regex101: PCRE2 (PHP) Substitution Workspace

Pro

Group 1(<h[2-4])

<hthe literal text <h (case sensitive)

Character Class[2-4]

2-4one character from 2 (50₁₀) to 4 (52₁₀)

Group 2(.*id=")

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

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

Group 3([^"]*)

Negated Character Class[^"]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 4(">[\s\S]*?)

">the literal text ">

Character Class[\s\S]*?

*?matches any number of characters from the set below:

\sany whitespace character

\Sany non-whitespace character

Group 5(<\/h[2-4]>)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

hthe literal h (104₁₀ / 150₈ / 68₁₆) (case sensitive)

Character Class[2-4]

2-4one character from 2 (50₁₀) to 4 (52₁₀)

>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

25 tokens

Regular Expression

(<h[2-4])(.*id=")([^"]*)(">[\s\S]*?)(<\/h[2-4]>)

<h2 id="bonus-for-hugo-templates">Bonus for Hugo templates
</h2>

<h2 id="eu-mando-você-obedece">Eu mando, você obedece</h2>

<h2 id="body-not-mind-fn-1">Body not mind<sup class="footnote-reference"><a id="footnote-reference-1" href="#footnote-1">1</a></sup></h2>

Substitution

${1}${2}${3}${4}<a href="#${3}" class="anchor" aria-label="Permalink"><small>Permalink</small></a>${5}`

<h2 id="bonus-for-hugo-templates">Bonus for Hugo templates
</h2>

<h2 id="eu-mando-você-obedece">Eu mando, você obedece</h2>

<h2 id="body-not-mind-fn-1">Body not mind<sup class="footnote-reference"><a id="footnote-reference-1" href="#footnote-1">1</a></sup></h2>