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

Substitution

Processing...

Code Generator

Language

Generated Code

$re = '/<div class="category-gallery-item">\n(?:.*)<a href="\/wiki\/[^"]*" title="[^"]*">\n(?:.*)<div class="category-gallery-item-image">\n(?:.*)https:\/\/images\.wikia\.nocookie\.net\/(?:.*)\/americanhorrorstory\/images\/thumb\/(?P<filepath>[^\/]\/[^\/]{2}\/[^\/]*)\/(?:.*)\n(?:.*)\n(?:.*)<div class="title">(?P<title>[^\n]*)<\/div>\n\s*<\/a>\n\s*<\/div>/m'; $str = '<div class="category-gallery-room1"> <div class="category-gallery-item"> <a href="/wiki/Tate_Langdon" title="Tate Langdon"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20170918121337/americanhorrorstory/images/thumb/6/6a/MurderHouse3.jpg/130px-0%2C1879%2C30%2C1692-MurderHouse3.jpg" alt="Tate Langdon" width="130" height="115"> </div> <div class="title">Tate Langdon</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Constance_Langdon" title="Constance Langdon"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20170901150853/americanhorrorstory/images/thumb/0/01/Scnet_ahs_promos01_019.jpg/130px-0%2C1881%2C32%2C1696-Scnet_ahs_promos01_019.jpg" alt="Constance Langdon" width="130" height="115"> </div> <div class="title">Constance Langdon</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Infantata" title="Infantata"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20140211011227/americanhorrorstory/images/thumb/8/8a/Infantata-benjamin-woolf-american-horror-story-3.png/130px-139%2C616%2C0%2C421-Infantata-benjamin-woolf-american-horror-story-3.png" alt="Infantata" width="130" height="115"> </div> <div class="title">Infantata</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Moira_O%27Hara" title="Moira O\'Hara"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20161118211513/americanhorrorstory/images/thumb/1/11/Moira_double.jpg/130px-0%2C250%2C5%2C226-Moira_double.jpg" alt="Moira O\'Hara" width="130" height="115"> </div> <div class="title">Moira O\'Hara</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Vivien_Harmon" title="Vivien Harmon"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20170901162145/americanhorrorstory/images/thumb/9/92/02e87f12aa77ee5561190934d0563538.jpg/130px-0%2C2033%2C35%2C1833-02e87f12aa77ee5561190934d0563538.jpg" alt="Vivien Harmon" width="130" height="115"> </div> <div class="title">Vivien Harmon</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Billie_Dean_Howard" title="Billie Dean Howard"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20161016014729/americanhorrorstory/images/thumb/d/d8/Billie_Dean_Howard_-_Hotel.jpg/130px-75%2C528%2C0%2C400-Billie_Dean_Howard_-_Hotel.jpg" alt="Billie Dean Howard" width="130" height="115"> </div> <div class="title">Billie Dean Howard</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Violet_Harmon" title="Violet Harmon"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20170831083449/americanhorrorstory/images/thumb/d/d4/Taissa-farmiga-as-violet-harmon-in-american-horror-story-1.jpg/130px-0%2C390%2C6%2C351-Taissa-farmiga-as-violet-harmon-in-american-horror-story-1.jpg" alt="Violet Harmon" width="130" height="115"> </div> <div class="title">Violet Harmon</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Hayden_McClaine" title="Hayden McClaine"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20121211204512/americanhorrorstory/images/thumb/9/97/Download_%288%29.jpg/130px-156%2C700%2C0%2C480-Download_%288%29.jpg" alt="Hayden McClaine" width="130" height="115"> </div> <div class="title">Hayden McClaine</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Ben_Harmon" title="Ben Harmon"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20170901161948/americanhorrorstory/images/thumb/4/45/Scnet_ahs_promos01_001.jpg/130px-0%2C1573%2C28%2C1420-Scnet_ahs_promos01_001.jpg" alt="Ben Harmon" width="130" height="115"> </div> <div class="title">Ben Harmon</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Beauregard_Langdon" title="Beauregard