[doc-en] master: Add \Q, \E and \K to the PCRE escape sequences (#5964)

Author: qodelicious (qodelicious) Committer: GitHub (web-flow) Pusher: lacatoire Date: 2026-10-19T10:50:25+02:00 Commit: https://github.com/php/doc-en/commit/75a5eb81be58ce50889c429c5d32b321af016d23 Raw diff: https://github.com/php/doc-en/commit/75a5eb81be58ce50889c429c5d32b321af016d23.diff Add \Q, \E and \K to the PCRE escape sequences (#5964) * Add \Q, \E and \K to the PCRE escape sequences Fixes #4623 * Use simpara for the sequences intro Changed paths: M reference/pcre/pattern.syntax.xml Diff: diff --git a/reference/pcre/pattern.syntax.xml b/reference/pcre/pattern.syntax.xml index 98d239fe64df..473459a7f938 100644 --- a/reference/pcre/pattern.syntax.xml +++ b/reference/pcre/pattern.syntax.xml @@ -610,6 +610,25 @@ <function>preg_match</function>. It differs from <literal>\A</literal> when the value of <parameter>offset</parameter> is non-zero. </para> + <simpara> + Backslash is also used for the following sequences: + </simpara> + <para> + <variablelist> + <varlistentry> + <term><emphasis>\Q</emphasis></term> + <listitem><simpara>start of a quoted sequence, metacharacters up to <literal>\E</literal> are treated as literals</simpara></listitem> + </varlistentry> + <varlistentry> + <term><emphasis>\E</emphasis></term> + <listitem><simpara>end of a quoted sequence started by <literal>\Q</literal></simpara></listitem> + </varlistentry> + <varlistentry> + <term><emphasis>\K</emphasis></term> + <listitem><simpara>reset the start of the reported match</simpara></listitem> + </varlistentry> + </variablelist> + </para> <para> <literal>\Q</literal> and <literal>\E</literal> can be used to ignore