Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
Processing...

Test String

Code Generator

Language

Generated Code

$re = '/(Ethernet [^a]*adapter) (Local[^:]+):\n*(( +[^\n]+\n)*)/'; $str = ' Windows IP Configuration Host Name . . . . . . . . . . . . : Andrew-PC Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller Physical Address. . . . . . . . . : 00-24-1D-87-DE-E8 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::2d30:3157:776c:5d1%3(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.1.111(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 DHCPv6 IAID . . . . . . . . . . . : 234890269 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1C-A8-DF-09-00-24-1D-87-DE-E6 DNS Servers . . . . . . . . . . . : 75.75.75.75 75.75.76.76 NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter VMware Network Adapter VMnet1: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet1 Physical Address. . . . . . . . . : 00-50-56-C0-00-01 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::7877:2883:1349:6d38%10(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.107.1(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : Friday, February 26, 2016 7:31:41 AM Lease Expires . . . . . . . . . . : Friday, February 26, 2016 11:31:41 AM Default Gateway . . . . . . . . . : DHCP Server . . . . . . . . . . . : 192.168.107.254 DHCPv6 IAID . . . . . . . . . . . : 167792726 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1C-A8-DF-09-00-24-1D-87-DE-E6 DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1 fec0:0:0:ffff::2%1 fec0:0:0:ffff::3%1 NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter VMware Network Adapter VMnet8: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet8 Physical Address. . . . . . . . . : 00-50-56-C0-00-08 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::c57b:b161:5ed3:76ae%12(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.88.1(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : Friday, February 26, 2016 7:31:34 AM Lease Expires . . . . . . . . . . : Friday, February 26, 2016 11:31:33 AM Default Gateway . . . . . . . . . : DHCP Server . . . . . . . . . . . : 192.168.88.254 DHCPv6 IAID . . . . . . . . . . . : 201347158 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1C-A8-DF-09-00-24-1D-87-DE-E6 DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1 fec0:0:0:ffff::2%1 fec0:0:0:ffff::3%1 Primary WINS Server . . . . . . . : 192.168.88.2 NetBIOS over Tcpip. . . . . . . . : Enabled Tunnel adapter isatap.{9C26E507-7425-4DAB-BAC3-1E30E266D4DC}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter Teredo Tunneling Pseudo-Interface: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv6 Address. . . . . . . . . . . : 2001:0:9d38:6ab8:c9e:283d:9d3b:997e(Preferred) Link-local IPv6 Address . . . . . : fe80::c9e:283d:9d3b:997e%2(Preferred) Default Gateway . . . . . . . . . : :: DHCPv6 IAID . . . . . . . . . . . : 150994944 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1C-A8-DF-09-00-24-1D-87-DE-E6 NetBIOS over Tcpip. . . . . . . . : Disabled Tunnel adapter isatap.{403315D9-A3E6-46A0-8CA5-6372C24FF823}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.{B5708232-0F11-410B-930D-39D3A7908EAF}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Windows IP Configuration Host Name . . . . . . . . . . . . : Landen-Laptop Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No Wireless LAN adapter Wireless Network Connection: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Broadcom 802.11n Network Adapter Physical Address. . . . . . . . . : 00-1B-B1-AB-7E-74 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller Physical Address. . . . . . . . . : E8-11-32-2E-26-23 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::edba:a079:1244:b4b3%13(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.0.106(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : Friday, February 26, 2016 10:40:56 AM Lease Expires . . . . . . . . . . : Friday, February 26, 2016 12:40:55 PM Default Gateway . . . . . . . . . : 192.168.0.11 DHCP Server . . . . . . . . . . . : 192.168.0.11 DHCPv6 IAID . . . . . . . . . . . : 300421426 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1E-50-43-28-E8-11-32-2E-26-22 DNS Servers . . . . . . . . . . . : 208.67.222.123 208.67.220.123 NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter Bluetooth Network Connection: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network) Physical Address. . . . . . . . . : 00-1B-B1-FB-34-76 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.{1F3D3DAD-1D52-4329-9C52-58CD7B54C86A}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.{25CBD760-74ED-4CE7-8E1B-328A12335E7A}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.{4AC4D1F9-A993-4CBE-9CB8-414BD6853831}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Windows IP Configuration Host Name . . . . . . . . . . . . : PChuck1 Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Broadcast IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : pchuck.net Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : 3Com EtherLink XL 10/100 PCI For Complete PC Management NIC (3C905C-TX) Physical Address. . . . . . . . . : 00-04-76-D7-C5-6B Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IP Address. . . . . . . . . . . . : 192.168.1.59 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 DHCP Server . . . . . . . . . . . : 192.168.1.1 DNS Servers . . . . . . . . . . . : 192.168.1.11 192.168.1.33 Lease Obtained. . . . . . . . . . : Wednesday, April 16, 2003 11:19:12 Lease Expires . . . . . . . . . . : Wednesday, April 23, 2003 11:19:12 Windows IP Configuration Host Name . . . . . . . . . . . . : PChuck2 Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : pchuck.net Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : 3Com EtherLink XL 10/100 PCI For Complete PC Management NIC (3C905C-TX) Physical Address. . . . . . . . . : 00-04-76-D7-76-BC Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IP Address. . . . . . . . . . . . : 192.168.1.51 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 DHCP Server . . . . . . . . . . . : 192.168.1.1 DNS Servers . . . . . . . . . . . : 192.168.1.11 192.168.1.33 Primary WINS Server . . . . . . . : 192.168.1.1 Lease Obtained. . . . . . . . . . : Wednesday, April 16, 2003 11:53:45 Lease Expires . . . . . . . . . . : Wednesday, April 23, 2003 11:53:45'; preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0); // Print the entire match result var_dump($matches);

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php