FACTO – Facturación Electrónica

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

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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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rand() is discouraged. Use the far less predictable wp_rand() instead.

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Short PHP opening tag used with echo; expected "<?php echo $fh_item ..." but found "<?= $fh_item ..."

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File operations should use WP_Filesystem methods instead of direct PHP filesystem calls. Found: fclose().

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

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Use placeholders and $wpdb->prepare(); found $query

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File operations should use WP_Filesystem methods instead of direct PHP filesystem calls. Found: fopen().

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parse_url() is discouraged because of inconsistency in the output across PHP versions; use wp_parse_url() instead.

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The use of function eval() is forbidden

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Use placeholders and $wpdb-&gt;prepare(); found interpolated variable $cc_placeholders at WHERE tax_rate_class = &#039;&#039; AND tax_rate_country IN ($cc_placeholders)&quot;

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Unescaped parameter $query used in $wpdb->get_results()\n$query assigned unsafely at line 2339.

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Replacement variables found, but no valid placeholders found in the query.

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print_r() found. Debug code should not normally be used in production.

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All output should be run through an escaping function (like esc_html_e() or esc_attr_e()), found '_e'.