function_exists()는 사용자 정의 함수를 결정할 수 없습니다.

Question

OnFunction test () {Return True;} if (function_exists ('test')) {echo "test is function";} Else {echo "test is not a function";}

// 실행하면 테스트가 함수가 아님이 표시됩니다. 기능. 그냥 var_dump를 사용하세요

Answer 1

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Answer 2

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