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

/
/
g

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

$re = '/[^a-z0-9]+\D\S\b (?>(?:[A-Za-z]\d ?\d[A-Za-z]{2})|(?:[A-Za-z][A-Za-z\d]\d ?\d[A-Za-z]{2})|(?:[A-Za-z]{2}\d{2} ?\d[A-Za-z]{2})|(?:[A-Za-z]\d[A-Za-z] ?\d[A-Za-z]{2})|(?:[A-Za-z]{2}\d[A-Za-z] ?\d[A-Za-z]{2}))/'; $str = '2 A851 ISLE OF SKYE IV44 8RP 2 St James Cl Glossop DERBYSHIRE SK13 8JX 27 The Shires Marshfield Cardiff NEWPORT CF3 2AX Unnamed Road Isle of Benbecula NA H-EILEANAN AN IAR HS7 5LY Muscovy St LONDON EC3R 5BA 27 Louise St Chester CHESHIRE WEST AND CHESTER CH1 4HP UK 15 Whiteladies Rd Bristol CITY OF BRISTOL BS8 2NN UK Flat 3 2A Klea Avenue LONDON SW4 9JA London 41 Longthornton Road LONDON SW16 5QE GREATER LONDON 127 Cedars Road LONDON SW4 0PS London 108 Culvert Road LONDON SW11 5AX London 308 Wellington Road South HOUNSLOW TW4 5JT Hounslow 15 Arnott Quadrant MOTHERWELL ML1 3TQ North Lanarkshire 12 Parish Close Dawley TELFORD TF4 3ER Shropshire 76 Admiralty Close WEST DRAYTON UB7 9NJ West Drayton 56 Glenburn Avenue MOTHERWELL ML1 5EF North Lanarkshire 25 Thirleby Road EDGWARE HA8 0HF Edgware 21 Prideaux Place Friars Place Lane LONDON W3 7AS London 1 Arnold Road STAINES-UPON-THAMES TW18 1LY Surrey 6 Queen Street BRIDGWATER TA6 3DA Somerset Flat 8 Lynn Court Mitcham Lane LONDON SW16 6LL London 35 Weirside Gardens WEST DRAYTON UB7 7TL 473 Rochfords Gardens SLOUGH SL2 5XF Berkshire 155 Strawberry Fields ADDLESTONE KT15 1FJ Surrey 6 Lundy Drive HAYES UB3 4ES Hayes 67 Daubney Street CLEETHORPES DN35 7BB Lincolnshire 38 Hurleybrook Way Leegomery TELFORD TF1 6TX Shropshire 7 Sanderson Avenue Uddingston GLASGOW G71 6JR North Lanarkshire 18 Swaythling Close LONDON N18 2QG London 10A Castle Court WHITCHURCH SY13 1DE Shropshire Flat 41 Burnside Tower MOTHERWELL ML1 2BA North Lanarkshire 42 Melrose Avenue Chapelhall AIRDRIE ML6 8TE North Lanarkshire 18 Alfred Road LONDON SE25 5LE London 72 St. James Road WATFORD WD18 0DX Hertfordshire 49 Graham Road MITCHAM CR4 2HB Mitcham 14 Woodside Crescent Newmains WISHAW ML2 9LX North Lanarkshire 182 Dalriada Crescent MOTHERWELL ML1 3XS North Lanarkshire 2 High Lift Villas Skye Hall Hill Boxted Colchester ESSEX CO4 5TD UK 1 Casterbridge Hill Street Calmore Southampton HAMPSHIRE SO40 2RX UK 3 Earl\'s Ct Fifth Ave Team Valley Trading Estate Gateshead TYNE AND WEAR NE11 0HF UK 1 Meadow Dr Hampton in Arden Solihull WEST