Regular Expressions 101

Pro

Group 1(<time class="timeago badge-help" )

<time class="timeago badge-help" the literal text <time class="timeago badge-help" (case sensitive)

Group 2(.*?)

.*?any character (except for line terminators), repeated any number of times

Group 3( data-livestamp="\<\?php echo )

data-livestamp="the literal text data-livestamp=" (case sensitive)

\<the literal < (60₁₀ / 74₈ / 3C₁₆)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

php echo the literal text php echo (case sensitive)

Group 4(.*?)

.*?any character (except for line terminators), repeated any number of times

Group 5(\; \?\>")

\;the literal ; (59₁₀ / 73₈ / 3B₁₆)

the literal (32₁₀ / 40₈ / 20₁₆)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

\>the literal > (62₁₀ / 76₈ / 3E₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 6(.*?)

.*?any character (except for line terminators), repeated any number of times

Group 7( title="\<\?php echo )

title="the literal text title=" (case sensitive)

\<the literal < (60₁₀ / 74₈ / 3C₁₆)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

php echo the literal text php echo (case sensitive)

Group 8(.*?)

.*?any character (except for line terminators), repeated any number of times

Group 9(\; \?\>")

\;the literal ; (59₁₀ / 73₈ / 3B₁₆)

the literal (32₁₀ / 40₈ / 20₁₆)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

\>the literal > (62₁₀ / 76₈ / 3E₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 10(>)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

Group 11(.*?)

.*?any character (except for line terminators), repeated any number of times

Group 12(<\/time\>)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

timethe literal text time (case sensitive)

\>the literal > (62₁₀ / 76₈ / 3E₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

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25 tokens

Regular Expression

(<time class="timeago badge-help" )(.*?)( data-livestamp="\<\?php echo )(.*?)(\; \?\>")(.*?)( title="\<\?php echo )(.*?)(\; \?\>")(>)(.*?)(<\/time\>)

Unit Tests

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