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

/
/
g

Test String

Code Generator

Generated Code

$re = '/\"([^\"]+?)\",?|([^,]+),?|,/'; $str = '発注先会社ID,EDI使用フラグ,発注先,メーカー名,注番,ステータス,伝票番号,品名,形式・材質,仕様・寸法,関連規格,図番,品番,手順No,作業明細,加工区分1,加工区分2,製番,手配№,合番,製番名,要求元依頼日,納期,要求元手配数,発注日,発注数,受入日,受入数,検収日,検収数,検査日,発注残,調達区分コード,調達,マル特,マル特文字,社内・社外,社内・社外文字,資材担当者emp_id,担当者,要求元emp_id,要求元,要求元5桁コード,要求元dept_id,要求元部署,回答日,メモ情報,単価,材料単価,外注単価,合計単価,合計金額,差額,準備AH,加工AH,AH計,準備SH,加工SH,SH計,統計コード,上位品名,上位形式,上位図番,上位品番,製番ID,製作分類,差戻し理由,回答更新日, 工程管理担当者,要求元3桁コード "2931","使用しない","(株)シースター・コーポレーショ","東海カ-ボン","235111693","未納:","","カーボンブラシ","MCG-6SD","MD-64B・寸法9*19*35","","A1428-35D*H","3814131405","0","","","","1000-00010","0","","ATS車上装置 車上子組立 リード線2.5m付","2022/04/28","2023/04/25","2","2023/04/25","38","","0","","0","","38","16","P","0","","0","内","672","K糸永 香太(55097)","672","K糸永 香太(55097)","55097","298","資)座間業務課","","","10","0","0","10","380","0","0","0","0","0","0","0","1-890","","","","","300964","304","","-","-","558", "22800","使用しない","株式会社コスモ","","235111797","未納:変更","H23050000009","test 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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