regex101: PCRE (Legacy) Match Workspace

Pro

<img the literal text <img (case sensitive)

Negated Character Class[^<]*

*matches any number of characters outside the set below:

<the literal < (60₁₀ / 74₈ / 3C₁₆)

Group 1(height:[ \d]+px;?)

height:the literal text height: (case sensitive)

Character Class[ \d]+

+matches at least one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

\da digit

pxthe literal text px (case sensitive)

;?optionally matches the literal ; (59₁₀ / 73₈ / 3B₁₆)

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

25 tokens

Regular Expression

<img [^<]*(height:[ \d]+px;?)[^>]*>

New

<div style="height: 300px"><img style="color:red;" src="#"><aaa style="height:400px"><img src="t.jpg" title="ā" style="width:1000px; height: 300px"><img src="t.jpg" style="width:1000px; height: 500px"><eee src="t.jpg" style="width:1000px; height: 500px"><img alt="ķķ" src="#" style="height:2450px; visibility:hidden"/>

Extraction

<div style="height: 300px"><img style="color:red;" src="#"><aaa style="height:400px"><img src="t.jpg" title="ā" style="width:1000px; height: 300px"><img src="t.jpg" style="width:1000px; height: 500px"><eee src="t.jpg" style="width:1000px; height: 500px"><img alt="ķķ" src="#" style="height:2450px; visibility:hidden"/>