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<?php // phpcs:ignore SlevomatCodingStandard.TypeHints.DeclareStrictTypes.DeclareStrictTypesMissing namespace MailPoet\Util; if (!defined('ABSPATH')) exit; class Helpers { const DIVIDER = '***MailPoet***'; const LINK_TAG = 'link'; public static function isJson($string) { if (!is_string($string)) return false; json_decode($string); return json_last_error() == JSON_ERROR_NONE; } public static function replaceLinkTags( string $source, string $link, array $attributes = [], string $linkTag = self::LINK_TAG ) { if (empty($link)) return $source; $attributes = array_map(function($key) use ($attributes) { return sprintf('%s="%s"', $key, $attributes[$key]); }, array_keys($attributes)); $source = str_replace( '[' . $linkTag . ']', sprintf( '<a %s href="%s">', join(' ', $attributes), $link ), $source ); $source = str_replace('[/' . $linkTag . ']', '</a>', $source); return preg_replace('/\s+/', ' ', $source); } public static function getMaxPostSize($bytes = false) { $maxPostSize = ini_get('post_max_size'); if (!$bytes) return $maxPostSize; if ($maxPostSize === false) { return 0; } switch (substr($maxPostSize, -1)) { case 'M': case 'm': return (int)$maxPostSize * 1048576; case 'K': case 'k': return (int)$maxPostSize * 1024; case 'G': case 'g': return (int)$maxPostSize * 1073741824; default: return $maxPostSize; } } public static function flattenArray($array) { if (!$array) return; $flattenedArray = []; array_walk_recursive($array, function ($a) use (&$flattenedArray) { $flattenedArray[] = $a; }); return $flattenedArray; } public static function underscoreToCamelCase($str, $capitaliseFirstChar = false) { if ($capitaliseFirstChar) { $str[0] = strtoupper($str[0]); } return preg_replace_callback('/_([a-z])/', function ($c) { return strtoupper($c[1]); }, $str); } public static function camelCaseToUnderscore($str) { $str[0] = strtolower($str[0]); return preg_replace_callback('/([A-Z])/', function ($c) { return "_" . strtolower($c[1]); }, $str); } public static function joinObject($object = []) { return implode(self::DIVIDER, $object); } public static function splitObject($object = []) { return explode(self::DIVIDER, $object); } public static function getIP() { return (isset($_SERVER['REMOTE_ADDR'])) ? sanitize_text_field(wp_unslash($_SERVER['REMOTE_ADDR'])) : null; } public static function recursiveTrim($value) { if (is_array($value)) return array_map([__CLASS__, 'recursiveTrim'], $value); if (is_string($value)) return trim($value); return $value; } public static function escapeSearch(string $search): string { return str_replace(['\\', '%', '_'], ['\\\\', '\\%', '\\_'], trim($search)); // escape for 'LIKE' } public static function extractEmailDomain(string $email = ''): string { $arrayOfItems = explode('@', trim($email)); return strtolower(array_pop($arrayOfItems)); } }