Metronet Tag Manager

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Detected usage of a possibly undefined superglobal array index: $_POST['consent_mode']. Check that the array index exists before using it.

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Detected usage of a non-sanitized input variable: $_POST['external_tag_manager']

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$_POST['external_tag_manager'] not unslashed before sanitization. Use wp_unslash() or similar

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Function "register_block_type()" requires WordPress 5.0.0, but your plugin minimum supported version is WordPress 4.2.0.

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

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No PHP code was found in this file and short open tags are not allowed by this install of PHP. This file may be using short open tags but PHP does not allow them.

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Resource version not set in call to wp_register_script(). This means new versions of the script may not always be loaded due to browser caching.

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strip_tags() is discouraged. Use the more comprehensive wp_strip_all_tags() instead.

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In footer ($in_footer) is not set explicitly wp_register_script; It is recommended to load scripts in the footer. Please set this value to `true` to load it in the footer, or explicitly `false` if it should be loaded in the header.

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