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 = '/"geo":\{"type":"Point","coordinates":\[(?P<latitude>[^,\]\}]+),(?P<longitude>[\d\.\-]+)/'; $str = '{"created_at":"Thu Jul 16 04:46:24 +0000 2015","id":621541368599457792,"id_str":"621541368599457792","text":"k imma shower and gn \\n\\ud83d\\ude2a matthew have fun wwith your \\"fans \\" babe \\ud83d\\udc94","source":"\\u003ca href=\\"http:\\/\\/twitter.com\\/download\\/iphone\\" rel=\\"nofollow\\"\\u003eTwitter for iPhone\\u003c\\/a\\u003e","truncated":false,"in_reply_to_status_id":null,"in_reply_to_status_id_str":null,"in_reply_to_user_id":null,"in_reply_to_user_id_str":null,"in_reply_to_screen_name":null,"user":{"id":2842045238,"id_str":"2842045238","name":"d-u-y-e-n","screen_name":"_duyxnny_","location":"\\u2708\\ufe0friverside,california - ","url":"http:\\/\\/twitter.com\\/_duyxnny_\\/status\\/610692899173302273","description":"im ugly ...","protected":false,"verified":false,"followers_count":605,"friends_count":368,"listed_count":9,"favourites_count":19255,"statuses_count":15125,"created_at":"Mon Oct 06 06:24:26 +0000 2014","utc_offset":-25200,"time_zone":"Pacific Time (US & Canada)","geo_enabled":true,"lang":"en","contributors_enabled":false,"is_translator":false,"profile_background_color":"3B94D9","profile_background_image_url":"http:\\/\\/pbs.twimg.com\\/profile_background_images\\/598623992367304705\\/IsZyk_eZ.jpg","profile_background_image_url_https":"https:\\/\\/pbs.twimg.com\\/profile_background_images\\/598623992367304705\\/IsZyk_eZ.jpg","profile_background_tile":true,"profile_link_color":"9266CC","profile_sidebar_border_color":"000000","profile_sidebar_fill_color":"000000","profile_text_color":"000000","profile_use_background_image":true,"profile_image_url":"http:\\/\\/pbs.twimg.com\\/profile_images\\/621199859144495105\\/G8x0fMV-_normal.jpg","profile_image_url_https":"https:\\/\\/pbs.twimg.com\\/profile_images\\/621199859144495105\\/G8x0fMV-_normal.jpg","profile_banner_url":"https:\\/\\/pbs.twimg.com\\/profile_banners\\/2842045238\\/1436912478","default_profile":false,"default_profile_image":false,"following":null,"follow_request_sent":null,"notifications":null},"geo":{"type":"Point","coordinates":[33.958571,-117.434168]},"coordinates":{"type":"Point","coordinates":[-117.434168,33.958571]},"place":{"id":"6ba08e404aed471f","url":"https:\\/\\/api.twitter.com\\/1.1\\/geo\\/id\\/6ba08e404aed471f.json","place_type":"city","name":"Riverside","full_name":"Riverside, CA","country_code":"US","country":"United States","bounding_box":{"type":"Polygon","coordinates":[[[-117.523867,33.85216],[-117.523867,39.79369],[-84.097028,39.79369],[-84.097028,33.85216]]]},"attributes":{}},"contributors":null,"retweet_count":0,"favorite_count":0,"entities":{"hashtags":[],"trends":[],"urls":[],"user_mentions":[],"symbols":[]},"favorited":false,"retweeted":false,"possibly_sensitive":false,"filter_level":"low","lang":"en","timestamp_ms":"1437021984611"}'; 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