MIDLANDS B92 0BD UK 1 Amotherby Ln Amotherby Malton NORTH YORKSHIRE YO17 6TG UK 39 Nightingale Way Midsomer Norton Radstock BATH AND NORTH EAST SOMERSET BA3 4NL UK 7 Macredie Pl Perceton Irvine NORTH AYRSHIRE KA11 2BF UK 13 Montague Ave Conisbrough Doncaster SOUTH YORKSHIRE DN12 3PS UK 389 Innsworth Ln Churchdown Gloucester GLOUCESTERSHIRE GL3 1HA UK 5 Harris Cl Newborough Peterborough PETERBOROUGH PE6 7AJ UK 16 Drury Ln Altofts Normanton WEST YORKSHIRE WF6 2JN UK 5 Ael-Y-Bryn Trelewis Treharris MERTHYR TYDFIL CF46 6BA UK 44 West Cres Chopwell Newcastle upon Tyne TYNE AND WEAR NE17 7HD UK 3 Buckingham Square Helmsley York NORTH YORKSHIRE YO62 5DZ UK 3 Monument Cl Tittensor Stoke-on-Trent STAFFORDSHIRE ST12 9JL UK 27 Halbullock View Gloweth Truro CORNWALL TR1 3WW UK 3 Gwyddon Rd Abercarn Newport CAERPHILLY NP11 5GX UK 2B Ballyoran Ln Dundonald Belfast CASTLEREAGH BT16 1XJ UK 63 Kensington Dr Great Holm Milton Keynes MILTON KEYNES MK8 9AW UK 3 Donich View Lochgoilhead Cairndow ARGYLL AND BUTE PA24 8AP UK 33 Knowehead Rd Hurlford Kilmarnock EAST AYRSHIRE KA1 5EQ UK 9 Bishopdale Rise Mosborough Sheffield SOUTH YORKSHIRE S20 5PE UK 8 Byland Cl Boston Spa Wetherby WEST YORKSHIRE LS23 6PU UK 10 Park Way Rednal Birmingham WEST MIDLANDS B45 9PL UK 68A Earlswood Rd Dorridge Solihull WEST MIDLANDS B93 8RH UK 18 Angus Cl Shaw Swindon SWINDON SN5 5PS UK 4 Garbo Cl Crownhill Milton Keynes MILTON KEYNES MK8 0EA UK 2124 Market Way Team Valley Trading Estate Gateshead TYNE AND WEAR NE11 0RE UK 7 Blenkinsopp Castle Inn Greenhead Brampton NORTHUMBERLAND CA8 7JN UK 23 Sherry Heights Cambuslang Glasgow SOUTH LANARKSHIRE G72 7HH UK 1 Inchmore Struy Kiltarlity Beauly HIGHLAND IV4 7JX UK 155A Bedford Rd Wilstead Bedford BEDFORD MK45 3HU UK 11 Almond Cl Llantwit Fardre Pontypridd RHONDDA CYNON TAFF CF38 2PX UK 2 Pettits Cl Fulbourn Cambridge CAMBRIDGESHIRE CB21 5BJ UK 1 Rothbury Cl Trimdon Grange Trimdon Station COUNTY DURHAM TS29 6PD UK 1 Mill of Brotherfield Skene Westhill ABERDEENSHIRE AB32 6SQ UK 1 Broadmeadow Cl Totton Southampton HAMPSHIRE SO40 8WB UK 72 Parish Rd Beddau Pontypridd RHONDDA CYNON TAFF CF38 2BU UK Kiln Ln Leece Ulverston CUMBRIA LA12 0QZ UK 5 Builth Cl Duffryn Newport NEWPORT NP10 8HU UK 3 Caladh-na-Sith Bruichladdich Isle of Islay ARGYLL AND BUTE PA49 7UN UK 336 Almondvale S Livingston WEST LOTHIAN EH54 6HR UK 162 Drum Rd Cookstown COOKSTOWN BT80 9DW UK 119-129 Bath St Glasgow