Backup/Restore Divi Theme Options

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All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found 'serialize'.

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Detected usage of a possibly undefined superglobal array index: $_FILES["file"]["error"]. Check that the array index exists before using it.

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Mismatched text domain. Expected 'backup-restore-divi-theme-options' but got 'Divi'.

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Use of a direct database call is discouraged.

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Direct database call without caching detected. Consider using wp_cache_get() / wp_cache_set() or wp_cache_delete().

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date() is affected by runtime timezone changes which can cause date/time to be incorrectly displayed. Use gmdate() instead.

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wp_redirect() found. Using wp_safe_redirect(), along with the "allowed_redirect_hosts" filter if needed, can help avoid any chances of malicious redirects within code. It is also important to remember to call exit() after a redirect so that no other unwanted code is executed.

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Detected usage of a non-sanitized input variable: $_FILES["file"]["tmp_name"]

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screen_icon() has been deprecated since WordPress version 3.8.0.

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PHP file should prevent direct access. Add a check like: if ( ! defined( 'ABSPATH' ) ) exit;