regex101: PCRE (Legacy) Match Workspace

Positive Lookbehind(?<=<\/a>)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

a>the literal text a> (case sensitive)

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

Group 1(leoshi)

leoshithe literal text leoshi (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

(?<=<\/a>).*?(leoshi)

New

Sample text for testing:<a href="http://www.baidu.com" title="leoshi">leoshi</a>ahdfd leoshi <a href="http://www.baidu.com" title="leoshi">leoshi</a>for details balala...
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Sample text for testing:<a href="http://www.baidu.com" title="leoshi">leoshi</a>bbfd fdleoshi Sample text for testing:<a href="http://www.baidu.com" title="leoshi">leoshi</a>ahdfd leoshi <a href="http://www.baidu.com" title="leoshi">leoshi</a>for details balala...for details balala...
Welcome to RegExr v2.1 by gskinner.com, proudly hosted by Media Temple!

Regular Expressions 101

Regular Expression

Substitution