FILTER()¶
Synopsis¶
Filter the string to include only the allowed characters
Description¶
Permits all characters listed in allowed-chars, filtering all others outs. In addition to literally listing the characters, you may also use ranges of characters (delimited by a '-'
Hexadecimal characters started with a '\x'(i.e. \x20)
Octal characters started with a '\0' (i.e. \040)
Also '\t','\n' and '\r' are recognized.
Note
If you want the '-' character it needs to be prefixed with a '\'
Syntax¶
Arguments¶
-
allowed-chars
-
string
Generated Version¶
This documentation was generated from Asterisk branch 22 using version GIT