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 = '/(?:.*\n){1} End Object/m'; $str = 'class a_u000_a extends Emitter; // 이상상태 (독) defaultproperties { Begin Object Class=SpriteEmitter Name=SpriteEmitter1 Acceleration=(Z=-100.000000) UseColorScale=True ColorScale(0)=(Color=(B=140,G=64,R=135,A=255)) ColorScale(1)=(RelativeTime=1.000000,Color=(B=120,G=63,R=106,A=255)) ColorMultiplierRange=(X=(Min=0.800000),Y=(Min=0.800000),Z=(Min=0.800000)) FadeOutStartTime=1.080000 FadeOut=True FadeInEndTime=0.120000 FadeIn=True MaxParticles=20 RespawnDeadParticles=False Name="Poison" StartLocationOffset=(Z=-3.000000) StartLocationRange=(X=(Min=-8.000000,Max=8.000000),Y=(Min=-8.000000,Max=8.000000)) SpinParticles=True SpinsPerSecondRange=(X=(Min=0.050000,Max=0.200000)) StartSpinRange=(X=(Max=1.000000)) UseSizeScale=True UseRegularSizeScale=False UniformSize=True SizeScale(0)=(RelativeTime=0.100000,RelativeSize=3.000000) SizeScale(1)=(RelativeTime=0.360000,RelativeSize=4.600000) SizeScale(2)=(RelativeTime=1.000000,RelativeSize=6.000000) StartSizeRange=(X=(Min=2.000000,Max=4.500000),Y=(Min=2.000000,Max=4.500000),Z=(Min=2.000000,Max=4.500000)) InitialParticlesPerSecond=30.000000 AutomaticInitialSpawning=False DrawStyle=PTDS_AlphaBlend Texture=Texture\'LineageEffectsTextures.Particles.fx_m_t0089\' TextureUSubdivisions=2 TextureVSubdivisions=2 BlendBetweenSubdivisions=True SubdivisionEnd=4 LifetimeRange=(Min=1.000000,Max=2.000000) StartVelocityRange=(X=(Min=-80.000000,Max=80.000000),Y=(Min=-80.000000,Max=80.000000),Z=(Min=30.000000,Max=30.000000)) VelocityLossRange=(X=(Min=4.000000,Max=4.000000),Y=(Min=4.000000,Max=4.000000),Z=(Min=4.000000,Max=4.000000)) Name="SpriteEmitter1" End Object Emitters(0)=SpriteEmitter\'LineageEffect.a_u000_a.SpriteEmitter1\' bNoDelete=False DrawScale=0.200000 }'; $subst = " End Object"; $result = preg_replace($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