无法在php中打印特殊字符

echo "Hello, \"World\"!"; // 输出：Hello, "World"!
echo 'Hello, \'World\'!'; // 输出：Hello, 'World'!
echo "This is a slash: \/"; // 输出：This is a slash: /
echo "This is a new line:\nSecond line"; // 输出：This is a new line:
                                          //        Second line

echo "This is a new line: \x0ASecond line"; // 输出：This is a new line:
                                            //        Second line
echo "This is a carriage return: \x0D"; // 输出：This is a carriage return:
                                        //        (无可见字符)