Network Functions
Introductie
Afhankelijkheden
Deze functies zijn beschikbaar als onderdeel van de standaard module die altijd beschikbaar is.
Installatie
Er zijn geen handelingen nodig m.b.t. tot installatie voor deze functies, deze maken deel uit van de kern van PHP.
Configuratie tijdens scriptuitvoer
Het gedrag van deze functies wordt beïnvloed vanuit php.ini.
| Name | Default | Changeable | Changelog |
|---|---|---|---|
| define_syslog_variables | "0" | PHP_INI_ALL |
Here's a short explanation of the configuration directives.
- define_syslog_variables boolean
-
Whether or not to define the various syslog variables (e.g. $LOG_PID, $LOG_CRON, etc.). Turning it off is a good idea performance-wise. At runtime, you can define these variables by calling define_syslog_variables().
Resource types
This extension defines a file pointer resource returned by fsockopen() and pfsockopen().
Voorgedefinieerde constanten
De constanten die hier staan zijn altijd aanwezig als een onderdeel van de PHP kern.
| Constant | Description |
|---|---|
| LOG_CONS | if there is an error while sending data to the system logger, write directly to the system console |
| LOG_NDELAY | open the connection to the logger immediately |
| LOG_ODELAY | (default) delay opening the connection until the first message is logged |
| LOG_NOWAIT | |
| LOG_PERROR | print log message also to standard error |
| LOG_PID | include PID with each message |
| Constant | Description |
|---|---|
| LOG_AUTH | security/authorization messages (use LOG_AUTHPRIV instead in systems where that constant is defined) |
| LOG_AUTHPRIV | security/authorization messages (private) |
| LOG_CRON | clock daemon (cron and at) |
| LOG_DAEMON | other system daemons |
| LOG_KERN | kernel messages |
| LOG_LOCAL0 ... LOG_LOCAL7 | reserved for local use, these are not available in Windows |
| LOG_LPR | line printer subsystem |
| LOG_MAIL | mail subsystem |
| LOG_NEWS | USENET news subsystem |
| LOG_SYSLOG | messages generated internally by syslogd |
| LOG_USER | generic user-level messages |
| LOG_UUCP | UUCP subsystem |
| Constant | Description |
|---|---|
| LOG_EMERG | system is unusable |
| LOG_ALERT | action must be taken immediately |
| LOG_CRIT | critical conditions |
| LOG_ERR | error conditions |
| LOG_WARNING | warning conditions |
| LOG_NOTICE | normal, but significant, condition |
| LOG_INFO | informational message |
| LOG_DEBUG | debug-level message |
| Constant | Description |
|---|---|
| DNS_A | IPv4 Address Resource |
| DNS_MX | Mail Exchanger Resource |
| DNS_CNAME | Alias (Canonical Name) Resource |
| DNS_NS | Authoritative Name Server Resource |
| DNS_PTR | Pointer Resource |
| DNS_HINFO | Host Info Resource (See IANA's » Operating System Names for the meaning of these values) |
| DNS_SOA | Start of Authority Resource |
| DNS_TXT | Text Resource |
| DNS_ANY | Any Resource Record. On most systems this returns all resource records, however it should not be counted upon for critical uses. Try DNS_ALL instead. |
| DNS_AAAA | IPv6 Address Resource |
| DNS_ALL | Iteratively query the name server for each available record type. |
Table of Contents
- checkdnsrr — Check DNS records corresponding to a given Internet host name or IP address
- closelog — Close connection to system logger
- debugger_off — Disable internal PHP debugger (PHP 3)
- debugger_on — Enable internal PHP debugger (PHP 3)
- define_syslog_variables — Initializes all syslog related constants
- dns_check_record — Alias van checkdnsrr
- dns_get_mx — Alias van getmxrr
- dns_get_record — Fetch DNS Resource Records associated with a hostname
- fsockopen — Open Internet or Unix domain socket connection
- gethostbyaddr — Get the Internet host name corresponding to a given IP address
- gethostbyname — Get the IP address corresponding to a given Internet host name
- gethostbynamel — Get a list of IP addresses corresponding to a given Internet host name
- getmxrr — Get MX records corresponding to a given Internet host name
- getprotobyname — Get protocol number associated with protocol name
- getprotobynumber — Get protocol name associated with protocol number
- getservbyname — Get port number associated with an Internet service and protocol
- getservbyport — Get Internet service which corresponds to port and protocol
- header — Send a raw HTTP header
- headers_list — Returns a list of response headers sent (or ready to send)
- headers_sent — Checks if or where headers have been sent
- inet_ntop — Converts a packed internet address to a human readable representation
- inet_pton — Converts a human readable IP address to its packed in_addr representation
- ip2long — Converts a string containing an (IPv4) Internet Protocol dotted address into a proper address
- long2ip — Converts an (IPv4) Internet network address into a string in Internet standard dotted format
- openlog — Open connection to system logger
- pfsockopen — Open persistent Internet or Unix domain socket connection
- setcookie — Send a cookie
- setrawcookie — Send a cookie without urlencoding the cookie value
- socket_get_status — Alias van stream_get_meta_data
- socket_set_blocking — Alias van stream_set_blocking
- socket_set_timeout — Alias van stream_set_timeout
- syslog — Generate a system log message