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

/
/
gism

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

$re = '/(inherited )(MgSpeedButton1)(:[ ]TMgSpeedButton)/ism'; $str = 'inherited FormOrganizacaoUsuario: TFormOrganizacaoUsuario Left = 208 Top = 179 Caption = \'Organiza\'#231#227\'o\' ClientHeight = 435 ClientWidth = 614 ExplicitWidth = 630 ExplicitHeight = 474 PixelsPerInch = 96 TextHeight = 15 inherited Bv_Top: TBevel Width = 614 ExplicitTop = 59 ExplicitWidth = 628 end inherited Sb_FormPadrao: TStatusBar Top = 410 Width = 614 ExplicitTop = 410 ExplicitWidth = 628 end inherited Pn_BaseToolBar: TPanel Width = 614 Caption = \'Pn_BaseToolBar\' TabOrder = 4 ExplicitWidth = 628 inherited Panel1: TPanel Left = 532 ExplicitLeft = 546 inherited Sb_Procurar: TMgBitBtn LookAndFeel.SkinName = \'\' end end inherited Pn_Aux2: TPanel Width = 1 ExplicitWidth = 15 end inherited Pn_Historico: TPanel Left = 502 ExplicitLeft = 516 inherited Bo_Historico: TMgSpeedButton LookAndFeel.SkinName = \'\' end end inherited Pn_AuxR: TmgPanel Left = 499 BevelOuter = bvNone ExplicitLeft = 834 ExplicitTop = -3 end end inherited Pn_BaseGrid: TPanel Width = 614 Height = 351 ExplicitWidth = 628 ExplicitHeight = 351 inherited SplitterZoom: TMgSplitter Top = 323 Width = 608 ExplicitLeft = 3 ExplicitTop = 283 ExplicitWidth = 621 end inherited Pc_Grid: TmgExtPageControl Width = 608 Height = 320 ExplicitWidth = 622 ExplicitHeight = 320 inherited Ts_Grid: TTabSheet Caption = \'Organiza\'#231#227\'o\' ExplicitWidth = 614 ExplicitHeight = 287 object Tv_Organizacao: TmgTvExplorer Left = 0 Top = 0 Width = 600 Height = 287 Images = Il_Small DataSource = DM_Seguranca.Ds_Usuario_Org_ FieldPK = \'ORG_IN_CODIGO\' OnMontaLinha = Tv_OrganizacaoMontaLinha OnDblClick = Bo_SelecionaClick OnmgAddNode = Tv_OrganizacaomgAddNode Align = alClient Alignment = taLeftJustify BevelOuter = bvNone ParentColor = True ParentShowHint = False ShowHint = True TabOrder = 0 ExplicitWidth = 614 end end inherited Ts_Filtro: TTabSheet ExplicitWidth = 931 ExplicitHeight = 287 inherited Gd_Filtro: TMgDBGrid Width = 600 Height = 287 Font.Color = clBlack Font.Height = -13 Font.Name = \'Calibri\' ExplicitWidth = 931 ExplicitHeight = 287 end end end inherited Pn_Zoom: TmgPanel Top = 323 Width = 608 ExplicitTop = 323 ExplicitWidth = 622 end inherited Pn_Protegido: TmgPanel Top = 328 Width = 608 ExplicitTop = 328 ExplicitWidth = 622 inherited Lb_Leganda: TmgLabel Height = 15 ParentFont = True ExplicitHeight = 15 end end end inherited Pn_BaseTreeView: TPanel Height = 351 TabOrder = 0 ExplicitHeight = 351 end inherited Pn_BaseBotoes: Tc_PanelExpert Width = 608 ExplicitWidth = 622 inherited Pn_BaseBotoesAux: TPanel Width = 437 ExplicitWidth = 451 inherited Bo_Refresh: TMgSpeedButton ExplicitLeft = 143 end inherited Bo_Adicionar: TMgSpeedButton ExplicitLeft = 469 end inherited Bo_Remover: TMgSpeedButton ExplicitLeft = 433 end inherited Bo_Propriedades: TMgSpeedButton LookAndFeel.SkinName = \'\' end inherited Bo_Fechar: TMgSpeedButton Left = 760 Width = 59 ParentFont = False ExplicitLeft = 630 ExplicitWidth = 59 end inherited Bo_Prev: TmgDBBtn ExplicitLeft = 131 end inherited Bo_Next: TmgDBBtn ExplicitLeft = 199 end inherited Bo_Last: TmgDBBtn ExplicitLeft = 263 ExplicitTop = 6 end inherited MgSpeedButton1: TMgSpeedButton TabOrder = 11 ExplicitLeft = 617 end object Bo_Seleciona: TMgSpeedButton AlignWithMargins = True Left = 694 Top = 3 Width = 60 Height = 25 Cursor = crHandPoint Align = alLeft Caption = \'&Seleciona\' Font.Charset = DEFAULT_CHARSET Font.Color = clWindowText Font.Height = -12 Font.Name = \'MS Sans Serif\' Font.Style = [] ParentFont = False ParentShowHint = True TabOrder = 10 OnClick = Bo_SelecionaClick Layout = blGlyphTop Spacing = 6 Colors.Default = 13675044 Colors.DefaultText = clWhite Colors.Normal = 13675044 Colors.NormalText = clWhite Colors.Hot = 9724187 Colors.HotText = clWhite Colors.Pressed = 9724187 Colors.PressedText = clWhite Colors.Disabled = clWhite Colors.DisabledText = 10526880 SpeedButtonOptions.CanBeFocused = False SpeedButtonOptions.Flat = True DropdownArrow = False DropdownArrowWidth = 7 Flat = False HighlightWhenDown = False Opaque = False RepeatDelay = 0 RepeatInterval = 0 MgImagem = siOk ExplicitLeft = 630 end end end inherited Pn_BasePesquisa: TmgPanel Left = 91 end inherited Mn_Principal: TMainMenu inherited miTabela: TMenuItem Caption = \'&Organiza\'#231#245\'es\' end inherited miExibir: TMenuItem inherited miAtualizar: TMenuItem OnClick = nil end end end inherited mgPopupImpressao: TmgPopupMenu Left = 110 Top = 132 end inherited MnPop_Principal: TPopupMenu inherited mi_Atualizar: TMenuItem OnClick = nil end end inherited Im_Protegido: TmgImageList Bitmap = {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0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 000042ADBD009CE7FF001094CE0000000000000000000000000042ADBD009CE7 FF001094CE000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 000042ADBD0042CEEF0042CEEF001094CE001094CE001094CE0042CEEF0042CE EF001094CE000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 00000000000042ADBD0042CEEF009CE7FF009CE7FF009CE7FF0042CEEF001094 CE00000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000042ADBD0042ADBD0042ADBD0042ADBD001094CE000000 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 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} end end'; $subst = "\1Bo_Help\3"; $result = preg_replace($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