What are the potential pitfalls of using inline JavaScript in PHP scripts?

Using inline JavaScript in PHP scripts can lead to mixing of concerns and make the code harder to maintain. It can also make the code less readable and harder to debug. To solve this issue, it's recommended to separate the JavaScript code into external files and include them in the HTML document using the <script> tag. 

&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;External JavaScript Example&lt;/title&gt;
    &lt;script src=&quot;external.js&quot;&gt;&lt;/script&gt;
&lt;/head&gt;
&lt;body&gt;
    &lt;h1&gt;Hello World!&lt;/h1&gt;
&lt;/body&gt;
&lt;/html&gt;

Keywords

inline JavaScript PHP scripts security vulnerabilities cross-site scripting code maintainability

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