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
  • Match everything enclosed
    (?:...)
  • Capture everything enclosed
    (...)
  • 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

/
/
gmi

Test String

Code Generator

Language

Generated Code

$re = '/^(?=Nokia.*|Oppo.*|Huawei.*|Xiaomi.*).*/mi'; $str = 'iPhone 7 Plus iPad Pro 12.9 2015 iOS15.5 beta 4 Xiaomi Pocophone F1 Google Pixel 4 XL Samsung Galaxy S22 Plus 5G Samsung Galaxy Tab A 9.7 iPhone 11 Pro iOS15.5 beta4 iPad Pro 10.5 2017 Samsung Tab E Huawei Y9 2019 iPad 9.7 2018 iOS15.5 beta4 Samsung Galaxy Tab S8 iPhone X iPhone 11 Pro Max Samsung Tab E 9.6 Samsung Galaxy S8 Google Pixel 2 Samsung Galaxy A10 Samsung Galaxy A51 LG Q6 Huawei P9 iPad Pro 10.5 2017 Samsung Galaxy A71 5G ZTE Axon 7 iPad mini 3 iPhone X Samsung Galaxy S20 Ultra 2iPad Pro 12.9 2021 LG Q Stylo 4 Moto Z2 Force Samsung Galaxy S21 5G iPhone 13 ZTE Axon 7 Google Pixel 3a XL Samsung Galaxy S6 Edge iPhone 11 iPhone 12 mini Sony Xperia XZ iPad Pro 12.9 2018 OnePlus 9 Pro Samsung Galaxy S8+ iPad Pro 11 2018 iPhone 12 Samsung Galaxy Note 20 Ultra 5G LG V30 Motorola Moto Z OnePlus 5T Samsung Galaxy S6 Edge Samsung Galaxy M20 OnePlus 9 iPhone X iOS15.5 beta4 Samsung Galaxy A02 iPad Air 2 Samsung Galaxy S7 iPhone 8 Mason D450B iPhone 6 iPhone XS Max iPad mini 4 Samsung Galaxy S22 5G iPad Air 3 (2019) Google Pixel 4a Samsung Galaxy Tab A 10.1 2016 Samsung Galaxy Note 8 iPhone SE 2020 Asus Google Nexus 7 (2013) iPhone 11 Pro Samsung Galaxy A30 Google Pixel 4 XL iPhone 12 Pro iPad Mini 2019 Vivo X21 iPad 9.7 2018 iPad 10.2 2020 Samsung Galaxy S10e iPhone SE iPad Air 2 iPad Air 2022 5th Gen iPad Air 2020 Samsung Galaxy S10 Samsung Galaxy S21 Plus 5G OnePlus Nord N200 5G iPad Air 2 Google Pixel 4 XL Samsung Galaxy A9 2018 Samsung Galaxy A51 Motorola Moto G Stylus 2021 Google Pixel 4 Huawei Honor 9 Samsung Galaxy S6 Edge+ Samsung Galaxy A20e iPad Pro 11 2021 iPhone SE 2020 Mason G450A1 Xiaomi Mi MIX 2 Samsung Galaxy Tab A7 iPhone 6 Plus iPad Pro 11 2020 iPad 10.2 2020 Google Pixel 5a Google Pixel 6 Pro Samsung Galaxy A21 Samsung Galaxy Note 20 5G iPad Pro 10.5 2017 HTC One A9 Huawei Honor 8 Samsung Galaxy S6 Edge+ Google Pixel 2 XL iPad 10.2 iPhone XR Samsung Galaxy S8+ Nokia 7.1 Samsung Galaxy S20 Plus Samsung Galaxy A3 2017 LG K10 HTC Desire 12 iPad Pro 12.9 2015 Samsung Galaxy A5 (2017) Huawei P30 Lite LG V40 OnePlus 6T iPad Pro iPad Air 2 Google Pixel 3 XL iPhone 7 Google Pixel C iPad Mini 2021 6th Gen Motorola Moto G5 Plus iPad Air 2020 Samsung Galaxy S20 iPhone 8 Plus Samsung Galaxy A31 Google Pixel 3 Sony Z5 Premium