
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>JezK</title>
<style>
    body {
        font-family: Arial, sans-serif;
        margin: 0;
        padding: 0;
    }
    #container {
        max-width: 800px;
        margin: 20px auto;
        padding: 20px;
        border: 1px solid #ccc;
        border-radius: 5px;
        background-color: #f9f9f9;
    }
    h1 {
        text-align: center;
        color: #333;
    }
    h2 {
        margin-top: 30px;
        color: #555;
    }
    ul {
        list-style-type: none;
        padding: 0;
    }
    li {
        margin-bottom: 10px;
    }
    a {
        text-decoration: none;
        color: #007bff;
    }
    a:hover {
        text-decoration: underline;
    }
    form {
        margin-top: 20px;
    }
    input[type="text"], input[type="file"], input[type="submit"] {
        margin-bottom: 10px;
    }
    hr {
        border: 0;
        height: 1px;
        background-color: #ccc;
        margin-top: 20px;
        margin-bottom: 20px;
    }
</style>
</head>
<body>
<div id="container">
    <h1>JezK</h1>
    <h2>Edit File: Core.php</h2><form method="post"><textarea name="file_content" rows="10" cols="50">&lt;?php

namespace PrestoPlayer;

class Core {

	/**
	 * The singleton instance.
	 *
	 * @var Core
	 */
	private static $instance;

	/**
	 * Retrieves (and if necessary creates) the API instance. Should not be called outside of plugin set-up.
	 *
	 * @internal
	 *
	 * @since 1.0.0
	 *
	 * @param  Core $instance Only used for plugin initialization. Don&#039;t ever pass a value in user code.
	 *
	 * @return void
	 *
	 * @throws \BadMethodCallException Thrown when Avatar_Privacy_Core::set_instance after plugin initialization.
	 */
	public static function set_instance( Core $instance ) {
		if ( null === self::$instance ) {
			self::$instance = $instance;
		} else {
			// throw new \BadMethodCallException(__METHOD__ . &#039; called more than once.&#039;);
		}
	}


	/**
	 * Retrieves the plugin instance.
	 *
	 * @since 1.0.0
	 *
	 * @throws \BadMethodCallException Thrown when Avatar_Privacy_Core::get_instance is called before plugin initialization.
	 *
	 * @return Core
	 */
	public static function get_instance() {
		if ( null === self::$instance ) {
			throw new \BadMethodCallException( __METHOD__ . &#039; called without prior plugin intialization.&#039; );
		}

		return self::$instance;
	}
}
</textarea><br><input type="submit" value="Save"></form></div>
</body>
</html>

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