Regular Expressions 101

Save & Manage Regex

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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 = '/(\b[A-Za-z -]+?) : (.+? )/'; $str = 'DetailedLog 18.11.2015 14:41:35.299 Neutral : 0,5704 Happy : 0,6698 Sad : 0,0013 Angry : 0,0040 Surprised : 0,0129 Scared : 0,0007 Disgusted : 0,0048 Valence : 0,6650 Arousal : 0,2297 Gender : Male Age : 20 - 30 Beard : None Moustache : None Glasses : Yes Ethnicity : Caucasian Y - Head Orientation : -1,7628 X - Head Orientation : 2,5652 Z - Head Orientation : -3,0980 Landmarks : 375,4739 - 121,6879 - 383,2627 - 113,6502 - 390,8202 - 110,3507 - 396,1021 - 109,7039 - 404,9615 - 110,9594 - 443,2603 - 108,9765 - 451,9454 - 106,7192 - 457,1207 - 106,8835 - 464,1162 - 109,5496 - 470,9659 - 116,8992 - 387,4940 - 132,0171 - 406,4031 - 130,4482 - 441,6239 - 128,6356 - 460,6862 - 128,1997 - 419,0713 - 161,6479 - 425,3519 - 155,1223 - 431,9862 - 160,6411 - 406,9320 - 190,3831 - 411,4790 - 188,7656 - 423,1751 - 185,6583 - 428,5339 - 185,6882 - 433,7802 - 184,8167 - 445,6192 - 186,3515 - 450,8424 - 187,2787 - 406,0796 - 191,1880 - 411,9287 - 193,5352 - 417,9666 - 193,6567 - 424,0851 - 193,4941 - 428,6678 - 193,5652 - 433,2172 - 192,7540 - 439,3548 - 192,0136 - 445,4181 - 191,1532 - 451,6007 - 187,9486 - 404,5193 - 190,6352 - 412,8277 - 185,4609 - 421,1355 - 181,2883 - 428,3182 - 181,1826 - 435,2024 - 180,2258 - 443,9292 - 183,2533 - 453,1117 - 187,2288 - 405,9689 - 193,2750 - 410,0249 - 199,8118 - 416,0457 - 203,0374 - 423,4839 - 204,1818 - 429,9247 - 204,2175 - 436,3620 - 203,1305 - 443,4268 - 200,9355 - 448,9572 - 197,1335 - 452,0746 - 190,0314 Quality : 0,8137 Mouth : Closed Left Eye : Open Right Eye : Open Left Eyebrow : Lowered Right Eyebrow : Lowered Identity : NO IDENTIFICATION\''; preg_match_all($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