GLASGOW CITY G2 2DR UK 3 Cherry Tree Cl Saint Leonards-on-sea EAST SUSSEX TN37 6EX UK 3 Carregoffa Cottages Llanymynech POWYS SY22 6LA UK 5 Castle Goring Mews Worthing WEST SUSSEX BN13 3UD UK 2A Newlands Dr Halesowen WEST MIDLANDS B62 9DU UK 223 Chatsworth Ave Portsmouth PORTSMOUTH PO6 2UL UK 41 Castle Terrace Aberdeen ABERDEEN CITY AB11 5EA UK 244 St Margaret\'s Rd Bradford WEST YORKSHIRE BD7 2BU UK 16 Woodbine Rd Sidcup GREATER LONDON DA15 8JJ UK 4 New Houses Isle of Eigg HIGHLAND PH42 4RL UK 2 Tripps Hill Cl Chalfont Saint Giles BUCKINGHAMSHIRE HP8 4JZ UK 112 Ardingly Dr Worthing WEST SUSSEX BN12 4TP UK 6A Ellenslea Rd Saint Leonards-on-sea EAST SUSSEX TN37 6HY UK 20 Surrey Dr Congleton CHESHIRE EAST CW12 1NU UK Unnamed Road Hull EAST RIDING OF YORKSHIRE HU11 4NZ UK 1 Hay Park Loan Galashiels SCOTTISH BORDERS TD1 2SF UK Chestnut Ave Penmaenmawr CONWY LL34 6TH UK 11 Smithills Cl Chorley LANCASHIRE PR6 0EG UK Silverdale Rd Settle NORTH YORKSHIRE BD24 9PN UK 1 and 2 Westmill Cottages Auchterarder PERTH AND KINROSS PH3 1DP UK 1 Booth\'s Hill Rd Lymm WARRINGTON WA13 0DJ UK Coed-Yr-Ynys Rd Crickhowell POWYS NP8 1NA UK 38 Main St Nottingham NOTTINGHAMSHIRE NG1 1AB UK 9 Meerbrook Cl Stoke-on-Trent STOKE-ON-TRENT ST4 8TR UK 167 Crocketts Rd Birmingham WEST MIDLANDS B21 0HS UK 3 St Johns Ave Epsom SURREY KT17 3BE UK 71 Lisanally Ln Armagh ARMAGH BT61 7HF UK Little London St Norwich NORFOLK NR2 1AN UK 21 Westgarth Rd Kirkby Stephen CUMBRIA CA17 4TF UK 6 St Peters Rd Rugby WARWICKSHIRE CV21 3QR UK 56 Ingestre Rd Birmingham WEST MIDLANDS B28 9EG UK 56 Hawthorn Cres Beith NORTH AYRSHIRE KA15 1BZ UK Highlander Rd Chester CHESHIRE WEST AND CHESTER CH3 6BB UK 2 Blegbie Cottages Humbie EAST LOTHIAN EH36 5PN UK Sake Ride Ln Henfield WEST SUSSEX BN5 9AS UK 47 Grammerscroft Millom CUMBRIA LA18 5EL UK Best St Chatham MEDWAY ME4 4AB UK 15 Gordon Pl Tain HIGHLAND IV20 1TD UK Skittle Green Princes Risborough BUCKINGHAMSHIRE HP27 9PJ UK 4 Market Pl Nottingham NOTTINGHAMSHIRE NG6 8QA UK 49A William St Helensburgh ARGYLL AND BUTE G84 8XY UK 11 Cumberland Walk Newcastle upon Tyne TYNE AND WEAR NE7 7SX UK 99 Pinewood Green Iver BUCKINGHAMSHIRE SL0 0QN UK 19 Darnley Rd Gravesend KENT DA11 0RZ UK 504 Upper Thames St LONDON EC4V 3EH UK 1 Bourne Valley Rd Poole POOLE BH12 1DS UK 12/3 Rankin Dr Edinburgh EDINBURGH EH9 3DE UK 31 Leadhall Ln Harrogate NORTH YORKSHIRE HG2 9NJ UK Flower Ln Godstone SURREY RH9 8BG