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
Processing...

Test String

Code Generator

Generated Code

$re = '/<div\s[\s\S]*?\"detailBulletsWrapper_feature_div[\s\S]*?<div\s[\s\S]*?detailBullets_feature_div[\s\S]*?<ul[\s\S]*?ASIN:[\s\S]*?<\/span>\s*<span>([\s\S]*?)<\/span>/m'; $str = '<div id="detailBulletsWrapper_feature_div" data-feature-name="detailBullets" data-template-name="detailBullets" class="a-section a-spacing-none feature" data-cel-widget="detailBulletsWrapper_feature_div"> <div id="detailBullets_feature_div"> <ul class="a-unordered-list a-nostyle a-vertical a-spacing-none"> <li><span class="a-list-item"> <span class="a-text-bold">Product Dimensions: </span> <span>5 x 5 x 0.7 inches</span> </span></li> <li><span class="a-list-item"> <span class="a-text-bold">Shipping Weight: </span> <span>12 ounces (<a href="https://www.amazon.com/gp/help/seller/shipping.html/ref=dp_pd_shipping?_encoding=UTF8&amp;seller=&amp;asin=B07F9GS3VY">View shipping rates and policies</a>)</span> </span></li> <li><span class="a-list-item"> <span class="a-text-bold">ASIN: </span> <span>B07F9GS3VY</span> </span></li> <li><span class="a-list-item"> </span></li> <li><span class="a-list-item"> <span class="a-text-bold">Item model number: </span> <span>WXAGLHP2</span> </span></li> <li><span class="a-list-item"> <span class="a-text-bold">Date first listed on Amazon: </span> <span>September 11, 2013</span> </span></li> </ul> </div> <div id="dpx-amazon-sales-rank_feature_div"> <style type="text/css"> .zg_hrsr_item {list-style : none}; </style> <li id="SalesRank" style="list-style : none"> <b>Amazon Best Sellers Rank:</b> #36,542 in Clothing, Shoes &amp; Jewelry (<a href="https://www.amazon.com/gp/bestsellers/fashion/ref=pd_dp_ts_fashion_1">See Top 100 in Clothing, Shoes &amp; Jewelry</a>) <style type="text/css">.zg_hrsr { margin: 0; padding: 0; list-style-type: none; }.zg_hrsr_item { margin: 0 0 0 10px; }.zg_hrsr_rank { display: inline-block; width: 80px; text-align: right; }</style><ul class="zg_hrsr"> <li class="zg_hrsr_item"> <span class="zg_hrsr_rank">#39</span> <span class="zg_hrsr_ladder">in&nbsp;<a href="https://www.amazon.com/gp/bestsellers/fashion/ref=pd_zg_hrsr_fashion_1_1">Clothing, Shoes &amp; Jewelry</a> &gt; <a href="https://www.amazon.com/gp/bestsellers/fashion/7147440011/ref=pd_zg_hrsr_fashion_1_2">Women</a> &gt; <a href="https://www.amazon.com/gp/bestsellers/fashion/679337011/ref=pd_zg_hrsr_fashion_1_3">Shoes</a> &gt; <a href="https://www.amazon.com/gp/bestsellers/fashion/6127771011/ref=pd_zg_hrsr_fashion_1_4">Athletic</a> &gt; <b><a href="https://www.amazon.com/gp/bestsellers/fashion/679351011/ref=pd_zg_hrsr_fashion_1_5_last">Women\'s</a></b></span> </li> <li class="zg_hrsr_item"> <span class="zg_hrsr_rank">#129</span> <span class="zg_hrsr_ladder">in&nbsp;<a href="https://www.amazon.com/gp/bestsellers/fashion/ref=pd_zg_hrsr_fashion_2_1">Clothing, Shoes &amp; Jewelry</a> &gt; <a href="https://www.amazon.com/gp/bestsellers/fashion/7147440011/ref=pd_zg_hrsr_fashion_2_2">Women</a> &gt; <a href="https://www.amazon.com/gp/bestsellers/fashion/679337011/ref=pd_zg_hrsr_fashion_2_3">Shoes</a> &gt; <a href="https://www.amazon.com/gp/bestsellers/fashion/6127771011/ref=pd_zg_hrsr_fashion_2_4">Athletic</a> &gt; <b><a href="https://www.amazon.com/gp/bestsellers/fashion/679377011/ref=pd_zg_hrsr_fashion_2_5_last">Walking</a></b></span> </li> <li