regex101: PCRE (Legacy) Match Workspace

<iframethe literal text <iframe (case sensitive)

Negated Character Class[^>]*?

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

>the literal > (62₁₀ / 76₈ / 3E₁₆)

title=the literal text title= (case sensitive)

Group 1(\\\'|\\"|[\'"])

1st Alternative\\\'

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

\'the literal ' (39₁₀ / 47₈ / 27₁₆)

2nd Alternative\\"

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

3rd Alternative[\'"]

Character Class[\'"]

\'the literal ' (39₁₀ / 47₈ / 27₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 2([^>]*?)

Negated Character Class[^>]*?

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

>the literal > (62₁₀ / 76₈ / 3E₁₆)

\1the text saved by group 1

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

<iframe[^>]*?title=(\\\'|\\"|[\'"])([^>]*?)\1

New

<img src="..." title="title"/>
'<iframe src="..." title="title" width="324" height="auto"/>'
"<iframe src='...' width='324' height='auto' title='title' ></iframe>"
"<iframe src=\"...\" title=\"title\" width=\"324\" height=\"auto\"/>"
'<iframe src=\'...\' width=\'324\' height=\'auto\' title=\'title\' ></iframe>'
"<iframe src=\"...\" title=\"title's with apostrophe\" width=\"324\" height=\"auto\"/>"
"<iframe src='...' width='324' height='auto' title='title \"quoting\" something' ></iframe>"