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Which of the following is used to check if the function already exists ?

Options:
A) func_exists(myfunction);
B) function_exists(functionname);
C) f_exists(functionname);
D) is_available(functionname);
 
Answer : function_exists(functionname);

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<< Which of the following is used to connect with mysql database ?
>> What will be the output ?
FUNCTION SAYHELLO()
{
ECHO "HELLO WORLD";
}
sayhello();
?>


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