class="zg_hrsr_item"> <span class="zg_hrsr_rank">#284</span> <span class="zg_hrsr_ladder">in&nbsp;<a href="https://www.amazon.com/gp/bestsellers/fashion/ref=pd_zg_hrsr_fashion_3_1">Clothing, Shoes &amp; Jewelry</a> &gt; <a href="https://www.amazon.com/gp/bestsellers/fashion/7147440011/ref=pd_zg_hrsr_fashion_3_2">Women</a> &gt; <a href="https://www.amazon.com/gp/bestsellers/fashion/679337011/ref=pd_zg_hrsr_fashion_3_3">Shoes</a> &gt; <a href="https://www.amazon.com/gp/bestsellers/fashion/6127771011/ref=pd_zg_hrsr_fashion_3_4">Athletic</a> &gt; <b><a href="https://www.amazon.com/gp/bestsellers/fashion/679360011/ref=pd_zg_hrsr_fashion_3_5_last">Women\'s</a></b></span> </li></ul> </li> </div> <ul class="a-unordered-list a-nostyle a-vertical a-spacing-none"> <li><span class="a-list-item"> <span class="a-text-bold"> Average Customer Review: </span> <style type="text/css"> /* * Fix for UDP-1061. Average customer reviews has a small extra line on hover * https://omni-grok.amazon.com/xref/src/appgroup/websiteTemplates/retail/SoftlinesDetailPageAssets/udp-intl-lock/src/legacy.css?indexName=WebsiteTemplates#40 */ .noUnderline a:hover { text-decoration: none; } </style> <div id="detailBullets_averageCustomerReviews" class="a-spacing-none" data-asin="B07F9GS3VY" data-ref="dpx_acr_pop_"> <span class="a-declarative" data-action="acrStarsLink-click-metrics" data-acrstarslink-click-metrics="{}"> <span id="acrPopover" class="reviewCountTextLinkedHistogram noUnderline" title="4.1 out of 5 stars"> <span class="a-declarative" data-action="a-popover" data-a-popover="{&quot;max-width&quot;:&quot;700&quot;,&quot;closeButton&quot;:&quot;false&quot;,&quot;position&quot;:&quot;triggerBottom&quot;,&quot;url&quot;:&quot;/gp/customer-reviews/widgets/average-customer-review/popover/ref=dpx_acr_pop_?contextId=dpx&amp;asin=B07F9GS3VY&quot;}"> <a href="javascript:void(0)" class="a-popover-trigger a-declarative"> <i class="a-icon a-icon-star a-star-4"><span class="a-icon-alt">4.1 out of 5 stars</span></i> <i class="a-icon a-icon-popover"></i></a> </span> <span class="a-letter-space"></span> </span> </span> <span class="a-letter-space"></span> <span class="a-declarative" data-action="acrLink-click-metrics" data-acrlink-click-metrics="{}"> <a id="acrCustomerReviewLink" class="a-link-normal" href="#customerReviews"> <span id="acrCustomerReviewText" class="a-size-base">221 customer reviews</span> </a> </span> <script type="text/javascript"> P.when(\'A\', \'ready\').execute(function(A) { A.declarative(\'acrLink-click-metrics\', \'click\', { "allowLinkDefault" : true }, function(event){ if(window.ue) { ue.count("acrLinkClickCount", (ue.count("acrLinkClickCount") || 0) + 1); } }); }); </script> <script type="text/javascript"> P.when(\'A\', \'cf\').execute(function(A) { A.declarative(\'acrStarsLink-click-metrics\', \'click\', { "allowLinkDefault" : true }, function(event){ if(window.ue) { ue.count("acrStarsLinkWithPopoverClickCount", (ue.count("acrStarsLinkWithPopoverClickCount") || 0) + 1); } }); }); </script> </div> </span></li> </ul> <div class="a-row"> </div> <div class="a-row"> If you are a seller for this product, would you like to <b><a href="https://sellercentral.amazon.com/cu/contact-us?categoryId=30002&amp;typeId=30005">suggest updates through seller support</a></b>? </div> </div>'; 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