-
-
//向字符串中的特定字符添加反斜杠
- $str = "Hello, my name is John Adams.";
- echo $str;
- echo addcslashes($str,'m');
- echo addcslashes($str,'J');
- ?>
-
输出：
-
-
//向字符串中的预定义字符添加反斜杠
- $str = "Who's John Adams?";
- echo $str . " This is not safe in a database query.
";
- echo addslashes($str) . " This is safe in a database query.";
- ?>
输出：
Who's John Adams? This is not safe in a database query.
Who\'s John Adams? This is safe in a database query.
对于函数addslashes()和addclashes()，都有对应的去除反斜杠的方法，分别为：stripcslashes函数和stripslashes函数。有兴趣的朋友，也可以研究下。
| 
![[Web-Frontend] Node.js-Schnellstart](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
