Saving PHP codes saved in MySQL

If you want to convert these codes to use as an example in your application ... Here is the tip.

Use the htmlentities function to encode PHP code. This function will convert all applicable characters into HTML entities, for example:

This code

<?php
    $variable = ["A", "B", "C"];
    var_export($variable);
?>

Will be transformed into:

<?php

    $variable = ["A", "B", "C"];
    var_export($variable);

?>

Once you've done this, you'll be able to use it in your HTML as usual.

Meu código:
<pre>
    <code>
    &lt;?php
        $variable = [&quot;A&quot;, &quot;B&quot;, &quot;C&quot;];
        var_export($variable);
    ?&gt;
    </code>
</pre>

To use this function, simply do the following:

<?php
$str = "A 'quote' is <b>bold</b>";

// Outputs: A 'quote' is &lt;b&gt;bold&lt;/b&gt;
echo htmlentities($str);
?>