$str = "My name is Jack, and what is your name?";echo substr_count ($str,“name”);程序的输出结果为()。A、1B、2C、3D、4

$str = "My name is Jack, and what is your name?";echo substr_count ($str,“name”);程序的输出结果为()。

  • A、1
  • B、2
  • C、3
  • D、4

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