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 = '/<option value="(\d*)">(\w+\s\w+|\w+\-\w+|\w+|\w+\s|\w+\s\(w+\)|\w+\s\(\w+\))<\/option>/m'; $str = '<option value="0">Select Make</option><option value="4146">Abarth</option><option value="1">AC</option><option value="2">Acura</option><option value="3664">Adler</option><option value="3">Alfa Romeo</option><option value="291">Alpina</option><option value="4">Alpine</option><option value="5">AM General</option><option value="3705">AMC</option><option value="4154">Apal</option><option value="6">Ariel</option><option value="7">Aro</option><option value="8">Asia</option><option value="9">Aston Martin</option><option value="4201">Auburn</option><option value="10">Audi</option><option value="4144">Aurus</option><option value="11">Austin</option><option value="3749">Austin Healey</option><option value="12">Autobianchi</option><option value="212">Autocam</option><option value="4147">Baic</option><option value="4155">Bajaj</option><option value="13">Baltijas Dzips</option><option value="4156">Batmobile</option><option value="14">Beijing</option><option value="15">Bentley</option><option value="16">Bertone</option><option value="4157">Bilenkin</option><option value="4189">Bio auto</option><option value="17">Bitter</option><option value="18">BMW</option><option value="3676">Borgward</option><option value="20">Brabus</option><option value="21">Brilliance</option><option value="22">Bristol</option><option value="23">Bufori</option><option value="24">Bugatti</option><option value="25">Buick</option><option value="26">BYD</option><option value="27">Byvin</option><option value="28">Cadillac</option><option value="29">Callaway</option><option value="30">Carbodies</option><option value="31">Caterham</option><option value="3752">Chana</option><option value="32">Changan</option><option value="33">ChangFeng</option><option value="3753">Changhe</option><option value="34">Chery</option><option value="4196">CheryExeed</option><option value="35">Chevrolet</option><option value="36">Chrysler</option><option value="37">Citroen</option><option value="38">Cizeta</option><option value="39">Coggiola</option><option value="3668">Combat</option><option value="4158">Cord</option><option value="4203">Cupra</option><option value="40">Dacia</option><option value="41">Dadi</option><option value="42">Daewoo</option><option value="44">Daihatsu</option><option value="45">Daimler</option><option value="4186">Dallara</option><option value="46">Dallas</option><option value="47">Datsun</option><option value="48">De Tomaso</option><option value="4190">Deco Rides</option><option value="4159">Delage</option><option value="49">DeLorean</option><option value="50">Derways</option><option value="3665">DeSoto</option><option value="4148">DFM</option><option value="3754">DFSK</option><option value="4160">DKW</option><option value="51">Dodge</option><option value="52">DongFeng</option><option value="53">Doninvest</option><option value="54">Donkervoort</option><option value="3589">DS</option><option value="4162">DW Hower</option><option value="55">E-Car</option><option value="56">Eagle</option><option value="57">Eagle Cars</option><option value="3755">Efini</option><option value="3756">Excalibur</option><option value="59">FAW</option><option value="60">Ferrari</option><option value="61">Fiat</option><option value="62">Fisker</option><option value="4163">Flanker</option><option value="63">Ford</option><option value="64">Foton</option><option value="65">FSO</option><option value="66">Fuqi</option><option value="4164">GAC</option><option value="216">GAZ</option><option value="67">Geely</option><option value="3815">Genesis</option><option value="68">Geo</option><option value="69">GMC</option><option value="70">Gonow</option><option value="289">Gordon</option><option value="4165">GP</option><option value="71">Great Wall</option><option value="3757">Groz</option><option value="72">Hafei</option><option value="73">Haima</option><option value="4166">Hanomag</option><option value="290">Haval</option><option value="282">Hawtai</option><option value="4187">Heinkel</option><option value="4199">Hennessey</option><option value="74">Hindustan</option><option value="4167">Hispano-Suiza</option><option value="75">Holden</option><option value="76">Honda</option><option value="4168">Horch</option><option value="77">HuangHai</option><option value="3739">Hudson</option><option value="78">Hummer</option><option value="3760">Hurtan</option><option value="79">Hyundai</option><option value="80">Infiniti</option><option value="81">Innocenti</option><option value="3816">International</option><option value="82">Invicta</option><option value="83">Iran Khodro</option><option value="84">Isdera</option><option value="85">Isuzu</option><option value="86">IVECO</option><option value="219">IZH</option><option value="87">JAC</option><option value="88">Jaguar</option><option value="89">Jeep</option><option value="90">Jensen</option><option value="3761">Jiangnan</option><option value="3762">Jinbei</option><option value="91">JMC</option><option value="221">Kanonir</option><option value="92">Kia</option><option value="93">Koenigsegg</option><option value="4169">KTM AG</option><option value="95">Lamborghini</option><option value="96">Lancia</option><option value="97">Land Rover</option><option value="98">Landwind</option><option value="99">Lexus</option><option