regex101: PCRE (Legacy) Match Workspace

Group 1(<iframe)

<iframethe literal text <iframe (case sensitive)

Group 2([\s\S]*?)

Character Class[\s\S]*?

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

\sany whitespace character

\Sany non-whitespace character

Group 3(amazon.adsystem.com)

amazonthe literal text amazon (case sensitive)

.any character (except for line terminators)

adsystemthe literal text adsystem (case sensitive)

.any character (except for line terminators)

comthe literal text com (case sensitive)

Group 4([\s\S]*?)

Character Class[\s\S]*?

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

\sany whitespace character

\Sany non-whitespace character

Group 5(<\/iframe>)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

iframe>the literal text iframe> (case sensitive)

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)([\s\S]*?)(amazon.adsystem.com)([\s\S]*?)(<\/iframe>)

New

<iframe style="width:120px;height:240px;" marginwidth="0" marginheight="0" scrolling="no" frameborder="0" src="//ws-eu.amazon-adsystem.com/widgets/q?ServiceVersion=20070822&OneJS=1&Operation=GetAdHtml&MarketPlace=GB&source=ac&ref=qf_sp_asin_til&ad_type=product_link&tracking_id=keepchickens-21&marketplace=amazon&region=GB&placement=1473689309&asins=1473689309&linkId=2ee7072c3050c40cded9c2ecdb317332&show_border=true&link_opens_in_new_window=true&price_color=333333&title_color=0066c0&bg_color=ffffff">
</iframe> some other text <iframe style="width:120px;height:240px;" marginwidth="0" marginheight="0" scrolling="no" frameborder="0" src="//ws-eu.amazon-adsystem.com/widgets/q?ServiceVersion=20070822&OneJS=1&Operation=GetAdHtml&MarketPlace=GB&source=ac&ref=qf_sp_asin_til&ad_type=product_link&tracking_id=keepchickens-21&marketplace=amazon&region=GB&placement=1473689309&asins=1473689309&linkId=2ee7072c3050c40cded9c2ecdb317332&show_border=true&link_opens_in_new_window=true&price_color=333333&title_color=0066c0&bg_color=ffffff">
</iframe>