The escape function returns a hexadecimal encoding of an argument in the ISO Latin-1 character set that contains the contents of charstring. The Syntax is:
escape("string")
String is a string in the ISO Latin-1 character set.
The value returned by the escape function is one of the following:
For alphanumeric characters, the same character (i.e. the function has no effect).
For the space it returned as "%20."
For non-alphanumeric characters other than space, a string of the form "%xx," where xx is the hexadecimal encoding of the ASCII character in the ISO Latin-1 character set.
For example,
escape("abc&%")
the following code will returns "abc%26%25".
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