value="100">Liebao Motor</option><option value="101">Lifan</option><option value="4170">Ligier</option><option value="102">Lincoln</option><option value="4197">LiXiang</option><option value="4184">Logem</option><option value="103">Lotus</option><option value="104">LTI</option><option value="222">LuAZ</option><option value="4171">Lucid</option><option value="105">Luxgen</option><option value="106">Mahindra</option><option value="107">Marcos</option><option value="108">Marlin</option><option value="109">Marussia</option><option value="110">Maruti</option><option value="111">Maserati</option><option value="112">Maybach</option><option value="113">Mazda</option><option value="114">McLaren</option><option value="115">Mega</option><option value="116">Mercedes-Benz</option><option value="117">Mercury</option><option value="118">Metrocab</option><option value="119">MG</option><option value="120">Microcar</option><option value="121">Minelli</option><option value="122">Mini</option><option value="123">Mitsubishi</option><option value="124">Mitsuoka</option><option value="3765">Monte Carlo</option><option value="125">Morgan</option><option value="126">Morris</option><option value="223">Moskvich</option><option value="4172">Nash</option><option value="4198">Nio</option><option value="127">Nissan</option><option value="128">Noble</option><option value="3767">Nysa</option><option value="129">Oldsmobile</option><option value="130">Opel</option><option value="131">Osca</option><option value="3822">Other car</option><option value="3666">Packard</option><option value="132">Pagani</option><option value="133">Panoz</option><option value="286">Paykan</option><option value="134">Perodua</option><option value="135">Peugeot</option><option value="3590">PGO</option><option value="136">Piaggio</option><option value="137">Plymouth</option><option value="4200">Polestar</option><option value="138">Pontiac</option><option value="139">Porsche</option><option value="140">Premier</option><option value="141">Proton</option><option value="142">PUCH</option><option value="143">Puma</option><option value="144">Qoros</option><option value="145">Qvale</option><option value="4183">Racing car</option><option value="4142">RAM</option><option value="4173">Rambler</option><option value="3689">Ravon</option><option value="146">Reliant</option><option value="4174">Renaissance</option><option value="284">Renaissance Cars</option><option value="147">Renault</option><option value="4175">Renault Samsung</option><option value="3619">Rezvani</option><option value="3620">Rimac</option><option value="4176">Rinspeed</option><option value="4195">Roewe</option><option value="149">Rolls-Royce</option><option value="150">Ronart</option><option value="151">Rover</option><option value="152">Saab</option><option value="4149">Saipa</option><option value="153">Saleen</option><option value="148">Samsung</option><option value="154">Santana</option><option value="155">Saturn</option><option value="156">Scion</option><option value="4191">Sears</option><option value="157">SEAT</option><option value="4177">Shanghai Maple</option><option value="3771">Shifeng</option><option value="158">ShuangHuan</option><option value="4178">Simca</option><option value="159">Skoda</option><option value="3772">SMA</option><option value="160">Smart</option><option value="224">SMZ</option><option value="161">Soueast</option><option value="162">Spectre</option><option value="163">Spyker</option><option value="165">SsangYong</option><option value="4179">Steyr</option><option value="4180">Studebaker</option><option value="166">Subaru</option><option value="167">Suzuki</option><option value="226">TagAZ</option><option value="168">Talbot</option><option value="169">Tata</option><option value="170">Tatra</option><option value="171">Tazzari</option><option value="172">Tesla</option><option value="4181">Think</option><option value="173">Tianma</option><option value="174">Tianye</option><option value="175">Tofas</option><option value="176">Toyota</option><option value="177">Trabant</option><option value="178">Tramontana</option><option value="179">Triumph</option><option value="4145">Trumpchi</option><option value="180">TVR</option><option value="227">UAZ</option><option value="280">Ultima</option><option value="181">Vauxhall</option><option value="215">VAZ (Lada)</option><option value="182">Vector</option><option value="183">Venturi</option><option value="184">Volkswagen</option><option value="185">Volvo</option><option value="186">Vortex</option><option value="3728">W Motors</option><option value="4182">Wanderer</option><option value="187">Wartburg</option><option value="4202">Weltmeister</option><option value="188">Westfield</option><option value="189">Wiesmann</option><option value="3667">Willys</option><option value="3774">Wuling</option><option value="190">Xin Kai</option><option value="4192">Xpeng</option><option value="211">Yo-mobil</option><option value="4188">Yulon</option><option value="191">Zastava</option><option value="217">ZAZ</option><option value="3706">Zenos</option><option value="3591">Zenvo</option><option value="3821">Zibar</option><option value="218">ZIL</option><option value="3690">ZiS</option><option value="192">Zotye</option><option value="193">ZX</option>'; $subst = "id=$1\tname=$2 \n"; $result = preg_replace($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