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  1. <?php
  2. $target = "word1 <a stuff amazon> </a> word2 amazon";
  3. $regex = "~(?i)<a.*?</a>(*SKIP)(*F)|amazon~";
  4. $repl= '<a href="http://w...content-available-to-author-only...n.com">Amazon</a>';
  5. $new=preg_replace($regex,$repl,$target);
  6. echo htmlentities($new);
  7.  
Success #stdin #stdout 0.01s 20568KB
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stdin
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Standard input is empty
stdout
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word1 &lt;a stuff amazon&gt; &lt;/a&gt; word2 &lt;a href=&quot;http://w...content-available-to-author-only...n.com&quot;&gt;Amazon&lt;/a&gt;
https://ideone.com/b4I7Ia
http://stackoverflow.com/q/6009415/
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
secret

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