacity":[0,1]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-a433d79a-4e6f-4646-9ac1-c29d7ff7d843","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] Learn more

11. Not Taking WordPress Security Seriously When Writing Code

[{"selector":"#anim-82a57326-c79e-479f-a4ff-4ec481797e2b [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-5acdd5e0-6fe6-4c5c-9c0f-8bb4df1965a6","keyframes":{"transform":["translate3d(114.37500%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b2a79cf1-41a2-424f-b5bd-11fde9df6d80","keyframes":{"opacity":[0,1]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-0ca43147-ff40-4c87-a063-a4887df513b9","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] Learn more

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[{"selector":"#anim-f13051e5-bd3f-49b8-913c-b9ffb9f1eea1","keyframes":{"opacity":[0,1]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-184b9e1d-d595-4f91-810b-f7d5f2803045","keyframes":{"transform":["translate3d(0px, -246.49575%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-0ffb7d3d-3f4c-46f4-a2cd-57ca2083ba87","keyframes":{"opacity":[0,1]},"delay":100,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-3c44c0e3-9a40-4614-b039-db7c6bd557e8","keyframes":{"transform":["translate3d(0px, -191.26616%, 0)","translate3d(0px, 0px, 0)"]},"delay":100,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Codexcoach.com Everyone makes errors, and each one is an opportunity to grow. As WordPress developers, we work at a breakneck pace, and there is no one "correct way" to accomplish things. Learn more