Summary of PHP network operation functions_PHP tutorial

Summary of PHP network operation functions

This article mainly introduces the summary of PHP network operation functions. This article lists the commonly used network operations such as gethostbyaddr, gethostbyname, header_remove, http_response_code, ip2long, etc. Friends who need it can refer to the function below

Checkdnsrr — Check DNS communication for the specified host (domain name) or IP address

closelog — Close the system log link

define_syslog_variables — initialize all syslog related variables

dns_check_record — checkdnsrr alias

dns_get_mx — getmxrr alias

　dns_get_record — Get the DNS record of the specified host

fsockopen — Open a network connection or a Unix socket connection

Gethostbyaddr — Get the host name corresponding to the specified IP address

Gethostbyname — Get the IP address corresponding to the specified host name

Gethostbynamel — Get a series of IP addresses corresponding to the specified host name

Gethostname — Get the host name

Getmxrr — Get the MX record corresponding to the specified host name

Getprotobyname — Get the protocol number corresponding to the specified protocol name

Getprotobynumber — Get the protocol name corresponding to the specified protocol number

　getservbyname — Get the port number corresponding to the specified Internet service and protocol

　getservbyport — Get the Internet service corresponding to the specified protocol and port number

header_register_callback — call a header function

header_remove — delete the previously set header

Header — Send a custom http message

Headers_list — Returns a series of response headers that have been sent (or are ready to be sent)

Headers_sent — Check if headers have been sent or where to send them

http_response_code — Get or set the HTTP response code

inet_ntop — Convert an encapsulated network address to dotted decimal representation

inet_pton — Convert a dotted decimal IP address into an encapsulated (in_addr) representation

ip2long — Convert an IPV4 string Internet protocol into a digital format

long2ip — Convert an IPV4 number format into a string Internet Protocol

openlog — Open a connection to the system logger

pfsockopen — Open a persistent network connection or Unix socket connection.

setcookie — Send cookie

Setrawcookie — Send a raw cookie (the cookie value is not URL-encoded)

socket_get_status — stream_get_meta_data alias

socket_set_blocking — stream_set_blocking alias

socket_set_timeout — stream_set_timeout alias

syslog — Generate a system log message

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