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

@
@
gmsx

Test String

Code Generator

Language

Generated Code

$re = '@(?=<div[ ]class="aawp">) # El primer div debe ser con clase aawp ( # primer grupo (será la base de la recursividad) #--- Opciones ---# # Cualquier cosa salvo <> una o más veces [^<>]+ # Cualquier etiqueta vacía (void element) | <(?=area|base|br|col|embed|hr |img|input|link|meta|param|source |track|wbr)\w+[^>]*> # Comentarios html | <!-- .*? --> # Cualquier otra etiqueta (puede tener anidación) # Recursividad con grupo 1 (?1). El grupo 2 se usa para # cerrar la misma etiqueta original | <(\w+)[^>]*>(?1)*</\2> ) @msx'; $str = '<div class="aawp"> <br> <div> <div>asd</div> </div> </div> <div class="aawp"> <div id="aawp-tb-445"> <div class="aawp-tb aawp-tb--desktop aawp-tb--cols-5 aawp-tb--hide-labe"> <a>a</a> <br /> <img src="abc"> <hr> </div> <div class="aawp-tb aawp-tb--desktop aawp-tb--cols-5 aawp-tb--hide-labe"> ... </div> <div class="aawp-tb aawp-tb--desktop aawp-tb--cols-5 aawp-tb--hide-labe"> ... </div> </div> </div> <div class="aawp"> ... </div> <div class="aawp"> <div id="aawp-tb-445"> <div class="aawp-tb aawp-tb--desktop aawp-tb--cols-5 aawp-tb--hide-labe"> ... </div> </div> </div> <div class="aawp"> <div> x </div> <div> x </div> </div> '; preg_match_all($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