UK 120 High St Hungerford WEST BERKSHIRE RG17 0LU UK 6 Whitworth Cl Gateshead TYNE AND WEAR NE8 4UW UK 5 Dromara Rd Hillsborough LISBURN BT26 6HY UK 22 Maitland Terrace Newbiggin-by-the-Sea NORTHUMBERLAND NE64 6UR UK 50 W Shore Rd Edinburgh EDINBURGH EH5 1QH UK B846 Pitlochry PERTH AND KINROSS PH17 2QA UK Unnamed Road Cullompton DEVON EX15 2AH UK 15 Mayor\'s Walk Peterborough PETERBOROUGH PE3 6EU UK 15 Glenmount Rd NEWTOWNABBEY BT37 9BW UK 63 Cefn-Y-Bryn Llandudno CONWY LL30 1NL UK 27 Louise St Chester CHESHIRE WEST AND CHESTER CH1 4HP UK 76 Stoneyhurst Ave Burnley LANCASHIRE BB10 4NL UK 4 Oakcroft Villas Chessington GREATER LONDON KT9 1RJ UK 27 Catherine St Bristol CITY OF BRISTOL BS11 9LG UK Kings Ct Falkirk FALKIRK FK1 1PQ UK 27 Randolph Rd Glasgow GLASGOW CITY G11 7LF UK London Rd Nantwich CHESHIRE EAST CW5 7QB UK 3 Athol Square Poplar LONDON E14 0NP UK 4 Moor Ln Skipton NORTH YORKSHIRE BD23 6EJ UK 6 Wasdale Cl Cramlington NORTHUMBERLAND NE23 6LN UK 103-105 Lower Luton Rd Harpenden HERTFORDSHIRE AL5 5AL UK Doddington Rd Chatteris CAMBRIDGESHIRE PE16 6UJ UK 13 Manor Farm Rd Enfield GREATER LONDON EN1 4SH UK 3 The Meadows Watlington OXFORDSHIRE OX49 5JN UK 1 Campbelltown Cottages Leckmelm Lochbroom Garve HIGHLAND IV23 2RH 188 Thames Rd Stockton-on-Tees Billingham STOCKTON-ON-TEES TS22 5EF 11 Old Station Ct Strathyre Callander STIRLING FK18 8NL 2 Westcotts Hollocombe Chulmleigh DEVON EX18 7QE 11 Swan Bank Ct Swan Bank Ln Holmfirth WEST YORKSHIRE HD9 2DS 10 St Mary\'s Cl Roughton Norwich NORFOLK NR11 8QF 2 Well Cottages Tutwell Callington CORNWALL PL17 8LU 28 Llwyni Drive Connah\'s Quay Deeside FLINTSHIRE CH5 4NE 5 Elliot Cl South Woodham Ferrers Chelmsford ESSEX CM3 5YN 4 Buckingham Cl Georgenympton Rd South Molton DEVON EX36 4ER 117 Hannahston Ave Drongan Ayr EAST AYRSHIRE KA6 7AX 1 Maes Merddyn Bungalows Carreglefn Amlwch ISLE OF ANGLESEY LL68 0PD 3 West View Hawthorn Seaham COUNTY DURHAM SR7 8SQ 41 Killough Rd Ardglass Downpatrick COUNTY DOWN BT30 7UG 2 Inchloan Steadings Durris Banchory ABERDEENSHIRE AB31 6DL 20 Main Rd Knockholt Sevenoaks KENT TN14 7LD 49 Daniell Rd Wellesbourne Warwick WARWICKSHIRE CV35 9UD 45 Ellesmere Orchard Westbourne Emsworth WEST SUSSEX PO10 8TP 2124 Market Way Team Valley Trading Estate Gateshead TYNE AND WEAR NE11 0RE 1 Thrush Hill Rd Mytholmroyd Hebden Bridge WEST YORKSHIRE HX7 5AQ 2 Church View Broughton Kettering NORTHAMPTONSHIRE NN14 1LX 