regex101: PCRE (Legacy) Match Workspace

<the literal < (60₁₀ / 74₈ / 3C₁₆)

Non-Capturing Group(?:div|i)

1st Alternativediv

divthe literal text div (case sensitive)

2nd Alternativei

ithe literal i (105₁₀ / 151₈ / 69₁₆) (case sensitive)

Non-Capturing Group(?:.*?(?:class|data-id)="([^"]+)")?

?repeats the group contents below at most once:

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

Non-Capturing Group(?:class|data-id)

1st Alternativeclass

classthe literal text class (case sensitive)

2nd Alternativedata-id

data-idthe literal text data-id (case sensitive)

="the literal text ="

Group 1([^"]+)

Negated Character Class[^"]+

+matches at least one character outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

Non-Capturing Group(?:.*?(?:class|data-id)="([^"]+)")?

?repeats the group contents below at most once:

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

Non-Capturing Group(?:class|data-id)

1st Alternativeclass

classthe literal text class (case sensitive)

2nd Alternativedata-id

data-idthe literal text data-id (case sensitive)

="the literal text ="

Group 2([^"]+)

Negated Character Class[^"]+

+matches at least one character outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

Negated Character Class[^>]*

*matches any number of characters outside the set below:

>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

Search reference

Regular Expression

<(?:div|i)(?:.*?(?:class|data-id)="([^"]+)")?(?:.*?(?:class|data-id)="([^"]+)")?[^>]*>

New

<!-- I want to: $matches[1] == test_class  | $matches[2] == null -->
<div class="test_class"> 

<!-- I want to: $matches[1] == test_class | $matches[2] == 1 -->
<div class="test_class" data-id="1"> 

<!-- I want to: $matches[1] == test_class | $matches[2] == 1 -->
<div id="test_id" class="test_class" data-id="1">

<!-- I want to: $matches[1] == test_class test_class2 | $matches[2] == 1 -->
<div class="test_class test_class2" id="test_id" data-id="1">

<!-- I want to: $matches[1] == 1 | $matches[2] == test_class test_class2 -->
<div data-id="1" class="test_class test_class2" id="test_id" >

<!-- I want to: $matches[1] == 1 | $matches[2] == test_class test_class2 -->
<div id="test_id" data-id="1" class="test_class test_class2">

<!-- I want to: $matches[1] == test_class | $matches[2] == 1 -->
<div class="test_class" id="test_id" data-id="1">

Regular Expressions 101

Regular Expression

Extraction