What are the potential consequences of using short open tags in PHP?

Using short open tags in PHP can lead to compatibility issues with XML declarations and can make the code less portable. It is recommended to use the full `<?php` tag to ensure maximum compatibility with different server configurations. 

&lt;?php
// Code using full PHP tag
echo &quot;Hello, world!&quot;;
?&gt;

Keywords

short open tags PHP security vulnerability code readability backward compatibility

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