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run code in 150+ php & hhvm versions
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<?php echo htmlspecialchars('&amp; <a href="hola \'que tal\'">\'holaaaaa\'</a>', ENT_QUOTES, 'UTF-8', true);
Output for 5.2.3 - 7.1.0
&amp;amp; &lt;a href=&quot;hola &#039;que tal&#039;&quot;&gt;&#039;holaaaaa&#039;&lt;/a&gt;
Output for 4.3.0 - 5.2.2
Warning: htmlspecialchars() expects at most 3 parameters, 4 given in /in/Xf4Y7 on line 4