regex101: PCRE2 (PHP) Match Workspace

^start of line

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

_ExampleXML_the literal text _ExampleXML_ (case sensitive)

Group 1(.*?)

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

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

Negated Character Class[^_]+

+matches at least one character outside the set below:

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

xmlthe literal text xml (case sensitive)

$end of line

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

^.*?_ExampleXML_(.*?)_[^_]+\.xml$

New

First_ExampleXML_Only_This_Should_Be_Name_20211234567.xml
Second_ExampleXML_OnlyThisShouldBeName_202156789.xml
Third_ExampleXML_Only_This_Should_Be_Name1_2021445678.xml
Fourth_ExampleXML_Only_This_Should_Be_Name2_20214567.xml

Substitution

First_ExampleXML_Only_This_Should_Be_Name_20211234567.xml
Second_ExampleXML_OnlyThisShouldBeName_202156789.xml
Third_ExampleXML_Only_This_Should_Be_Name1_2021445678.xml
Fourth_ExampleXML_Only_This_Should_Be_Name2_20214567.xml