4 Anderson Dr Killen Avoch HIGHLAND IV9 8RH 2 Gipsy Ln Woodlesford Leeds WEST YORKSHIRE LS26 8SA B1064 Long Melford Sudbury SUFFOLK CO10 9HY 2 Frood Cl Chapel-en-le-Frith High Peak DERBYSHIRE SK23 0JS 46 Fordham Rd London Barnet GREATER LONDON EN4 9AQ 49 Marine Parade Millport Isle of Cumbrae NORTH AYRSHIRE KA28 0EF 1 Glanton Ct Faverdale Darlington DARLINGTON DL3 0NY 97 Occupation Rd Harley Rotherham SOUTH YORKSHIRE S62 7UQ 2 The Row Wretham Thetford NORFOLK IP24 1RH 26 Pepys Terrace Impington Cambridge CAMBRIDGESHIRE CB24 9NT 38 Orrell Ln Burscough Ormskirk LANCASHIRE L40 0SQ 10 Elderberry Cl Langdon Hills Basildon ESSEX SS16 6RL 39 Rothbury Cl Trimdon Grange Trimdon Station COUNTY DURHAM TS29 6PD 4 Avards Cl Hawkhurst Cranbrook KENT TN18 4EJ 1 Burnside Cl Boldon Colliery TYNE AND WEAR NE35 9BU 1 Ivy Cottages Gunnislake CORNWALL PL18 9NP 1 Lyngford Square Taunton SOMERSET TA2 7ES 1 Portfield Haverfordwest PEMBROKESHIRE SA61 1BW 1 Slate Cl Delabole CORNWALL PL33 9EN 1 Thornden Ln Glasgow GLASGOW CITY G14 0XQ 10 Nora St Warrington WARRINGTON WA1 2JG 104 Alston Rd Solihull WEST MIDLANDS B91 2RG 11 Cumberland Walk Newcastle upon Tyne TYNE AND WEAR NE7 7SX 11 Livingstone Rd Broadstairs KENT CT10 2UD 115-119 Murray St Montrose ANGUS DD10 8JQ 117 Heathcote Dr East Grinstead WEST SUSSEX RH19 1NG 12 Lord St Barnsley SOUTH YORKSHIRE S71 1HZ 125 Brown Lees Rd Stoke-on-Trent STAFFORDSHIRE ST8 6PN 14 Raise St Saltcoats NORTH AYRSHIRE KA21 5JU 15 Sidmouth Rd Lytham Saint Annes LANCASHIRE FY8 2QZ 1-7 Westbourne Rd Bedford BEDFORD MK40 4LB 18 Granville St Rossendale LANCASHIRE BB4 4LD 18 Mullard Dr Leamington Spa WARWICKSHIRE CV31 2QE 18 Queen\'s Ave Sunderland TYNE AND WEAR SR6 8DL 19 Berrycoombe Vale Bodmin CORNWALL PL31 2PH 190 Elgar Ave Malvern WORCESTERSHIRE WR14 2HA 190 Partington Ln Swinton MANCHESTER M27 0WN 1B Prestongrange Rd Prestonpans EAST LOTHIAN EH32 9SL 2 Braekirk Ave Kirknewton WEST LOTHIAN EH27 8BL 2 Crowhurst Mead Godstone SURREY RH9 8BF 2 Hillcrest Ct Brackley NORTHAMPTONSHIRE NN13 6QA 2 Lowick Gardens Peterborough PETERBOROUGH PE3 7HQ 2 Roundhaye Gardens Bournemouth BOURNEMOUTH BH11 9JU 2 Upper Church St Ashby-de-la-Zouch LEICESTERSHIRE LE65 1BX 21 Lammas Rd Godalming SURREY GU7 1YL 21 Luss Ave Greenock INVERCLYDE PA15 3EQ 22 Russell Rd Gravesend KENT DA12 2RT 22-24 Collingham Pl Kensington LONDON SW5 0PZ 26 William Morris Ave Rowlands Gill TYNE AND WEAR NE39 2DD 267 