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

/
/
g

Test String

Code Generator

Language

Generated Code

$re = '/"\$name":\s"car.*_LOD_\s*\.*(?s)(.*)normal_map",\n\s*"\$type":\s"::bool",\n\s*"\$value":\s(false)/'; $str = ' }, { "$name": "car_Dodge_Viper_ACR_LOD_red", "$type": "@tts::editor::MaterialEntity", "$params": { "lightmapSpecificParams": { "shadowColor": { "$isSet": false, "$hasValue": false }, "normalMap": { "$isSet": false, "$hasValue": false }, "transparencyMap": { "$isSet": false, "$hasValue": false }, "diffuseMapOverride": { "$isSet": false, "$hasValue": false }, "diffuseColorOverride": { "$isSet": false, "$hasValue": false }, "normalMapUVChannelIdx": 1, "diffuseMapUVChannelIdx": 1, "emissiveMultiplier": 1.0, "singleSided": false }, "metashaderRef": { "is_initialized": true, "value": "resources/shaders/carpaint.jshader" }, "features": [ { "$name": "albedo_map", "$type": "::bool", "$value": true }, { "$name": "normal_map", "$type": "::bool", "$value": false }, { "$name": "roughness_map", "$type": "::bool", "$value": true }, { "$name": "occlusion_map", "$type": "::bool", "$value": true }, { "$name": "metalness_map", "$type": "::bool", "$value": true }, { "$name": "tint_map", "$type": "::bool", "$value": true },'; 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