<?php?

$str_string1 = '甲問："你在哪學的php？"';

$str_string2 = "乙毫不猶豫地回答：'當然是慕課網咯！';

$str_string3 = '甲問：\'能告訴我網址嗎？\';

$str_string4 = "乙答道:\"www.xianlaiwan.cn\"";

echo $str_string1;

echo "<br />";

echo $str_string2;

echo "<br />";

echo $str_string3;

echo "<br />";

echo $str_string4;

echo "<br />";

?>