What are the differences between PHP and Javascript in terms of their execution environments and syntax requirements?

PHP is a server-side scripting language that is executed on the server before the HTML is sent to the client's browser. Javascript, on the other hand, is a client-side scripting language that is executed on the client's browser after the HTML has been received. In terms of syntax, PHP code is embedded within <?php ?> tags in an HTML document, while Javascript code is enclosed within <script> </script> tags. 

&lt;?php
// PHP code snippet
echo &quot;Hello, World!&quot;;
?&gt;

Keywords

PHP Javascript execution environments syntax requirements differences

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