Langdon"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20121029040849/americanhorrorstory/images/thumb/7/78/Beau2.png/130px-161%2C916%2C0%2C667-Beau2.png" alt="Beauregard Langdon" width="130" height="115"> </div> <div class="title">Beauregard Langdon</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Adelaide_Langdon" title="Adelaide Langdon"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20170901143540/americanhorrorstory/images/thumb/1/10/Scnet_ahs_promos01_025.jpg/130px-0%2C1805%2C29%2C1626-Scnet_ahs_promos01_025.jpg" alt="Adelaide Langdon" width="130" height="115"> </div> <div class="title">Adelaide Langdon</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Larry_Harvey" title="Larry Harvey"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20170831083606/americanhorrorstory/images/thumb/d/d0/American-horror-story-denis-ohare-4.jpg/130px-0%2C540%2C9%2C487-American-horror-story-denis-ohare-4.jpg" alt="Larry Harvey" width="130" height="115"> </div> <div class="title">Larry Harvey</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Nora_Montgomery" title="Nora Montgomery"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20140212014448/americanhorrorstory/images/thumb/9/9f/Tumblr_mm7qwzHIgM1rjrfw0o1_500.png/130px-94%2C410%2C0%2C279-Tumblr_mm7qwzHIgM1rjrfw0o1_500.png" alt="Nora Montgomery" width="130" height="115"> </div> <div class="title">Nora Montgomery</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Charles_Montgomery" title="Charles Montgomery"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20171012044313/americanhorrorstory/images/thumb/1/1a/Montgomery.jpg/130px-0%2C503%2C9%2C454-Montgomery.jpg" alt="Charles Montgomery" width="130" height="115"> </div> <div class="title">Charles Montgomery</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Hugo_Langdon" title="Hugo Langdon"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20121028001711/americanhorrorstory/images/thumb/0/02/Hugo.png/130px-0%2C663%2C10%2C597-Hugo.png" alt="Hugo Langdon" width="130" height="115"> </div> <div class="title">Hugo Langdon</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Travis_Wanderly" title="Travis Wanderly"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20111222045635/americanhorrorstory/images/thumb/e/ee/AmericanHorrorStory-travis.jpg/130px-0%2C287%2C4%2C258-AmericanHorrorStory-travis.jpg" alt="Travis Wanderly" width="130" height="115"> </div> <div class="title">Travis Wanderly</div> </a> </div> </div> <div class="category-gallery-room1" style="margin-left: 0px;"><div class="category-gallery-item"> <a href="/wiki/Rubber_Man" title="Rubber Man"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20111216004411/americanhorrorstory/images/thumb/6/61/Ahs1120005_595.jpg/130px-0%2C396%2C8%2C358-Ahs1120005_595.jpg" alt="Rubber Man" width="130" height="115"> </div> <div class="title">Rubber Man</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Elizabeth_Short" title="Elizabeth Short"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20121024055325/americanhorrorstory/images/thumb/d/d6/Dahlia2.png/130px-0%2C569%2C10%2C513-Dahlia2.png" alt="Elizabeth Short" width="130" height="115"> </div> <div class="title">Elizabeth Short</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Chad_Warwick" title="Chad Warwick"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20111105101300/americanhorrorstory/images/thumb/c/cf/Chad.jpg/130px-0%2C719%2C9%2C645-Chad.jpg" alt="Chad Warwick" width="130" height="115"> </div> <div class="title">Chad Warwick</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Marcy" title="Marcy"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20151004153134/americanhorrorstory/images/thumb/8/83/Marcy.jpg/130px-180%2C832%2C0%2C576-Marcy.jpg" alt="Marcy" width="130" height="115"> </div> <div class="title">Marcy</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Troy_and_Bryan" title="Troy and Bryan"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20121104143121/americanhorrorstory/images/thumb/6/61/Images_%2835%29.jpg/130px-234%2C1049%2C0%2C720-Images_%2835%29.jpg" alt="Troy