Formula for (PHP 4, PHP 5)
string addcslashes ( string str, string charlist )

Parameter
string str = Required. Specifies the string to check
string charlist = Required. Specifies the characters or range of characters to be affected by addcslashes()

Description
The addcslashes() function returns a string with backslashes in front of the specified characters.


Example



The output of the code :


Hello, my name is Kim Joyim.
Hello, \my na\me is Kim Joyi\m.
Hello, my name is \Kim Joyim.

Returns a string with backslashes before characters that are listed in charlist parameter. If charlist contains characters \n, \r etc., they are converted in C-like style, while other non-alphanumeric characters with ASCII codes lower than 32 and higher than 126 converted to octal representation.

Be careful if you choose to escape characters 0, a, b, f, n, r, t and v. They will be converted to \0, \a, \b, \f, \n, \r, \t and \v. In PHP \0 (NULL), \r (carriage return), \n (newline) and \t (tab) are predefined escape sequences, while in C all of these are predefined escape sequences.

charlist like "\0..\37", which would escape all characters with ASCII code between 0 and 31.