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

Code Generator

Language

Generated Code

$re = '/load_date\\\\\":\s+\\\\\"(?<load_date>[^\\\\]+)/m'; $str = ' {"_c0":{"0":"[","1":" {","2":" \\"table_name\\": \\"pc_dwh_rdv.gdh_ls2lo_s99\\"","3":" \\"deleted_count\\": 18","4":" \\"redelivered_count\\": 0","5":" \\"load_date\\": \\"2023-07-27\\"","6":" }","7":" {","8":" \\"table_name\\": \\"pc_dwh_rdv.gdh_spar_s99\\"","9":" \\"deleted_count\\": 8061","10":" \\"redelivered_count\\": 1","11":" \\"load_date\\": \\"2023-07-27\\"","12":" }","13":" {","14":" \\"table_name\\": \\"pc_dwh_rdv.gdh_tf3tx_s99\\"","15":" \\"deleted_count\\": 366619","16":" \\"redelivered_count\\": 0","17":" \\"load_date\\": \\"2023-07-27\\"","18":" }","19":" {","20":" \\"table_name\\": \\"pc_dwh_rdv.gdh_wechsel_s99\\"","21":" \\"deleted_count\\": 2","22":" \\"redelivered_count\\": 0","23":" \\"load_date\\": \\"2023-07-27\\"","24":" }","25":" {","26":" \\"table_name\\": \\"pc_dwh_rdv.gdh_revolvingcreditcard_s99\\"","27":" \\"deleted_count\\": 1285","28":" \\"redelivered_count\\": 0","29":" \\"load_date\\": \\"2023-07-27\\"","30":" }","31":" {","32":" \\"table_name\\": \\"pc_dwh_rdv.gdh_phd_s99\\"","33":" \\"deleted_count\\": 2484","34":" \\"redelivered_count\\": 204","35":" \\"load_date\\": \\"2023-07-27\\"","36":" }","37":" {","38":" \\"table_name\\": \\"pc_dwh_rdv.gdh_npk_s99\\"","39":" \\"deleted_count\\": 1705","40":" \\"redelivered_count\\": 0","41":" \\"load_date\\": \\"2023-07-27\\"","42":" }","43":" {","44":" \\"table_name\\": \\"pc_dwh_rdv.gdh_npk_s98\\"","45":" \\"deleted_count\\": 1517","46":" \\"redelivered_count\\": 0","47":" \\"load_date\\": \\"2023-07-27\\"","48":" }","49":" {","50":" \\"table_name\\": \\"pc_dwh_rdv.gdh_kontokorrent_s99\\"","51":" \\"deleted_count\\": 12998","52":" \\"redelivered_count\\": 0","53":" \\"load_date\\": \\"2023-07-27\\"","54":" }","55":" {","56":" \\"table_name\\": \\"pc_dwh_rdv.gdh_gds_s99\\"","57":" \\"deleted_count\\": 13","58":" \\"redelivered_count\\": 0","59":" \\"load_date\\": \\"2023-07-27\\"","60":" }","61":" {","62":" \\"table_name\\": \\"pc_dwh_rdv.gdh_dszins_s99\\"","63":" \\"deleted_count\\": 57","64":" \\"redelivered_count\\": 0","65":" \\"load_date\\": \\"2023-07-27\\"","66":" }","67":" {","68":" \\"table_name\\": \\"pc_dwh_rdv_gdh_monat.gdh_phd_izr_monthly_s99\\"","69":" \\"deleted_count\\": 1315","70":" \\"redelivered_count\\": 0","71":" \\"load_date\\": \\"2023-07-27\\"","72":" }","73":"]"}}'; 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