has_ipv4()

Returns a value indicating whether a specified IPv4 address appears in a text.

IP address entrances in a text must be properly delimited with non-alphanumeric characters. For example, properly delimited IP addresses are:

  • "These requests came from: 192.168.1.1, 10.1.1.115 and 10.1.1.201"
  • "05:04:54 127.0.0.1 GET /favicon.ico 404"

Syntax

has_ipv4(source , ip_address )

Arguments

  • source: The value containing the text to search in.
  • ip_address: String value containing the IP address to look for.

Returns

true if the ip_address is a valid IPv4 address, and it was found in source. Otherwise, the function returns false.

Note

To search for many IPv4 addresses at once, use has_any_ipv4() function.

To search for IPv4 addresses prefix, use has_ipv4_prefix() function.

Examples

has_ipv4('05:04:54 127.0.0.1 GET /favicon.ico 404', '127.0.0.1') // true

has_ipv4('05:04:54 127.0.0.256 GET /favicon.ico 404', '127.0.0.256') // false, invalid IPv4 address

has_ipv4('05:04:54127.0.0.1 GET /favicon.ico 404', '127.0.0.1') // false, improperly delimited IP address