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PHP network functions allow you to access the Internet through PHP
These features can be used without installation. They are part of the PHP core.
Version-Indicates the earliest version of PHP that supports this function.
| Number | Function | Description | Version |
|---|---|---|---|
| 1 | checkdnsrr() | It checks the DNS records of the corresponding host or IP address. | 4 |
| 2 | closelog() | Close the connection of the system logger | 4 |
| 3 | define_syslog_variables() | Initialize the syslog variables | 4 |
| 4 | fsockopen() | It is used to open an Internet or Unix domain socket connection | 4 |
| 5 | gethostbyaddr() | It returns the error code from the last connection | 5 |
| 6 | gethostbyname() | It is used to get the Internet hostname specified by the IP address. | 4 |
| 7 | gethostbynamel() | It is used to get the IPV by the specified hostname4Address list | 4 |
| 8 | gethostname() | Used to get the hostname | 4 |
| 9 | getmxrr() | Used to send MX records to the host | 4 |
| 10 | getprotobyname() | Used to get the protocol number associated with the protocol name | 4 |
| 11 | getprotobynumber() | It is used to get all result lines and return the result set as an associative array | 4 |
| 12 | getservbyname() | Used to get the protocol name associated with the protocol number | 4 |
| 13 | getservbyport() | It is used to get the Internet service corresponding to the port number. | 4 |
| 14 | header_register_callback() | It registers a function to be called when PHP starts sending output. | 4 |
| 15 | header_remove() | It is used to delete previously set headers. | 4 |
| 16 | header() | It is used to send HTTP header lines. | 4 |
| 17 | headers_list() | It is used to return a list of sent Repose headers | 4 |
| 18 | headers_sent() | It checks if headers have been sent. | 4 |
| 19 | http_response_code() | It is used to get or set HTTP responses. | 4 |
| 20 | inet_ntop() | It is used to convert internet packets to a human-readable format. | 4 |
| 21 | inet_pton() | It is used to convert a human-readable IP address to in_addr format. | 4 |
| 22 | ip2long() | It is used to convert ipv4Convert an address to a long integer. | 4 |
| 23 | long2ip() | It is used to convert a long integer value to an IPv4Address. | 4 |
| 24 | openlog() | It is used to open a connection with the system logger. | 4 |
| 25 | pfsockopen() | It is used to open Internet or Unix domain sockets. | 4 |
| 26 | setcookie() | It was once used to set cookies. | 4 |
| 27 | setrawcookie() | It was once used to set cookies. | 4 |
| 28 | socket_set_blocking() | It is an alias of stream_set_blocking(), which has the block or unblock options in stream mode. | 4 |