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

/
/
i

Test String

Code Generator

Language

Generated Code

$re = '/(.\/)(\w+)(\/)/i'; $str = './www/corporate/students/policies/academic-integrity/index ./gsjs/news--events/news/creating-new-horizons ./gsjs/news--events/news/creating-new-horizons ./gsjs/news--events/news/lighting-the-spark ./gsjs/news--events/news/lighting-the-spark ./gsjs/news--events/news/the-untold-story-of-post-war-european-jewry- ./gsjs/news--events/news/the-untold-story-of-post-war-european-jewry- ./gsjs/news--events/featured/creating-new-horizons ./gsjs/news--events/featured/creating-new-horizons ./gsjs/news--events/featured/lighting-the-spark ./gsjs/news--events/featured/lighting-the-spark ./gsjs/news--events/featured/the-untold-story-of-post-war-european-jewry- ./gsjs/news--events/featured/the-untold-story-of-post-war-european-jewry- ./gse/news--events/stories/french-connection ./gse/news--events/stories/french-connection ./tourocop/news--events/news/ill-be-saving-lives ./tourocop/news--events/news/ill-be-saving-lives ./tourocop/news--events/news/bring-your-a-game ./tourocop/news--events/news/bring-your-a-game ./tourocop/news--events/featured/ill-be-saving-lives ./tourocop/news--events/featured/ill-be-saving-lives ./www/corporate/students/policies/academic-integrity/index ./www/corporate/students/policies/academic-integrity/index ./www/corporate/students/policies/academic-integrity/2012-2015-policy/index ./www/corporate/students/policies/academic-integrity/2012-2015-policy/index ./www/corporate/departments/academic-integrity/index ./www/corporate/departments/academic-integrity/index ./www/corporate/departments/web-communications/presentations/retreat-2014/index ./www/corporate/departments/web-communications/presentations/retreat-2014/index ./www/corporate/departments/web-communications/presentations/retreat-2014/index ./www/corporate/news/touro-in-the-news/where-were-you-the-day-jfk-died ./www/corporate/news/touro-in-the-news/where-were-you-the-day-jfk-died ./www/corporate/news/touro-in-the-news/post-traumatic-stress-disorder ./www/corporate/news/touro-in-the-news/post-traumatic-stress-disorder ./www/corporate/news/touro-in-the-news/post-traumatic-stress-disorder ./www/corporate/news/touro-in-the-news/post-traumatic-stress-disorder ./www/corporate/news/touro-in-the-news/halperin-uncovers-letter-from-19th-century-doctor-for-slaves ./www/corporate/news/touro-in-the-news/halperin-uncovers-letter-from-19th-century-doctor-for-slaves ./www/corporate/news/press-releases/tun-berkley-appt-121713 ./www/corporate/news/press-releases/tun-berkley-appt-121713 ./www/corporate/news/press-releases/lcw-nscy-scholarship-recipients-7-2-14 ./www/corporate/news/press-releases/lcw-nscy-scholarship-recipients-7-2-14 ./www/corporate/news/press-releases/gssw-community-day ./www/corporate/news/press-releases/gssw-community-day ./www/corporate/news/video-archive-featured/obamacare-and-halacha ./www/corporate/news/video-archive-featured/obamacare-and-halacha ./www/corporate/news/video-archive-featured/the-advocate ./www/corporate/news/video-archive-featured/the-advocate ./www/corporate/news/video-archive-featured/one-person-can-make-a-difference ./www/corporate/news/video-archive-featured/one-person-can-make-a-difference ./www/corporate/news/video-archive-featured/creating-new-horizons ./www/corporate/news/video-archive-featured/creating-new-horizons ./www/corporate/news/video-archive-featured/touro-college-graduate-school-of-social-work-hosts-educational-panel-for-asian-american-professionals- ./www/corporate/news/video-archive-featured/touro-college-graduate-school-of-social-work-hosts-educational-panel-for-asian-american-professionals- ./www/corporate/news/video-archive-featured/changing-peoples-lives ./www/corporate/news/video-archive-featured/changing-peoples-lives ./www/corporate/news/video-archive-featured/acts-of-goodness-and-kindness ./www/corporate/news/video-archive-featured/acts-of-goodness-and-kindness ./www/corporate/news/video-archive-featured/inner-strength ./www/corporate/news/video-archive-featured/inner-strength ./www/corporate/news/video-archive-featured/making-choices ./www/corporate/news/video-archive-featured/making-choices ./www/corporate/news/video-archive-featured/moshe-ornstein-ma-md-a-healing-factor ./www/corporate/news/video-archive-featured/moshe-ornstein-ma-md-a-healing-factor ./www/corporate/news/video-archive-featured/gabe-hershman-dds-putting-me-on-the-right-path ./www/corporate/news/video-archive-featured/gabe-hershman-dds-putting-me-on-the-right-path ./www/corporate/news/video-archive-featured/role-models ./www/corporate/news/video-archive-featured/role-models ./www/corporate/news/video-archive-featured/graduate-school-of-social-work-celebrates-diversity-during-community-day ./www/corporate/news/video-archive-featured/graduate-school-of-social-work-celebrates-diversity-during-community-day ./www/corporate/news/video-archive-featured/rabbi-sacks-investiture ./www/corporate/news/video-archive-featured/rabbi-sacks-investiture ./www/corporate/news/video-archive-featured/going-all-hanisim-out-to-celebrate-chanukah ./www/corporate/news/video-archive-featured/going-all-hanisim-out-to-celebrate-chanukah ./www/corporate/news/video-archive-featured/we-all-had-aspirations ./www/corporate/news/video-archive-featured/we-all-had-aspirations ./www/corporate/news/video-archive-featured/welcome-new-students ./www/corporate/news/video-archive-featured/welcome-new-students ./www/corporate/news/featured/the-advocate ./www/corporate/news/featured/the-advocate ./www/corporate/news/featured/french-connection ./www/corporate/news/featured/french-connection ./www/corporate/news/featured/take-it-with-you ./www/corporate/news/featured/take-it-with-you ./www/corporate/news/featured/to-the-tourocom-class-of-2014 ./www/corporate/news/featured/to-the-tourocom-class-of-2014 ./www/corporate/news/featured/opening-doors ./www/corporate/news/featured/opening-doors ./www/corporate/news/featured/to-the-lander-college-for-women-class-of-2014 ./www/corporate/news/featured/to-the-lander-college-for-women-class-of-2014 ./www/corporate/news/featured/touro-college-commemorates-76th-anniversary-of-kristallnacht ./www/corporate/news/featured/touro-college-commemorates-76th-anniversary-of-kristallnacht ./www/corporate/news/featured/congratulations-to-the-touro-law-class-of-2013 ./www/corporate/news/featured/congratulations-to-the-touro-law-class-of-2013 ./www/corporate/news/featured/gun-control-in-tc-south ./www/corporate/news/featured/gun-control-in-tc-south ./www/corporate/news/featured/911-one-person-can-make-a-difference ./www/corporate/news/featured/911-one-person-can-make-a-difference ./www/corporate/news/featured/living-life-to-its-fullest ./www/corporate/news/featured/living-life-to-its-fullest ./www/corporate/news/featured/preparing-tomorrows-innovators ./www/corporate/news/featured/preparing-tomorrows-innovators ./www/corporate/news/featured/being-a-motivator ./www/corporate/news/featured/being-a-motivator ./www/corporate/news/featured/changing-peoples-lives ./www/corporate/news/featured/changing-peoples-lives ./www/corporate/news/featured/acts-of-goodness-and-kindness ./www/corporate/news/featured/acts-of-goodness-and-kindness ./www/corporate/news/featured/inner-strength ./www/corporate/news/featured/inner-strength ./www/corporate/news/featured/moving-past-tragedy-and-crisis ./www/corporate/news/featured/moving-past-tragedy-and-crisis ./www/corporate/news/featured/welcome-to-the-lander-family ./www/corporate/news/featured/welcome-to-the-lander-family ./www/corporate/news/featured/fighting-the-flu ./www/corporate/news/featured/fighting-the-flu ./www/corporate/news/featured/role-models ./www/corporate/news/featured/role-models ./www/corporate/news/featured/line-and-verse ./www/corporate/news/featured/line-and-verse ./www/corporate/news/featured/welcome-to-the-touro-law-class-of-2017 ./www/corporate/news/featured/welcome-to-the-touro-law-class-of-2017 ./www/corporate/news/featured/welcome-incoming-lcw-class ./www/corporate/news/featured/welcome-incoming-lcw-class ./www/corporate/news/featured/welcome-tourocom-class-of-2018 ./www/corporate/news/featured/welcome-tourocom-class-of-2018 ./www/corporate/news/featured/medical-ethics-versus-halachic-obligation ./www/corporate/news/featured/medical-ethics-versus-halachic-obligation ./www/corporate/news/featured/lighting-the-spark ./www/corporate/news/featured/lighting-the-spark ./www/corporate/news/featured/bring-your-a-game ./www/corporate/news/featured/bring-your-a-game ./www/corporate/news/featured/we-all-had-aspirations ./www/corporate/news/featured/we-all-had-aspirations ./www/corporate/news/featured/celebrating-academic-publications ./www/corporate/news/featured/celebrating-academic-publications ./www/corporate/news/featured/giving-a-voice ./www/corporate/news/featured/giving-a-voice ./www/corporate/news/featured/to-the-tourocom-class-of-2017-breathe ./www/corporate/news/featured/to-the-tourocom-class-of-2017-breathe ./www/corporate/news/featured/to-the-lander-college-for-men-class-of-2014 ./www/corporate/news/featured/to-the-lander-college-for-men-class-of-2014 ./www/corporate/news/featured/stay-passionate ./www/corporate/news/featured/stay-passionate ./www/corporate/news/featured/graduate-school-of-technology-hosts-executive-forum- ./www/corporate/news/featured/graduate-school-of-technology-hosts-executive-forum- ./www/corporate/news/featured/lander-colleges-graduate ./www/corporate/news/featured/lander-colleges-graduate ./www/corporate/news/featured/md-to-be-or-not-to-be-a-halachic-perspective ./www/corporate/news/featured/md-to-be-or-not-to-be-a-halachic-perspective ./www2014/news/Touro-in-the-News/feed ./www2014/news/Touro-in-the-News/feed ./www2014/news/Touro-in-the-News/feed ./www2014/news/Touro-in-the-News/feed ./lcw/news--events/stories/lander-college-for-women-celebrates-national-poetry-month ./lcw/news--events/stories/lander-college-for-women-celebrates-national-poetry-month ./lcw/news--events/stories/the-little-things-make-all-the-difference ./lcw/news--events/stories/the-little-things-make-all-the-difference ./lcw/news--events/stories/to-the-lander-college-for-women-class-of-2014 ./lcw/news--events/stories/to-the-lander-college-for-women-class-of-2014 ./lcw/news--events/stories/ill-be-saving-lives ./lcw/news--events/stories/ill-be-saving-lives ./lcw/news--events/stories/lander-college-for-men-parents-faculty-staff-and-rebbeim-celebrate-with-the-2013-graduates-and-honor-their-achievement- ./lcw/news--events/stories/lander-college-for-men-parents-faculty-staff-and-rebbeim-celebrate-with-the-2013-graduates-and-honor-their-achievement- ./lcw/news--events/stories/line-and-verse ./lcw/news--events/stories/line-and-verse ./lcw/news--events/stories/welcome-incoming-lcw-class ./lcw/news--events/stories/welcome-incoming-lcw-class ./lcw/news--events/stories/medical-ethics-versus-halachic-obligation ./lcw/news--events/stories/medical-ethics-versus-halachic-obligation ./lcw/news--events/stories/panel-discusses-intricacies-of-patient-doctor-relationship-for-inaugural-touro-college-presidential-scholars-lecture-series- ./lcw/news--events/stories/panel-discusses-intricacies-of-patient-doctor-relationship-for-inaugural-touro-college-presidential-scholars-lecture-series- ./lcw/news--events/press-releases/lcw-nscy-scholarship-recipients-7-2-14 ./lcw/news--events/press-releases/lcw-nscy-scholarship-recipients-7-2-14 ./lcw/news--events/featured/the-little-things-make-all-the-difference ./lcw/news--events/featured/the-little-things-make-all-the-difference ./lcw/news--events/featured/ill-be-saving-lives ./lcw/news--events/featured/ill-be-saving-lives ./lcw/news--events/featured/stay-passionate ./lcw/news--events/featured/stay-passionate ./www-standin/srv/www/corporate/students/policies/academic-integrity/index ./www-standin/srv/www/corporate/students/policies/academic-integrity/index ./www-standin/srv/www/corporate/news/touro-in-the-news/where-were-you-the-day-jfk-died ./www-standin/srv/www/corporate/news/touro-in-the-news/post-traumatic-stress-disorder ./www-standin/srv/www/corporate/news/touro-in-the-news/post-traumatic-stress-disorder ./www-standin/srv/www/corporate/news/touro-in-the-news/post-traumatic-stress-disorder ./www-standin/srv/www/corporate/news/touro-in-the-news/halperin-uncovers-letter-from-19th-century-doctor-for-slaves ./www-standin/srv/www/corporate/news/touro-in-the-news/feed ./www-standin/srv/www/corporate/news/touro-in-the-news/feed ./www-standin/srv/www/corporate/news/touro-in-the-news/feed ./www-standin/srv/www/corporate/news/touro-in-the-news/feed ./www-standin/srv/www/corporate/news/press-releases/touro-confers-dean-robert-goldschmidt-of-lander-college--of-arts--sciences-in-f ./www-standin/srv/www/corporate/news/featured/faculty-staff-and-rebbeim-at-lander-college-for-men-wish-the-class-of-2013-well ./www-standin/srv/www/corporate/news/featured/i-can-relate-to-when-you-dont-know-who-to-turn-to ./www-standin/srv/www/corporate/news/featured/lander-college-for-women-celebrates-national-poetry-month ./www-standin/srv/www/corporate/news/featured/social-work-is-about-helping-people-get-to-a-better-place-including-yourself-ill-be-a-great-social-worker-i-love-peopleall-shapes-and-sizes ./www-standin/srv/www/corporate/news/featured/lander-college-for-men-parents-faculty-staff-and-rebbeim-celebrate-with-the-2013-graduates-and-honor-their-achievement- ./www-standin/srv/www/corporate/news/featured/its-hard-to-juggle-work-wife-mother-but-at-the-end-of-the-day-its-so-rewarding-i-wouldnt-have-it-any-other-way ./www-standin/srv/www/corporate/news/featured/touro-college-south-students-join-the-great-debate-on-gun-control-officially- ./www-standin/srv/www/corporate/news/featured/im-stronger-than-i-thought-and-i-dont-have-to-do-everythingjust-the-best-that-i-can ./www-standin/srv/www/corporate/news/featured/social-work-is-a-calling-to-help-people ./www-standin/srv/www/corporate/news/featured/for-all-those-just-starting-out-at-lander ./www-standin/srv/www/corporate/news/featured/the-faculty-and-administration-of-touro-law-say-goodbye-to-the-class-of-2013 ./www-standin/srv/www/corporate/news/featured/shelly-and-priscilla-take-on-the-flu-in-this-public-service-announcement-video ./www-standin/srv/www/corporate/news/featured/zahava-farbman-addresses-graduate-school-of-social-work-alumni ./www-standin/srv/www/corporate/news/featured/just-because-im-looking-at-somebody-who-is-one-way-right-now-doesnt-mean-theyre-gonna-be-this-way-forever ./www-standin/srv/www/corporate/news/featured/if-no-one-opens-a-door-for-you-to-get-experience-where-will-you-get-it-from ./www-standin/srv/www/corporate/news/featured/i-was-only-able-to-help-myself-when-i-could-really-understand-and-internalize-that-i-didnt-have-the-answers- ./www-standin/srv/www/corporate/news/featured/rabbi-dr-howard-apfel-gave-a-lecture-on-what-jewish-law-has-to-say-about-becoming-a-doctor ./www-standin/srv/www/corporate/news/featured/a-few-words-of-advice-from-the-class-of-2013 ./www-standin/srv/www/corporate/news/featured/congratulations-to-the-class-of-2013 ./www-standin/srv/www/corporate/news/featured/advice-for-the-touro-college-of-pharmacy-class-of-2017 ./www-standin/srv/www/corporate/news/featured/guy-manuel-adopts-business-tactics-in-classroom-setting ./www-standin/srv/www/corporate/news/featured/guy-manuel-adopts-business-tactics-in-classroom-setting ./gssw/news--events/stories/the-advocate ./gssw/news--events/stories/the-advocate ./gssw/news--events/stories/one-person-can-make-a-difference ./gssw/news--events/stories/one-person-can-make-a-difference ./gssw/news--events/stories/touro-college-graduate-school-of-social-work-hosts-educational-panel-for-asian-american-professionals- ./gssw/news--events/stories/touro-college-graduate-school-of-social-work-hosts-educational-panel-for-asian-american-professionals- ./gssw/news--events/stories/changing-peoples-lives ./gssw/news--events/stories/changing-peoples-lives ./gssw/news--events/stories/acts-of-goodness-and-kindness ./gssw/news--events/stories/acts-of-goodness-and-kindness ./gssw/news--events/stories/inner-strength ./gssw/news--events/stories/inner-strength ./gssw/news--events/stories/making-choices ./gssw/news--events/stories/making-choices ./gssw/news--events/stories/moving-past-tragedy-and-crisis ./gssw/news--events/stories/moving-past-tragedy-and-crisis ./gssw/news--events/stories/role-models ./gssw/news--events/stories/role-models ./gssw/news--events/stories/graduate-school-of-social-work-celebrates-diversity-during-community-day ./gssw/news--events/stories/graduate-school-of-social-work-celebrates-diversity-during-community-day ./gssw/news--events/stories/we-all-had-aspirations ./gssw/news--events/stories/we-all-had-aspirations ./gssw/news--events/press-releases/gssw-community-day ./gssw/news--events/press-releases/gssw-community-day ./gssw/news--events/featured/the-advocate ./gssw/news--events/featured/the-advocate ./gssw/news--events/featured/one-person-can-make-a-difference ./gssw/news--events/featured/one-person-can-make-a-difference ./gssw/news--events/featured/gssw-community-day ./gssw/news--events/featured/gssw-community-day ./gssw/news--events/featured/touro-college-graduate-school-of-social-work-hosts-educational-panel-for-asian-american-professionals- ./gssw/news--events/featured/touro-college-graduate-school-of-social-work-hosts-educational-panel-for-asian-american-professionals- ./gssw/news--events/featured/changing-peoples-lives ./gssw/news--events/featured/changing-peoples-lives ./gssw/news--events/featured/acts-of-goodness-and-kindness ./gssw/news--events/featured/acts-of-goodness-and-kindness ./gssw/news--events/featured/inner-strength ./gssw/news--events/featured/inner-strength ./gssw/news--events/featured/making-choices ./gssw/news--events/featured/making-choices ./gssw/news--events/featured/role-models ./gssw/news--events/featured/role-models ./gssw/news--events/featured/we-all-had-aspirations ./gssw/news--events/featured/we-all-had-aspirations ./lcm/news-and-events/news/obamacare-and-halacha ./lcm/news-and-events/news/obamacare-and-halacha ./lcm/news-and-events/news/take-it-with-you ./lcm/news-and-events/news/take-it-with-you ./lcm/news-and-events/news/a-winning-shabbos ./lcm/news-and-events/news/a-winning-shabbos ./lcm/news-and-events/news/preparing-tomorrows-innovators ./lcm/news-and-events/news/preparing-tomorrows-innovators ./lcm/news-and-events/news/hypnotist-comes-to-lcm-melave-malka ./lcm/news-and-events/news/hypnotist-comes-to-lcm-melave-malka ./lcm/news-and-events/news/welcome-to-the-lander-family ./lcm/news-and-events/news/welcome-to-the-lander-family ./lcm/news-and-events/news/welcome-new-students-1 ./lcm/news-and-events/news/welcome-new-students-1 ./lcm/news-and-events/news/moshe-ornstein-ma-md-a-healing-factor ./lcm/news-and-events/news/moshe-ornstein-ma-md-a-healing-factor ./lcm/news-and-events/news/gabe-hershman-dds-putting-me-on-the-right-path ./lcm/news-and-events/news/gabe-hershman-dds-putting-me-on-the-right-path ./lcm/news-and-events/news/going-all-hanisim-out-to-celebrate-chanukah ./lcm/news-and-events/news/going-all-hanisim-out-to-celebrate-chanukah ./lcm/news-and-events/news/to-the-lander-college-for-men-class-of-2014 ./lcm/news-and-events/news/to-the-lander-college-for-men-class-of-2014 ./lcm/news-and-events/news/lander-colleges-graduate ./lcm/news-and-events/news/lander-colleges-graduate ./lcm/news-and-events/news/md-to-be-or-not-to-be-a-halachic-perspective ./lcm/news-and-events/news/md-to-be-or-not-to-be-a-halachic-perspective ./lcm/news-and-events/featured/obamacare-and-halacha ./lcm/news-and-events/featured/obamacare-and-halacha ./lcm/news-and-events/featured/moshe-ornstein-ma-md-a-healing-factor ./lcm/news-and-events/featured/moshe-ornstein-ma-md-a-healing-factor ./tourocom/about-us/our-facilities/middletown-campus/index ./tourocom/news--events/stories/to-the-tourocom-class-of-2014 ./tourocom/news--events/stories/to-the-tourocom-class-of-2014 ./tourocom/news--events/stories/welcome-tourocom-class-of-2018 ./tourocom/news--events/stories/welcome-tourocom-class-of-2018 ./tourocom/news--events/stories/to-the-tourocom-class-of-2017-breathe ./tourocom/news--events/stories/to-the-tourocom-class-of-2017-breathe ./tourocom/news--events/featured/to-the-tourocom-class-of-2014 ./tourocom/news--events/featured/to-the-tourocom-class-of-2014'; 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