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

$re = '/\s*([\w ]+):\s*("(?:\\\\"[^,]|\\\\"|\\\\|[^\"])+"|[^,]*)(?:,|$)/m'; $str = '1girl Negative prompt: art by xynon-bad-11k-2 Steps: 24, Sampler: DPM++ 2M Karras, CFG scale: 7, Seed: 425230810, Size: 640x640, Model hash: b836e500e5, Model: silica_base2-rebasin, Denoising strength: 0.5, CFG Rescale phi: 0, Hires upscale: 1.6, Hires steps: 14, Hires upscaler: 4x_DPED, TI hashes: "xynon-bad-11k-2: 796c84e2a27c", ComfyUI Workflows: "{\\"postprocess_latent\\": {\\"last_node_id\\": 22, \\"last_link_id\\": 330, \\"nodes\\": [{\\"id\\": 4, \\"type\\": \\"ToWebui\\", \\"pos\\": [937, 80], \\"size\\": [240, 60], \\"flags\\": {\\"collapsed\\": true}, \\"order\\": 10, \\"mode\\": 0, \\"inputs\\": [{\\"name\\": \\"LATENT\\", \\"type\\": \\"LATENT\\", \\"link\\": 85}], \\"properties\\": {\\"Node name for S&R\\": \\"ToWebui\\"}}, {\\"id\\": 3, \\"type\\": \\"FromWebui\\", \\"pos\\": [-123, 110], \\"size\\": [240, 60], \\"flags\\": {\\"collapsed\\": true}, \\"order\\": 0, \\"mode\\": 0, \\"outputs\\": [{\\"name\\": \\"LATENT\\", \\"type\\": \\"LATENT\\", \\"links\\": [18, 20, 108], \\"shape\\": 3, \\"slot_index\\": 0}], \\"properties\\": {\\"Node name for S&R\\": \\"FromWebui\\"}, \\"widgets_values\\": [\\"0.80553704976941531692335377331\\"]}, {\\"id\\": 13, \\"type\\": \\"VAEDecode\\", \\"pos\\": [2344, 364], \\"size\\": {\\"0\\": 210, \\"1\\": 46}, \\"flags\\": {\\"collapsed\\": true}, \\"order\\": 9, \\"mode\\": 0, \\"inputs\\": [{\\"name\\": \\"samples\\", \\"type\\": \\"LATENT\\", \\"link\\": 35, \\"slot_index\\": 0}, {\\"name\\": \\"vae\\", \\"type\\": \\"VAE\\", \\"link\\": 326}], \\"outputs\\": [{\\"name\\": \\"IMAGE\\", \\"type\\": \\"IMAGE\\", \\"links\\": [17], \\"shape\\": 3, \\"slot_index\\": 0}], \\"properties\\": {\\"Node name for S&R\\": \\"VAEDecode\\"}}, {\\"id\\": 12, \\"type\\": \\"VAEDecode\\", \\"pos\\": [1798, 365], \\"size\\": {\\"0\\": 210, \\"1\\": 46}, \\"flags\\": {\\"collapsed\\": true}, \\"order\\": 5, \\"mode\\": 0, \\"inputs\\": [{\\"name\\": \\"samples\\", \\"type\\": \\"LATENT\\", \\"link\\": 13, \\"slot_index\\": 0}, {\\"name\\": \\"vae\\", \\"type\\": \\"VAE\\", \\"link\\": 325}], \\"outputs\\": [{\\"name\\": \\"IMAGE\\", \\"type\\": \\"IMAGE\\", \\"links\\": [12], \\"shape\\": 3, \\"slot_index\\": 0}], \\"properties\\": {\\"Node name for S&R\\": \\"VAEDecode\\"}}, {\\"id\\": 16, \\"type\\": \\"VAEDecode\\", \\"pos\\": [1252, 361], \\"size\\": {\\"0\\": 210, \\"1\\": 46}, \\"flags\\": {\\"collapsed\\": true}, \\"order\\": 2, \\"mode\\": 0, \\"inputs\\": [{\\"name\\": \\"samples\\", \\"type\\": \\"LATENT\\", \\"link\\": 