and Bryan" width="130" height="115"> </div> <div class="title">Troy and Bryan</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Hallie" title="Hallie"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20121115111401/americanhorrorstory/images/thumb/b/b5/Hallie.jpg/130px-0%2C378%2C7%2C341-Hallie.jpg" alt="Hallie" width="130" height="115"> </div> <div class="title">Hallie</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Patrick" title="Patrick"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20111105101725/americanhorrorstory/images/thumb/4/40/Pat_2.jpg/130px-0%2C523%2C9%2C472-Pat_2.jpg" alt="Patrick" width="130" height="115"> </div> <div class="title">Patrick</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Leah" title="Leah"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20111023041839/americanhorrorstory/images/thumb/c/cd/Leah.jpg/130px-148%2C663%2C0%2C455-Leah.jpg" alt="Leah" width="130" height="115"> </div> <div class="title">Leah</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Lorraine_Harvey" title="Lorraine Harvey"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20111117175740/americanhorrorstory/images/thumb/0/0d/Lorraineharveybio.jpg/130px-27%2C411%2C0%2C339-Lorraineharveybio.jpg" alt="Lorraine Harvey" width="130" height="115"> </div> <div class="title">Lorraine Harvey</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Luke_(Murder_House)" title="Luke (Murder House)"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20121027065901/americanhorrorstory/images/thumb/4/4f/Luke.png/130px-0%2C524%2C9%2C473-Luke.png" alt="Luke (Murder House)" width="130" height="115"> </div> <div class="title">Luke (Murder House)</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/R._Franklin" title="R. Franklin"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20121027184749/americanhorrorstory/images/thumb/3/37/Franklin.png/130px-0%2C374%2C9%2C340-Franklin.png" alt="R. Franklin" width="130" height="115"> </div> <div class="title">R. Franklin</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Jack_Colquitt" title="Jack Colquitt"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20121028070935/americanhorrorstory/images/thumb/4/46/Jack.png/130px-250%2C1119%2C0%2C768-Jack.png" alt="Jack Colquitt" width="130" height="115"> </div> <div class="title">Jack Colquitt</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Dr._Hall" title="Dr. Hall"> <div class="category-gallery-item-image"> <img src="https://images.wikia.nocookie.net/__cb20130122041507/americanhorrorstory/images/thumb/b/b4/Hall.png/130px-0%2C691%2C9%2C620-Hall.png" alt="Dr. Hall" width="130" height="115"> </div> <div class="title">Dr. Hall</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Amir_Stanley" title="Amir Stanley"> <div class="category-gallery-item-image"> <div class="snippet"> <span class="quote">“</span> <span class="text">REDIRECT Westfield High/Massacre#Amir Stanley This is a redirect from a character link. In other...</span> </div> </div> <div class="title">Amir Stanley</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Angela_Harvey" title="Angela Harvey"> <div class="category-gallery-item-image"> <div class="snippet"> <span class="quote">“</span> <span class="text">REDIRECT Lorraine Harvey#Angela Harvey This is a redirect from a character link. In other words...</span> </div> </div> <div class="title">Angela Harvey</div> </a> </div> <div class="category-gallery-item"> <a href="/wiki/Angie" title="Angie"> <div class="category-gallery-item-image"> <div class="snippet"> <span class="quote">“</span> <span class="text">REDIRECT Piggy Piggy#Angie This is a redirect from a character link. In other words, this is a...</span> </div> </div> <div class="title">Angie</div> </a> </div> </div>'; $subst = "${title} https://vignette.wikia.nocookie.net/americanhorrorstory/images/${filepath}/revision/latest/"; $result = preg_replace($re, $subst, $str); echo "The result of the substitution is ".$result;

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