定义和用法 mysql_real_escape_string() 函数转义 SQL 语句中使用的字符串中的特殊字符。 下列字符受影响: \x00 \n \r \ ' \x1a 如果成功,则该函数返回被转义的字符串。如果失败,则返回 false。 语法 mysql_real_escape_string(string,connection) 参数
定义和用法
mysql_real_escape_string() 函数转义 SQL 语句中使用的字符串中的特殊字符。
下列字符受影响:
- \x00
- \n
- \r
- \
- '
- "
- \x1a
如果成功,则该函数返回被转义的字符串。如果失败,则返回 false。
语法
mysql_real_escape_string(string,connection)
参数 | 描述 |
---|---|
string | 必需。规定要转义的字符串。 |
connection | 可选。规定 MySQL 连接。如果未规定,则使用上一个连接。 |
说明
本函数将 string 中的特殊字符转义,并考虑到连接的当前字符集,因此可以安全用于 mysql_query()。

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