20, \\"slot_index\\": 0}, {\\"name\\": \\"vae\\", \\"type\\": \\"VAE\\", \\"link\\": 324, \\"slot_index\\": 1}], \\"outputs\\": [{\\"name\\": \\"IMAGE\\", \\"type\\": \\"IMAGE\\", \\"links\\": [19], \\"shape\\": 3, \\"slot_index\\": 0}], \\"properties\\": {\\"Node name for S&R\\": \\"VAEDecode\\"}}, {\\"id\\": 6, \\"type\\": \\"KSampler\\", \\"pos\\": [280, 320], \\"size\\": {\\"0\\": 315, \\"1\\": 474}, \\"flags\\": {}, \\"order\\": 3, \\"mode\\": 0, \\"inputs\\": [{\\"name\\": \\"model\\", \\"type\\": \\"MODEL\\", \\"link\\": 322}, {\\"name\\": \\"positive\\", \\"type\\": \\"CONDITIONING\\", \\"link\\": 327}, {\\"name\\": \\"negative\\", \\"type\\": \\"CONDITIONING\\", \\"link\\": 329}, {\\"name\\": \\"latent_image\\", \\"type\\": \\"LATENT\\", \\"link\\": 18}], \\"outputs\\": [{\\"name\\": \\"LATENT\\", \\"type\\": \\"LATENT\\", \\"links\\": [13, 109], \\"shape\\": 3, \\"slot_index\\": 0}], \\"properties\\": {\\"Node name for S&R\\": \\"KSampler\\"}, \\"widgets_values\\": [0, \\"fixed\\", 24, 7, \\"dpmpp_2m\\", \\"karras\\", 0.75]}, {\\"id\\": 22, \\"type\\": \\"LatentMix_AS\\", \\"pos\\": [479, -29], \\"size\\": {\\"0\\": 315, \\"1\\": 78}, \\"flags\\": {}, \\"order\\": 6, \\"mode\\": 0, \\"inputs\\": [{\\"name\\": \\"samples_to\\", \\"type\\": \\"LATENT\\", \\"link\\": 108}, {\\"name\\": \\"samples_from\\", \\"type\\": \\"LATENT\\", \\"link\\": 109}], \\"outputs\\": [{\\"name\\": \\"LATENT\\", \\"type\\": \\"LATENT\\", \\"links\\": [110], \\"shape\\": 3, \\"slot_index\\": 0}], \\"properties\\": {\\"Node name for S&R\\": \\"LatentMix_AS\\"}, \\"widgets_values\\": [75]}, {\\"id\\": 15, \\"type\\": \\"PreviewImage\\", \\"pos\\": [1251, 399], \\"size\\": [534.216472512637, 557.6668966527877], \\"flags\\": {}, \\"order\\": 4, \\"mode\\": 0, \\"inputs\\": [{\\"name\\": \\"images\\", \\"type\\": \\"IMAGE\\", \\"link\\": 19, \\"slot_index\\": 0}], \\"properties\\": {\\"Node name for S&R\\": \\"PreviewImage\\"}}, {\\"id\\": 11, \\"type\\": \\"PreviewImage\\", \\"pos\\": [1795, 405], \\"size\\": [516.968461609013, 545.2371885977157], \\"flags\\": {}, \\"order\\": 7, \\"mode\\": 0, \\"inputs\\": [{\\"name\\": \\"images\\", \\"type\\": \\"IMAGE\\", \\"link\\": 12}], \\"properties\\": {\\"Node name for S&R\\": \\"PreviewImage\\"}}, {\\"id\\": 14, \\"type\\": \\"PreviewImage\\", \\"pos\\": [2333, 400], \\"size\\": [519.1521322304691, 556.8946847014162], \\"flags\\": {}, \\"order\\": 11, \\"mode\\": 0, \\"inputs\\": [{\\"name\\": \\"images\\", \\"type\\": \\"IMAGE\\", \\"link\\": 17, \\"slot_index\\": 0}], \\"properties\\": {\\"Node name for