The escape function get_magic_quotes_gpc is unclear. Solution

The escape function get_magic_quotes_gpc is unclear. Generally, you can understand the get... _ gpc function. you can see the addslashes. Is it a function? = .. Array_walk has read several other w3c articles, which are uncertain. 1) the escape function get_magic_quotes_gpc is not clear.


Generally, you can understand the get... _ gpc function,
Generally, you can understand addslashes. Is it a function? = ..

Array_walk has read several w3c articles, which are uncertain,

1) Can you briefly explain the role of array_walk?
2) What does the code described in the image mean?
3) Can I replace it with the following statement?
If (! Get_magic_quotes_gpc ())
{
Addslashes ($ prot );
}

------ Solution --------------------
1) the array_walk () function applies a callback function to each element in the array. If the call succeeds, TRUE is returned. otherwise, FALSE is returned.

2) it is actually anti-SQL injection, adding a backslash to the pre-defined characters in The get/post values

3) No
------ Solution --------------------
1. on the same building

2. there is no need for addslashes to enable Magic reference. if it is not enabled, it is necessary to filter it before receiving the database.

3. the array_walk () filters both the post and get arrays. why?
------ Solution --------------------
Php 5.4 has removed this ini parameter and is unified. Don't worry about it. follow the method after 5.4. Otherwise, the code to be rewritten will be upgraded later.