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<?php

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if (!defined('ABSPATH') && !defined('MCDATAPATH') && !defined('PHP_ERR_MONIT_PATH')) exit;

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if (!class_exists('BVHelper')) :

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class BVHelper {

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public static function safePregMatch($pattern, $subject, &$matches = null, $flags = 0, $offset = 0) {

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if (!is_string($pattern) || !is_string($subject)) {

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return false;

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}

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return preg_match($pattern, $subject, $matches, $flags, $offset);

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}

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# XNOTE - The below function assumes valid input

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# $array should be an array and $keys should be an array of string, or integer data

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public static function filterArray($array, $keys) {

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$filteredArray = array();

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foreach ($keys as $key) {

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if (array_key_exists($key, $array)) {

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$filteredArray[$key] = $array[$key];

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}

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}

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return $filteredArray;

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}

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# XNOTE - The below function assumes valid input

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# $array should be an array and $keys should be an array of string, or integer data

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public static function digArray($array, $keys) {

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if (empty($keys)) {

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return null;

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}

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$curr_array = $array;

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foreach ($keys as $key) {

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if (is_array($curr_array) && array_key_exists($key, $curr_array)) {

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$curr_array = $curr_array[$key];

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} else {

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return null;

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}

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}

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return $curr_array;

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}

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public static function arrayKeyFirst($array) {

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if (!function_exists('array_key_first')) {

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foreach ($array as $key => $value) {

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return $key;

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}

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return null;

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}

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return array_key_first($array);

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}

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public static function safePregReplace($replace_regex, $replace_string, $element) {

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if (!is_string($replace_regex) || !is_string($replace_string) || !is_string($element)) {

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return $element;

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}

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$updated_element = preg_replace($replace_regex, $replace_string, $element);

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if ($updated_element === null && preg_last_error() !== PREG_NO_ERROR) {

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return $element;

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}

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return $updated_element;

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}

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public static function safeStrReplace($search, $replace, $subject) {

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if (!is_string($search) || !is_string($replace) || !is_string($subject)) {

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return $subject;

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}

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$updated_subject = str_replace($search, $replace, $subject);

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if ($updated_subject === null) {

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return $subject;

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}

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return $updated_subject;

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}

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public static function preInitWPHook($hook_name, $function_name, $priority, $accepted_args) {

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global $wp_filter;

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// Check if $wp_filter is not initialized or not an array

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if (!isset($wp_filter) || !is_array($wp_filter)) {

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$wp_filter = array();

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}

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// Check if the hook exists in $wp_filter

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if (!isset($wp_filter[$hook_name])) {

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$wp_filter[$hook_name] = array();

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}

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// Check if the priority exists for the hook

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if (!isset($wp_filter[$hook_name][$priority])) {

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$wp_filter[$hook_name][$priority] = array();

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}

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// Add the filter function information to the $wp_filter array

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$wp_filter[$hook_name][$priority][] = array(

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'function' => $function_name,

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'accepted_args' => $accepted_args,

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);

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}

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}

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endif;

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