Is there a future for new php beginners to do ecshop secondary development? What should I do?

Is there a future for new php beginners to do ecshop secondary development? Is php promising for secondary ecshop development? I am a newbie, and I always think it should be better to start from the new project development. I don't know how to improve my abilities ., Although xx membrane repair is not very advanced, it is very profitable. You will have a heart bypass surgery, but there is a future for new php beginners to do secondary development of ecshop?
Is php promising for secondary ecshop development? I am a newbie, and I always think it should be better to start from new project development.
I don't know how to improve my abilities.

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Although xx membrane repair is not very advanced, it is very profitable. You have heart bypass surgery, but the patient may not be able to afford it.
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Discussion

... But I'm afraid that after years of modifying other people's things, I will be stuck.

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It's good to start secondary development at the early stage. it's just a year and a half. then, it's okay to go to the project.
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It can be said that in the second-tier cities, the ec is really delicious .. If a project is sitting down and talking about less than 3000, in developed cities, the independent development and access of ec will not work for the second-tier cities.