Sony Xperia Z1 LG Phoenix 2 iPhone 11 iPad 9.7 2017 5th Gen iPhone XS Samsung Galaxy Tab S6 Samsung Galaxy J7 2016 Honeywell CK65 Samsung Galaxy A5 HTC 10 iPad Pro 12.9 2020 Sony Xperia 10 Google Pixel 3a XL iPhone 6S Sony Xperia 5 iPad Air Samsung Galaxy A6 2018 Samsung Galaxy S9 Samsung Galaxy S5 Google Pixel XL LG G7 Thinq Motorola Moto X Play Huawei P30 Lite iPhone XS Max Samsung Galaxy S10+ Samsung Galaxy Tab S2 Samsung Galaxy Tab S8 Plus iPhone SE 2020 LG K30 LG V30+ Thinq iPhone_11_Pro Samsung Galaxy A80 OnePlus 3T iPhone 5S Samsung Galaxy S22 Ultra 5G iPhone 8 iPhone 7 Plus iPod Touch 6 iPad Pro 9.7 Huawei Mate 9 Samsung Galaxy Note 20 Ultra 5G OnePlus 3 iPhone 12 mini iOS15.5 beta4 OnePlus 7 Pro Nokia 8 Samsung Galaxy Z Fold 2 5G OnePlus 6 Samsung Galaxy Tab S5e Samsung Galaxy A50 iPhone X iPhone 8 Samsung Galaxy S21 Ultra 5G LG Stylo 6 Google Pixel 3 iPhone 6 iPhone X iPhone 13 Pro Max iPhone 12 Pro Max Sony Xperia Z3 Compact Xiaomi MI 6 LG V20 iPad Air 2 iOS15.5 beta4 Google Pixel 5 Motorola Moto G Power (2021) Lenovo Tab 3 Pro Motorola Moto G6 Essential PH-1 Samsung Galaxy Note 9 iPhone 6 iPad mini 4 Samsung Galaxy S10e Samsung Galaxy A8 2018 Samsung Galaxy A10e iPad Pro 11 2018 iPad Pro 12.9 2015 Samsung Galaxy Note 5 Samsung Galaxy Fold 5G iPhone XR iPhone XS Samsung Galaxy Note 4 Samsung Galaxy S21 5G Samsung Galaxy Tab S7 Motorola One Vision Samsung Galaxy Note 10+ iPhone XR LG G8 ThinQ Amazon Kindle Fire HD 8 iPhone 7 iPad Pro 12.9 2017 Motorola Moto G7 Samsung Galaxy Tab S7 Plus iPhone 8 Samsung Galaxy Z Flip iPhone 6S LG G6 Samsung Galaxy S7 Edge Samsung Galaxy Tab S8 Ultra Google Pixel 6 Pro Huawei P10 Huawei P20 Samsung Galaxy Note 5 OnePlus 8 Pro Amazon Kindle Fire HD 8 (2020) Samsung Galaxy S6 iPad Pro 12.9 2017 Xiaomi Redmi Note 9 Motorola Nexus 6 Motorola Moto G6 Plus Vivo V9 iPad Pro 12.9 iPhone X iPhone 8 Plus iPad Air 3 (2019) Samsung Galaxy Tab S4 iPhone 8 Samsung Galaxy S10 Motorola Moto X (2nd gen) iPhone 12 Pro Max Amazon Kindle Fire HD 10 (2019) OnePlus 7T iPad Pro 12.9 2015 OnePlus 8 iPad mini 4 iPhone 13 mini iPad Air 2 iPhone 13 Pro Samsung Galaxy Xcover 3 Xiaomi Redmi 9 iPhone 7 Sony Xperia XZ1 iPhone XS ZTE Blade V7 lite Huawei P30 Pro iPad 10.2 2021 9th Gen Samsung Galaxy Tab S4 10.5 iPhone SE 2020 iPod Touch 7 iPad Air 2 Google Pixel 6 Amazon Kindle Fire HD 7 iPhone 7 Plus iPhone SE 2022 Huawei P20 Pro Motorola Moto Z Play Huawei Mate 10 Pro iPhone 6S Plus OnePlus 5 Google Pixel 3 XL Google Pixel 3a iPhone 12 Samsung Galaxy Note 10 Samsung Galaxy Tab S3'; 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