S&R\\": \\"PreviewImage\\"}}, {\\"id\\": 20, \\"type\\": \\"KSampler\\", \\"pos\\": [898, 628], \\"size\\": {\\"0\\": 315, \\"1\\": 474}, \\"flags\\": {}, \\"order\\": 8, \\"mode\\": 0, \\"inputs\\": [{\\"name\\": \\"model\\", \\"type\\": \\"MODEL\\", \\"link\\": 323}, {\\"name\\": \\"positive\\", \\"type\\": \\"CONDITIONING\\", \\"link\\": 328}, {\\"name\\": \\"negative\\", \\"type\\": \\"CONDITIONING\\", \\"link\\": 330}, {\\"name\\": \\"latent_image\\", \\"type\\": \\"LATENT\\", \\"link\\": 110}], \\"outputs\\": [{\\"name\\": \\"LATENT\\", \\"type\\": \\"LATENT\\", \\"links\\": [35, 85], \\"shape\\": 3, \\"slot_index\\": 0}], \\"properties\\": {\\"Node name for S&R\\": \\"KSampler\\"}, \\"widgets_values\\": [1, \\"fixed\\", 24, 9, \\"dpmpp_2m\\", \\"karras\\", 0.55]}, {\\"id\\": 19, \\"type\\": \\"WebuiParams\\", \\"pos\\": [-293, 223.00000000000003], \\"size\\": {\\"0\\": 315, \\"1\\": 186}, \\"flags\\": {\\"collapsed\\": false}, \\"order\\": 1, \\"mode\\": 0, \\"inputs\\": [], \\"outputs\\": [{\\"name\\": \\"MODEL\\", \\"type\\": \\"MODEL\\", \\"links\\": [322, 323], \\"shape\\": 3, \\"slot_index\\": 0}, {\\"name\\": \\"VAE\\", \\"type\\": \\"VAE\\", \\"links\\": [324, 325, 326], \\"shape\\": 3, \\"slot_index\\": 1}, {\\"name\\": \\"CONDITIONING\\", \\"type\\": \\"CONDITIONING\\", \\"links\\": [327, 328], \\"shape\\": 3, \\"slot_index\\": 2}, {\\"name\\": \\"CONDITIONING\\", \\"type\\": \\"CONDITIONING\\", \\"links\\": [329, 330], \\"shape\\": 3, \\"slot_index\\": 3}], \\"title\\": \\"WebuiParams\\", \\"properties\\": {\\"nestedData\\": {\\"nestedNodes\\": [{\\"id\\": 7, \\"type\\": \\"WebuiCheckpointLoader\\", \\"pos\\": [-641.75, 129.62500000000006], \\"size\\": {\\"0\\": 315, \\"1\\": 98}, \\"flags\\": {\\"collapsed\\": false}, \\"order\\": 1, \\"mode\\": 0, \\"outputs\\": [{\\"name\\": \\"MODEL\\", \\"type\\": \\"MODEL\\", \\"links\\": [313, 314], \\"shape\\": 3, \\"slot_index\\": 0}, {\\"name\\": \\"CLIP\\", \\"type\\": \\"CLIP\\", \\"links\\": [311, 312], \\"shape\\": 3, \\"slot_index\\": 1}, {\\"name\\": \\"VAE\\", \\"type\\": \\"VAE\\", \\"links\\": [315, 316, 317], \\"shape\\": 3, \\"slot_index\\": 2}], \\"properties\\": {\\"Node name for S&R\\": \\"WebuiCheckpointLoader\\"}, \\"widgets_values\\": [\\"0.8629134962031651692335312135\\"]}, {\\"id\\": 8, \\"type\\": \\"WebuiPrompts\\", \\"pos\\": [-538.75, 288.45833333333337], \\"size\\": {\\"0\\": 315, \\"1\\": 78}, \\"flags\\": {\\"collapsed\\": false}, \\"order\\": 2, \\"mode\\": 0, \\"outputs\\": [{\\"name\\": \\"positive\\", \\"type\\": \\"STRING\\", \\"links\\": [309], \\"shape\\": 3, \\"slot_index\\": 