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

/
/
gm

Test String

Code Generator

Language

Generated Code

$re = '/<groupId>([^<]*)<\/groupId>\n[[:space:]]*<artifactId>([^<]*)<\/artifactId>\n[[:space:]]*<version>([^<]*)<\/version>/m'; $str = '<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.bluesoft.muleesb</groupId> <artifactId>Magellan23888Adapter</artifactId> <version>1.0.0-SNAPSHOT</version> <packaging>mule-application</packaging> <name>Magellan23888Adapter</name> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <app.runtime>4.3.0</app.runtime> <mule.maven.plugin.version>3.3.5</mule.maven.plugin.version> </properties> <build> <plugins> <plugin> <groupId>org.mule.tools.maven</groupId> <artifactId>mule-maven-plugin</artifactId> <version>${mule.maven.plugin.version}</version> <extensions>true</extensions> <configuration> <sharedLibraries> <sharedLibrary> <groupId>com.ibm.mq</groupId> <artifactId>com.ibm.mq.allclient</artifactId> </sharedLibrary> </sharedLibraries> <classifier>mule-application</classifier> </configuration> </plugin> </plugins> </build> <distributionManagement> <repository> <id>releases</id> <name>bluesoft releases</name> <url>http://nexus.bluesoft.com/repository/releases</url> </repository> <snapshotRepository> <id>snapshots</id> <name>bluesoft snapshots</name> <url>http://nexus.bluesoft.com/repository/snapshots</url> </snapshotRepository> </distributionManagement> <dependencies> <dependency> <groupId>com.mulesoft.connectors</groupId> <artifactId>mule-x12-connector</artifactId> <version>2.6.2</version> <classifier>mule-plugin</classifier> <exclusions> <exclusion> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-core</artifactId> </exclusion> <exclusion> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-api</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.mule.connectors</groupId> <artifactId>mule-objectstore-connector</artifactId> <version>1.1.7</version> <classifier>mule-plugin</classifier> </dependency> <dependency> <groupId>com.ibm.mq</groupId> <artifactId>com.ibm.mq.allclient</artifactId> <version>9.2.1.0</version> </dependency> <dependency> <groupId>org.mule.modules</groupId> <artifactId>mule-json-module</artifactId> <version>2.1.3</version> <classifier>mule-plugin</classifier> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.12.0</version> </dependency> <dependency> <groupId>org.mule.connectors</groupId> <artifactId>mule-http-connector</artifactId> <version>1.5.6</version> <classifier>mule-plugin</classifier> </dependency> <dependency> <groupId>org.mule.connectors</groupId> <artifactId>mule-file-connector</artifactId> <version>1.3.3</version> <classifier>mule-plugin</classifier> </dependency> <dependency> <groupId>com.mulesoft.connectors</groupId> <artifactId>mule-ibm-mq-connector</artifactId> <version>1.6.3</version> <classifier>mule-plugin</classifier> </dependency> <dependency> <groupId>org.mule.connectors</groupId> <artifactId>mule-sftp-connector</artifactId> <version>1.4.0</version> <classifier>mule-plugin</classifier> </dependency> <dependency> <groupId>com.mulesoft.modules</groupId> <artifactId>mule-secure-configuration-property-module</artifactId> <version>1.1.0</version> <classifier>mule-plugin</classifier> </dependency> <dependency> <groupId>org.mule.connectors</groupId> <artifactId>mule-email-connector</artifactId> <version>1.4.1</version> <classifier>mule-plugin</classifier> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-core</artifactId> <version>2.16.0</version> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-api</artifactId> <version>2.16.0</version> </dependency> </dependencies> <repositories> <repository> <id>bluesoft-nexus</id> <name>bluesoft Nexus</name> <url>https://nexus.bluesoft.com/content/groups/public</url> <layout>default</layout> </repository> </repositories> <pluginRepositories> <pluginRepository> <id>bluesoft-nexus-plugins</id> <name>bluesoft Nexus</name> <layout>default</layout> <url>https://nexus.bluesoft.com/content/groups/public</url> <snapshots> <enabled>false</enabled> </snapshots> </pluginRepository> </pluginRepositories> </project>'; 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