replace(str, "union", "union", 1, -1, 1)
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replace是替换语句
如.
replace("123","1","5")就是把123里面的1替换成5
一般用在登录的时候.用于替换掉一些强行登录,非法登录的.像' > < 等..
如.
replace("123","1","5")就是把123里面的1替换成5
一般用在登录的时候.用于替换掉一些强行登录,非法登录的.像' > < 等..
- replace(str, "union", "union", 1, -1, 1)
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