Vardon Rd Stevenage HERTFORDSHIRE SG1 5PZ 26A The Cir Birmingham WEST MIDLANDS B17 9DY 276 Charles St Leigh LEIGH WN7 1PP 2A Park Terrace Greenhithe KENT DA9 9EL 3 Agate St Bristol CITY OF BRISTOL BS3 3AQ 3 E Croft Beckermet CUMBRIA CA21 2XF 3 Frankwell Llanidloes POWYS SY18 6HG 30 Coalway Rd Wolverhampton WEST MIDLANDS WV3 7LX 31 Churchill Ave Bourne LINCOLNSHIRE PE10 9QA 31 Coronation Ave Blackburn BLACKBURN WITH DARWEN BB2 5EL 31 Filder Cl Eastbourne EAST SUSSEX BN22 8SY 31C Shore St Macduff ABERDEENSHIRE AB44 1TS 338 Bradford Rd Otley WEST YORKSHIRE LS21 3LT 34 Ettiley Ave Sandbach CHESHIRE EAST CW11 3ND 34 Union Rd Grangemouth FALKIRK FK3 8AB 36 Baird St Glasgow GLASGOW CITY G4 0PT 376 Higginshaw Ln Royton OLDHAM OL2 6HQ 376 Higginshaw Ln Royton OLDHAM OL2 6HQ 39 Parish Gardens Leyland LANCASHIRE PR25 3UF 4 Greenscoe Askam-in-Furness CUMBRIA LA16 7HE 4 Lady Hill View Avoch HIGHLAND IV9 8RU 4 Lorraine Cl Port Talbot NEATH PORT TALBOT SA12 6PJ 4 Mulberry Mews Lewisham Way LONDON SE14 6QF 41 Macer\'s Ln Broxbourne HERTFORDSHIRE EN10 6EA 45-51 Park St Camberley SURREY GU15 3PG 5 Baden Powell Rd Turriff ABERDEENSHIRE AB53 4FA 5 Great Conduit Welwyn Garden City HERTFORDSHIRE AL7 2DH 5 Mulgrove Walk Manchester MANCHESTER M9 6SN 5 Prescott St Hindley WIGAN WN2 3ET 50 Dane Rd Southall GREATER LONDON UB1 2EB 50 Nettleton St Ossett WEST YORKSHIRE WF5 8HG 52 Rosemount Park Newtownabbey NEWTOWNABBEY BT37 0NL 53 Heath Park Rd Romford GREATER LONDON RM2 5UL 57 Booth St Birmingham WEST MIDLANDS B21 0NH 57 Prospect Ave Halifax WEST YORKSHIRE HX2 7HP 6 George St Hertford HERTFORDSHIRE SG14 3AD 6 Kings Dr Egremont CUMBRIA CA22 2LE 6 Lord Sheldon Way Ashton-under-Lyne ASHTON-UNDER-LYNE OL6 7UB 6 St Clement Ave Dunblane STIRLING FK15 9DG 6 St James\' Rd Birmingham WEST MIDLANDS B21 0HL 63 Meadowbrook Rd Halesowen WEST MIDLANDS B63 1AL 6A Boxfield Rd Axminster DEVON EX13 5LB 73 S Parade Elland WEST YORKSHIRE HX5 0NR 76 Norman Rd Walsall WEST MIDLANDS WS5 3QN 79 Stanton St Manchester MANCHESTER M11 4NZ 8 Hilliers Ln Croydon GREATER LONDON CR0 4SU 8 Penleigh Cl Lancing WEST SUSSEX BN15 8EP 85 Broadway Gateshead TYNE AND WEAR NE9 5QB 88 Wildwood Ln Stevenage HERTFORDSHIRE SG1 1TD 886 Bradford Rd Batley WEST YORKSHIRE WF17 8NN 89 Premier Rd Middlesbrough MIDDLESBROUGH TS3 8QW 95 Sunrising Estate Looe CORNWALL PL13 1NG A188 Newcastle upon Tyne TYNE AND WEAR NE7 7EG A39 Truro CORNWALL TR3 6JX A595 