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 = '/(?<=\$)(\d(?:,?\d)*(?:\.\d\d)?)(?:\s*-\s*\$?(\d(?:,?\d)*(?:\.\d\d)?))?\s+per\s+(?:year|month|day|hour)/m'; $str = 'ex_1 <- "starting salary: $18 per hour", "retention bonus $500", "signing bonus $150", "our nannies/babysitters choose the days they can work 8am-6pm and are in a “standby” status on their days on" ex_2 <- pay: $65,000.00 - $95,623.00 per year ex_3 <- "tuition assistance (100% coverage for select degrees or up to $5,250/year)", "pay: $16.25 - $16.50 per hour" ex_4 <- salary: $22.00 - 30.00 per hour ex_5 <- $50,000.00 per year ex_6 <- $15.00 per hour ex_7 <- character(0) ex_8 <- "salary: $22.00 - $30.00 per hour", "pay: $47,257.00 - $49,838.00 per year") What I would like to extract: ex_1 <- 18 per hour ex_2 <- 65,000.00 - 95,623.00 per year ex_3 <- 16.25 - 16.50 per hour ex_4 <- 22.00 - 30.00 per hour ex_5 <- 50,000.00 per year ex_6 <- 15 per hour ex_7 <- "" ex_8 <- 22.00 - 30.00 per hour 47,257.00 - 49,838.00 per year '; preg_match_all($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