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

/
/
g

Test String

Code Generator

Generated Code

$re = '/(%([^:]+):([^%]+)%)/'; $str = '<!DOCTYPE html>/ <html> <head> <meta http-equiv=\\"Content-Type\\" content=\\"text/html; charset=utf-8\\" /> <title>Testing the checkAndChangeToUrl-Function (Version 5)</title> <link rel=\\"stylesheet\\" type=\\"text/css\\" href=\\"[__protocol__]://[__server__]:[__port__]/weblis-ext3/ext/resources/css/ext-all.css\\" /> <script type=\\"text/javascript\\" src=\\"[__protocol__]://[__server__]:[__port__]/weblis-ext3/ext/adapter/ext/ext-base-debug.js\\"></script> <script type=\\"text/javascript\\" src=\\"[__protocol__]://[__server__]:[__port__]/weblis-ext3/ext/ext-all-debug.js\\"></script> <script type=\\"text/javascript\\" src=\\"[__protocol__]://[__server__]:[__port__]/weblis-ext3/ext/locale/ext-lang-de.js\\"></script> <script type=\\"text/javascript\\" src=\\"[__protocol__]://[__server__]:[__port__]/weblis-resources/js/jquery/jquery-3.2.1.js\\"></script> <script type=\\"text/javascript\\"> function checkAndChangeToUrl(url, maxRetries, waitTime, waitFunc, startFunc, successFunc, errorFunc) { console.log(\\"ENTER checkAndChangeToUrl(\'\\"+url+\\"\', \\"+maxRetries+\\", \\"+waitTime+\\")\\"); var nRetry = 0; var checkUrl = function () { $.ajax({ url: url, context: document.body, crossDomain: true, error: function(jqXHR, textStatus, errorThrown) { console.error(textStatus + \\"; \\" + errorThrown); nRetry++; if (nRetry <= maxRetries) { waitFunc.call(jqXHR, jqXHR); console.log(\\"Retry #\\" + nRetry); var timeout = (nRetry == 0 ? 0 : waitTime); console.log(\\"timeout = \\" + timeout); setTimeout(checkUrl, timeout); if (nRetry === 1) { console.log(\\"**** Try and open the target application ****\\"); // PROBLEM: parent[.parent].handleExternalEvent() existiert nicht... startFunc.call(jqXHR, jqXHR); } } else { errorFunc.call(jqXHR, jqXHR); } return; }, success : function(data, textStatus, jqXHR) { console.log(\\"Success!\\"); successFunc.call(jqXHR, jqXHR); } }).done(function() { $( this ).addClass( \\"done\\" ); console.log(\\"Done!\\"); }); }; // Wir setzen das Ganze in Gang... checkUrl(); } function test_1(checkUrl, targetUrl, launchUrl) { //var url = \\"%param:checkUrl%\\"; //var url = \\"http://localhost:8080/RechercheServlet/rest/forcont/fxLIS?DOKID=1&VID=1&OP=RECEIVE\\"; //var url = \\"http://localhost:8085/gn\\"; console.log(\\"VOR checkAndChangeToUrl(\'\\"+checkUrl+\\"\', 2, 5000) ...\\"); var ret = checkAndChangeToUrl(checkUrl, 2, 2000, function(jqXHR) { console.log(\\"Waiting...\\"); }, function(jqXHR) { console.log(\\"Start application...\\"); $.ajax({ url: %param:launchUrl%, //\\"/opusp-rest/client-action/execute/local/GIS_Launch\\", context: document.body, crossDomain: false, //true, -- SYNCHRONER AUFRUF - SCHWERE SÜNDE... headers: { \'Accept\' : \'application/x-java-jnlp-file\', /* application/jnlp */ \'Content-Description\' : \'File Transfer\', \'Content-Disposition\' : \'attachment; filename=GIS_Launch.jnlp\' }, error: function(jqXHR, textStatus, errorThrown) { console.error(\\"Fehler bei Aktion GIS_Launch: \\" + textStatus + \\"; \\" + errorThrown); return; }, success : function(data, textStatus, jqXHR) { console.log(\\"GIS_Launch: Success! JNLP = \'\\" + data + \\"\'\\"); } }).done(function() { $( this ).addClass( \\"done\\" ); console.log(\\"GIS_Launch: Done!\\"); }); }, function(jqXHR) { console.log(\\"Success.\\"); window.location.href = targetUrl; }, function(jqXHR) { console.log(\\"Error: \\" + jqXHR.statusText + \\", jqXHR.state() = \\" + jqXHR.state()); }); console.log(\\"LEAVE test_1.\\"); } function performTest_1() { test_1( \\"[__checkUrl__]\\", // Parameter: checkUrl, z.B. \\"http://localhost:8080/RechercheServlet\\" \\"%param:targetUrl%\\", // Parameter: targetUrl, z.B. \\"http://localhost:8080/RechercheServlet/rest/forcont/fxLIS?DOKID=1&VID=1&OP=RECEIVE\\" \\"[__launchUrl__]\\" // Parameter: launchUrl, z.B. \\"/opusp-rest/client-action/execute/local/GIS_Launch\\" ) } $.when($.ready).then(function() { performTest_1(); }); </script> </head> <body> <a id=\\"test_1\\" onclick=\\"performTest_1();\\"><button type=\\"button\\">Perform Test #1</button></a> </body> </html> '; 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