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<?php $string = "<b>I like 'PHP' & I think it is \"cool\"</b>"; echo "<pre/>"; var_dump(htmlentities($string, ENT_QUOTES)); var_dump(print htmlspecialchars($string)); ?>
Output for 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
<pre/>string(78) "&lt;b&gt;I like &#039;PHP&#039; &amp; I think it is &quot;cool&quot;&lt;/b&gt;" &lt;b&gt;I like &#039;PHP&#039; &amp; I think it is &quot;cool&quot;&lt;/b&gt;int(1)
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
<pre/>string(78) "&lt;b&gt;I like &#039;PHP&#039; &amp; I think it is &quot;cool&quot;&lt;/b&gt;" &lt;b&gt;I like 'PHP' &amp; I think it is &quot;cool&quot;&lt;/b&gt;int(1)
Output for 4.3.0 - 4.3.1
<pre/>
Process exited with code 139.

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