Millom CUMBRIA LA19 5UG A827 Killin STIRLING FK21 8TS A97 Huntly ABERDEENSHIRE AB54 4PY A99 Lybster HIGHLAND KW2 6AA B5256 Leyland LANCASHIRE PR26 7PA B8035 Isle of Mull ARGYLL AND BUTE PA68 6EJ B953 Perth PERTH AND KINROSS PH14 9RE Back Row Leeds WEST YORKSHIRE LS11 5AN Century Dr Braintree ESSEX CM77 8YG Ffordd Tyddyn-Y-Felin Talybont GWYNEDD LL43 2AY Harap Rd Trimdon Station COUNTY DURHAM TS29 6NB Maldon Rd Witham ESSEX CM8 3HY Rhiw Felen Crymych PEMBROKESHIRE SA41 3UE Townsend Shepton Mallet SOMERSET BA4 5AX Unnamed Road Crickhowell POWYS NP8 1TA Unnamed Road Keith MORAY AB55 6XU Unnamed Road Penrith CUMBRIA CA10 2PT Unnamed Road Chepstow MONMOUTHSHIRE NP16 6HQ 10 Morecambe Cl LONDON E1 4NH 10 Stafford Park 12 TELFORD TF3 3BJ 18 Henning St LONDON SW11 3DR 19 Kirkgate Ln MILNTHORPE LA7 7FL 25 Derwent Rise LONDON NW9 7HX 3 Vesty Rd BOOTLE L30 1NY 43 Great Russell St LONDON WC1B 3PD 5 Taylor St LEIGH WN7 5NQ 55 Corker Walk LONDON N7 7RU Austin Friars Passage LONDON EC2N 2HG Brockley A Mews LONDON SE4 2DJ Brockley AB1 Mews USK SE4 2DJ GREATER LONDON 35 Weirside Gardens WEST DRAYTON UB7 7TL 63 Mildmay Blk 5 Road Phase B Block C STEVENAGE SG1 5RR Hertfordshire 14 Woodside 4 Crescent BB Newmains NEW WISHAW ML2 9LX North Lanarkshire 74 Cranborne Crescent POTTERS BAR EN6 3AG Hertfordshire Flat 3 2A Klea Avenue LONDON SW4 9JA London Brockley AB1 Mews LONDON SE4 2DJ GREATER LONDON Flat Aylesbury House Friary Estate LONDON SE15 1RW London 28 Leopold Road LONDON NW10 9LH London Flat C 124 Horn Lane LONDON W3 6PA London 13 Seaton Road HAYES UB3 1NS Hayes 13 Seaton Road HAYES UB3 1NS Hayes Flat 203 Boulton House 72-78 Conington Road LONDON SE13 7LH London 33 Cobham Close EDGWARE HA8 5QG Edgware 70 Rolt Street LONDON SE8 5NN GREATER LONDON 178 Hillcrest Road YEOVIL BA21 4RF Somerset Flat 11 Despard House 43 Palace Road LONDON SW2 3EW London Flat 4 Normanton House Oaklands Estate LONDON SW4 8NE London Gibraltar House 4 Connaught Road LONDON NW10 9AH London 24 Grantham House Taywood Road NORTHOLT UB5 6WS Northolt Flat 34 Clare Point Claremont Road LONDON NW2 1TT London Flat 204 11 Steedman Street LONDON SE17 3AF GREATER LONDON Flat 80 Bredinghurst Overhill Road LONDON SE22 0PL London Flat 3 Gunnell Court 16 Appleton Square MITCHAM CR4 3SF Mitcham Flat 110 Ewell Road SURBITON KT6 6HA Surbiton 61 Addison Way NORTHWOOD HA6 1SS Northwood 47 Clivesdale Drive HAYES UB3 3PX Hayes 378B Upper Richmond