0}, {\\"name\\": \\"negative\\", \\"type\\": \\"STRING\\", \\"links\\": [310], \\"shape\\": 3, \\"slot_index\\": 1}], \\"properties\\": {\\"Node name for S&R\\": \\"WebuiPrompts\\"}, \\"widgets_values\\": [\\"0.73159882442417671692335312135\\"]}, {\\"id\\": 10, \\"type\\": \\"CLIPTextEncode\\", \\"pos\\": [1.25, 173.45833333333337], \\"size\\": {\\"0\\": 210, \\"1\\": 54}, \\"flags\\": {\\"collapsed\\": false}, \\"order\\": 5, \\"mode\\": 0, \\"inputs\\": [{\\"name\\": \\"clip\\", \\"type\\": \\"CLIP\\", \\"link\\": 311}, {\\"name\\": \\"text\\", \\"type\\": \\"STRING\\", \\"link\\": 309, \\"widget\\": {\\"name\\": \\"text\\", \\"config\\": [\\"STRING\\", {\\"multiline\\": true}]}}], \\"outputs\\": [{\\"name\\": \\"CONDITIONING\\", \\"type\\": \\"CONDITIONING\\", \\"links\\": [318, 319], \\"shape\\": 3, \\"slot_index\\": 0}], \\"properties\\": {\\"Node name for S&R\\": \\"CLIPTextEncode\\"}, \\"widgets_values\\": [\\"\\"]}, {\\"id\\": 21, \\"type\\": \\"CLIPTextEncode\\", \\"pos\\": [7.25, 300.45833333333337], \\"size\\": {\\"0\\": 210, \\"1\\": 54}, \\"flags\\": {\\"collapsed\\": false}, \\"order\\": 6, \\"mode\\": 0, \\"inputs\\": [{\\"name\\": \\"clip\\", \\"type\\": \\"CLIP\\", \\"link\\": 312}, {\\"name\\": \\"text\\", \\"type\\": \\"STRING\\", \\"link\\": 310, \\"widget\\": {\\"name\\": \\"text\\", \\"config\\": [\\"STRING\\", {\\"multiline\\": true}]}}], \\"outputs\\": [{\\"name\\": \\"CONDITIONING\\", \\"type\\": \\"CONDITIONING\\", \\"links\\": [320, 321], \\"shape\\": 3, \\"slot_index\\": 0}], \\"properties\\": {\\"Node name for S&R\\": \\"CLIPTextEncode\\"}, \\"widgets_values\\": [\\"\\"]}]}}, \\"widgets_values\\": [\\"0.81786936757995141692335377331\\", \\"0.59144547180798461692335377331\\", \\"\\", \\"\\"]}], \\"links\\": [[12, 12, 0, 11, 0, \\"IMAGE\\"], [13, 6, 0, 12, 0, \\"LATENT\\"], [17, 13, 0, 14, 0, \\"IMAGE\\"], [18, 3, 0, 6, 3, \\"LATENT\\"], [19, 16, 0, 15, 0, \\"IMAGE\\"], [20, 3, 0, 16, 0, \\"LATENT\\"], [35, 20, 0, 13, 0, \\"LATENT\\"], [85, 20, 0, 4, 0, \\"LATENT\\"], [108, 3, 0, 22, 0, \\"LATENT\\"], [109, 6, 0, 22, 1, \\"LATENT\\"], [110, 22, 0, 20, 3, \\"LATENT\\"], [322, 19, 0, 6, 0, \\"MODEL\\"], [323, 19, 0, 20, 0, \\"MODEL\\"], [324, 19, 1, 16, 1, \\"VAE\\"], [325, 19, 1, 12, 1, \\"VAE\\"], [326, 19, 1, 13, 1, \\"VAE\\"], [327, 19, 2, 6, 1, \\"CONDITIONING\\"], [328, 19, 2, 20, 1, \\"CONDITIONING\\"], [329, 19, 3, 6, 2, \\"CONDITIONING\\"], [330, 19, 3, 20, 2, \\"CONDITIONING\\"]], \\"groups\\": [], \\"config\\": {}, \\"extra\\": {}, \\"version\\": 0.4}}", Version: v1.5.1-RC-12-g68f336bd'; 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