Correct answer: 4

All given options are correct types of operators are used in PHP.

正确答案：4

所有给定的选项都是PHP中使用的正确运算符类型。

Correct answer: 2

The above code will print "81" on the webpage. Because ** operator is used for exponential.

正确答案：2

上面的代码将在网页上打印“ 81” 。 因为**运算符用于指数。

Correct answer: 1

The ** operator belongs to arithmetic operators.

正确答案：1

**运算符属于算术运算符。

Correct answer: 4

All the given options are comparison operators.

正确答案：4

所有给定的选项都是比较运算符。

Correct answer: 1

The above code will print bool(true) on the webpage, the <> operator is "not equal to" operator.

正确答案：1

上面的代码将在网页上打印bool(true) ， <>运算符为“不等于”运算符。

Correct answer: 1

The above code will print bool(true) on the webpage.

正确答案：1

上面的代码将在网页上打印bool(true) 。

Correct answer: 2

The above code will print "int(-1)" on the webpage.

正确答案：2

上面的代码将在网页上打印“ int(-1)” 。

Correct answer: 4

The @ operator is not available in PHP.

正确答案：4

@运算符在PHP中不可用。

Correct answer: 1

The above code will print the "india" on the webpage.

正确答案：1

上面的代码将在网页上打印“印度” 。

Correct answer: 3

The ?? operator is known as the null coalescing operator in PHP.

正确答案：3

?? 运算符在PHP中被称为空合并运算符。