Road West LONDON SW14 7JU London 103 Long Drive GREENFORD UB6 8NB Greenford 24 Acacia Avenue RUISLIP HA4 8RG Ruislip 41 Longthornton Road LONDON SW16 5QE GREATER LONDON 127 Cedars Road LONDON SW4 0PS London 108 Culvert Road LONDON SW11 5AX London 308 Wellington Road South HOUNSLOW TW4 5JT Hounslow 15 Arnott Quadrant MOTHERWELL ML1 3TQ North Lanarkshire 12 Parish Close Dawley TELFORD TF4 3ER Shropshire 76 Admiralty Close WEST DRAYTON UB7 9NJ West Drayton 56 Glenburn Avenue MOTHERWELL ML1 5EF North Lanarkshire 25 Thirleby Road EDGWARE HA8 0HF Edgware 21 Prideaux Place Friars Place Lane LONDON W3 7AS London 1 Arnold Road STAINES-UPON-THAMES TW18 1LY Surrey 6 Queen Street BRIDGWATER TA6 3DA Somerset Flat 8 Lynn Court Mitcham Lane LONDON SW16 6LL London 473 Rochfords Gardens SLOUGH SL2 5XF Berkshire 155 Strawberry Fields ADDLESTONE KT15 1FJ Surrey 6 Lundy Drive HAYES UB3 4ES Hayes 67 Daubney Street CLEETHORPES DN35 7BB Lincolnshire 38 Hurleybrook Way Leegomery TELFORD TF1 6TX Shropshire 7 Sanderson Avenue Uddingston GLASGOW G71 6JR North Lanarkshire 18 Swaythling Close LONDON N18 2QG London 10A Castle Court WHITCHURCH SY13 1DE Shropshire Flat 41 Burnside Tower MOTHERWELL ML1 2BA North Lanarkshire 42 Melrose Avenue Chapelhall AIRDRIE ML6 8TE North Lanarkshire 18 Alfred Road LONDON SE25 5LE London 72 St. James Road WATFORD WD18 0DX Hertfordshire 49 Graham Road MITCHAM CR4 2HB Mitcham 14 Woodside Crescent Newmains WISHAW ML2 9LX North Lanarkshire 182 Dalriada Crescent MOTHERWELL ML1 3XS North Lanarkshire 129 Meadow Street SHEFFIELD S3 7BN South Yorkshire Flat 4 Bedser Court Clarence Walk LONDON SW4 6QR London 35 Collingwood Avenue BLACKPOOL FY3 8DE Lancashire 170 Springwood Crescent EDGWARE HA8 8SH Edgware 19 Colonial Road FELTHAM TW14 8AA Feltham 50 Morse Close Harefield UXBRIDGE UB9 6DT Uxbridge Flat 25 Alfred Nunn House Chadwick Road LONDON NW10 4DJ London 107 Wigram Way STEVENAGE SG2 9UU Hertfordshire Flat 19 Abbey Court LONDON N3 3BG London Flat 50 Clement House LONDON SE8 5RY London Flat 1 Beatty Court Anson Drive SOUTHAMPTON SO19 8RQ Hampshire 19 Green Lane Overton WAKEFIELD WF4 4RF West Yorkshire 83 Marlborough Road BEDFORD MK40 4LE Bedfordshire 55A Argyle Road LONDON W13 0LW London 11 Bletchmore Close Harlington HAYES UB3 5EX Hayes 63 Mildmay Road STEVENAGE SG1 5RR Hertfordshire '; $subst = ""; $result = preg_replace($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