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Undefined index: extension Why is this?

Why is this error reported?

田超¹³¹⁶⁸⁶⁷⁴⁰¹³田超¹³¹⁶⁸⁶⁷⁴⁰¹³1539 days ago1137

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  • 西门大官人

    西门大官人2020-12-14 09:42:52

    The reason why the extension array subscript was not found when your php program was running

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