Regular Expressions 101

Group 1(\bhref=\"([^\"]*?)\")

\ban ASCII word boundary

href=the literal text href= (case sensitive)

\"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 2([^\"]*?)

Negated Character Class[^\"]*?

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

\"the literal " (34₁₀ / 42₈ / 22₁₆)

Negative Lookahead(?!.*?href)

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

hrefthe literal text href (case sensitive)

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(\bhref=\"([^\"]*?)\")(?!.*?href)

Test String
New

<span class="smallfont" style="white-space:nowrap">(<img class="inlineimg" src="https://static.kharkovforum.com/images/misc/multipage.gif" alt="перейти на страницу" border="0" />  <a href="showthread.php?t=5239160">1</a> <a href="showthread.php?t=5239160&amp;page=2">2</a>)</span>
		</div>

		

		<div class="smallfont">
			
			
				<span style="cursor:pointer" onclick="window.open('member.php?u=502041', '_self')">I-am</span>
			
		</div>

Regular Expression

Test StringNew

Test String
New