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
No Match

/
/
s

Test String

Code Generator

Language

Generated Code

$re = '/(?:(?:ok|changed|fatal): \[)([A-Za-z0-9-.]+)(?:\]) => {\s+"msg": \[(.*?)\]\s+}/s'; $str = 'PLAY [Core Switch] ************************************************************* TASK [Mapping additional variables] ******************************************** ok: [acm-lab-core1.expedient.com] TASK [Setting the core number] ************************************************* ok: [acm-lab-core1.expedient.com] TASK [Create directory for configuration files] ******************************** ok: [acm-lab-core1.expedient.com] TASK [Render the trunk configuration] ****************************************** ok: [acm-lab-core1.expedient.com] TASK [Render the rollback configuration] *************************************** ok: [acm-lab-core1.expedient.com] TASK [register the configuration rendered to a variable3] ********************** changed: [acm-lab-core1.expedient.com] TASK [debug] ******************************************************************* ok: [acm-lab-core1.expedient.com] => { "msg": [ "interfaces {", " ae10 {", " unit 1001 {", " encapsulation vlan-bridge;", " vlan-id 1001;", " }", " unit 1002 {", " encapsulation vlan-vpls;", " vlan-id 1002;", " }", " }", " irb {", " unit 1001 {", " description \\\\\\\\\\"PUBLIC: Dunder Mifflin\\\\\\\\(/)\\";", " family inet {", " address 206.166.155.2/29 {", " vrrp-group 1001 {", " virtual-address 206.166.155.1;", " priority 200;", " fast-interval 500;", " no-preempt;", " accept-data;", " }", " } ", " }", " }", " } ", "}", "bridge-domains {", " VLAN1001 {", " vlan-id 1001;", " interface ae10.1001;", " routing-interface irb.1001;", " }", "}", "routing-instances {", " VPLS1002 {", " instance-type vpls;", " vlan-id 1002;", " interface ae10.1002;", " protocols {", " vpls {", " encapsulation-type ethernet-vlan;", " interface ae10.1002;", " no-tunnel-services;vpls-id 1062310;mtu 9216;", " neighbor 206.210.84.1;", " }", " }", " }", "}", "protocols {", " bgp {", " group DunderMiff-vsrx {", " type external;", " import [ tag-vsrx DunderMiff-in ];", " export default-only;", " peer-as 64512;", " neighbor 206.166.155.5;", " }", " }", "}", "policy-options {", " policy-statement DunderMiff-in {", " term customer-networks { ", " from {", " route-filter 2.2.1.0/24 exact;", " route-filter 2.2.1.0/24 exact;", " } ", " then accept; ", " } ", " term deny { ", " then reject; ", " } ", " } ", "}" ] } PLAY [Core Switch] ************************************************************* TASK [Mapping additional variables] ******************************************** ok: [acm-lab-core2.expedient.com] TASK [Setting the core number] ************************************************* ok: [acm-lab-core2.expedient.com] TASK [Create directory for configuration files] ******************************** ok: [acm-lab-core2.expedient.com] TASK [Render the trunk configuration] ****************************************** ok: [acm-lab-core2.expedient.com] TASK [Render the rollback configuration] *************************************** ok: [acm-lab-core2.expedient.com] TASK [register the configuration rendered to a variable3] ********************** changed: [acm-lab-core2.expedient.com] TASK [debug] ******************************************************************* ok: [acm-lab-core2.expedient.com] => { "msg": [ "interfaces {", " ae10 {", " unit 1001 {", " encapsulation vlan-bridge;", " vlan-id 1001;", " }", " unit 1002 {", " encapsulation vlan-vpls;", " vlan-id 1002;", " }", " }", " irb {", " unit 1001 {", " description \\\\\\\\\\"PUBLIC: Dunder Mifflin\\\\\\\\(/)\\";", " family inet {", " address 206.166.155.3/29 {", " vrrp-group 1001 {", " virtual-address 206.166.155.1;", " priority 100;", " fast-interval 500;", " no-preempt;", " accept-data;", " }", " } ", " }", " }", " } ", "}", "bridge-domains {", " VLAN1001 {", " vlan-id 1001;", " interface ae10.1001;", " routing-interface irb.1001;", " }", "}", "routing-instances {", " VPLS1002 {", " instance-type vpls;", " vlan-id 1002;", " interface ae10.1002;", " protocols {", " vpls {", " encapsulation-type ethernet-vlan;", " interface ae10.1002;", " no-tunnel-services;vpls-id 1062310;mtu 9216;", " neighbor 206.210.84.1;", " }", " }", " }", "}", "protocols {", " bgp {", " group DunderMiff-vsrx {", " type external;", " import [ tag-vsrx DunderMiff-in ];", " export default-only;", " peer-as 64512;", " neighbor 206.166.155.5;", " }", " }", "}", "policy-options {", " policy-statement DunderMiff-in {", " term customer-networks { ", " from {", " route-filter 2.2.1.0/24 exact;", " route-filter 2.2.1.0/24 exact;", " } ", " then accept; ", " } ", " term deny { ", " then reject; ", " } ", " } ", "}" ] } PLAY [Spine Switch] ************************************************************ TASK [Mapping additional variables] ******************************************** ok: [acm-lab-spine1.expedient.com] TASK [Render the trunk configuration] ****************************************** ok: [acm-lab-spine1.expedient.com] TASK [Render the rollback configuration] *************************************** ok: [acm-lab-spine1.expedient.com] TASK [Display the configuration rendered] ************************************** changed: [acm-lab-spine1.expedient.com] TASK [debug] ******************************************************************* ok: [acm-lab-spine1.expedient.com] => { "msg": [ "interfaces {", " ae0 {", " unit 1001 {", " vlan-id 1001;", " }", " unit 1002 {", " vlan-id 1002;", " } ", " }", " ae1 {", " unit 1001 {", " vlan-id 1001;", " }", " unit 1002 {", " vlan-id 1002;", " }", " }", "}", "vlans {", " VLAN1001 {", " vlan-id 1001;", " interface ae0.1001;", " interface ae1.1001;", " }", " VLAN1002 {", " vlan-id 1002;", " interface ae0.1002;", " interface ae1.1002;", " } ", "}" ] } TASK [No Deploy] *************************************************************** skipping: [acm-lab-spine1.expedient.com] TASK [debug] ******************************************************************* skipping: [acm-lab-spine1.expedient.com] PLAY [POD Switch] ************************************************************** TASK [Setting the interface range] ********************************************* ok: [acm-lab-pod1-sw.expedient.com] TASK [Mapping additional variables] ******************************************** ok: [acm-lab-pod1-sw.expedient.com] TASK [Render the trunk configuration] ****************************************** ok: [acm-lab-pod1-sw.expedient.com] TASK [Render the rollback configuration] *************************************** ok: [acm-lab-pod1-sw.expedient.com] TASK [Display the configuration rendered] ************************************** changed: [acm-lab-pod1-sw.expedient.com] TASK [debug] ******************************************************************* ok: [acm-lab-pod1-sw.expedient.com] => { "msg": [ "interfaces {", " interface-range DVS {", " unit 0 {", " family ethernet-switching {", " vlan {", " members 1001;", " members 1002;", " members 1111;", " }", " }", " }", " } ", " ae0 {", " unit 1001 {", " vlan-id 1001;", " }", " unit 1002 {", " vlan-id 1002;", " } ", " }", "}", "vlans {", " VLAN1001 {", " vlan-id 1001;", " interface ae0.1001;", " }", " VLAN1002 {", " vlan-id 1002;", " interface ae0.1002;", " }", " VLAN1111 {", " vlan-id 1111;", " }", "}" ] } PLAY [151-fw - Radius Authentication] ****************************************** TASK [Setting the interface range] ********************************************* ok: [151-fw-mgmt.expedient.com] TASK [Mapping additional variables] ******************************************** ok: [151-fw-mgmt.expedient.com] TASK [Render the trunk configuration] ****************************************** changed: [151-fw-mgmt.expedient.com] TASK [Render the rollback configuration] *************************************** changed: [151-fw-mgmt.expedient.com] TASK [Display the configuration rendered] ************************************** changed: [151-fw-mgmt.expedient.com] TASK [debug] ******************************************************************* ok: [151-fw-mgmt.expedient.com] => { "msg": [ "security {", " zones {", " security-zone untrust {", " address-book {", " address dunderhead-vsrx 1.1.1.1/32;", " address-set CUSTCBB-Auth-Expedient-Managed-Customer-FW {", " address dunderhead-vsrx;", " }", " }", " }", " }", "}" ] } PLAY [tdp-fw - Radius Authentication] ****************************************** TASK [Setting the interface range] ********************************************* ok: [tdp-fw-mgmt.expedient.com] TASK [Mapping additional variables] ******************************************** ok: [tdp-fw-mgmt.expedient.com] TASK [Render the trunk configuration] ****************************************** changed: [tdp-fw-mgmt.expedient.com] TASK [Render the rollback configuration] *************************************** changed: [tdp-fw-mgmt.expedient.com] TASK [Display the configuration rendered] ************************************** changed: [tdp-fw-mgmt.expedient.com] TASK [debug] ******************************************************************* ok: [tdp-fw-mgmt.expedient.com] => { "msg": [ "security {", " zones {", " security-zone untrust {", " address-book {", " address dunderhead-vsrx 1.1.1.1/32;", " address-set CUSTCBB-Auth-Expedient-Managed-Customer-FW {", " address dunderhead-vsrx;", " }", " }", " }", " }", "}" ] } PLAY RECAP ********************************************************************* 151-fw-mgmt.expedient.com : ok=6 changed=3 unreachable=0 failed=0 acm-lab-core1.expedient.com : ok=7 changed=1 unreachable=0 failed=0 acm-lab-core2.expedient.com : ok=7 changed=1 unreachable=0 failed=0 acm-lab-pod1-sw.expedient.com : ok=6 changed=1 unreachable=0 failed=0 acm-lab-spine1.expedient.com : ok=5 changed=1 unreachable=0 failed=0 tdp-fw-mgmt.expedient.com : ok=6 changed=3 unreachable=0 failed=0 '; preg_match($re, $str, $matches, PREG_OFFSET_CAPTURE, 0); // Print the entire match result var_dump($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