- public static function getRandomHex($size = 64)
- {
- $byte_size = ceil($size / 2);
-
- $bytes = random_bytes($byte_size);
-
- $return = substr(bin2hex($bytes), 0, $size);
-
- return $return;
- }
-
- /**
- * @brief This is our primary input filter.
- *
- * Use this on any text input where angle chars are not valid or permitted
- * They will be replaced with safer brackets. This may be filtered further
- * if these are not allowed either.
- *
- * @param string $string Input string
- * @return string Filtered string
- */
- public static function escapeTags($string)
- {
- return str_replace(["<", ">"], ['[', ']'], $string);
- }
-
- /**
- * @brief Use this on "body" or "content" input where angle chars shouldn't be removed,
- * and allow them to be safely displayed.
- * @param string $string
- *
- * @return string
- */
- public static function escapeHtml($string)
- {
- return htmlspecialchars($string, ENT_COMPAT, 'UTF-8', false);
- }
-
- /**
- * @brief Generate a string that's random, but usually pronounceable. Used to generate initial passwords
- *
- * @param int $len length
- *
- * @return string
- */
- public static function getRandomName($len)
- {
- if ($len <= 0) {
- return '';
- }
-
- $vowels = ['a', 'a', 'ai', 'au', 'e', 'e', 'e', 'ee', 'ea', 'i', 'ie', 'o', 'ou', 'u'];
-
- if (mt_rand(0, 5) == 4) {
- $vowels[] = 'y';
- }
-
- $cons = [
- 'b', 'bl', 'br',
- 'c', 'ch', 'cl', 'cr',
- 'd', 'dr',
- 'f', 'fl', 'fr',
- 'g', 'gh', 'gl', 'gr',
- 'h',
- 'j',
- 'k', 'kh', 'kl', 'kr',
- 'l',
- 'm',
- 'n',
- 'p', 'ph', 'pl', 'pr',
- 'qu',
- 'r', 'rh',
- 's' ,'sc', 'sh', 'sm', 'sp', 'st',
- 't', 'th', 'tr',
- 'v',
- 'w', 'wh',
- 'x',
- 'z', 'zh'
- ];
-
- $midcons = ['ck', 'ct', 'gn', 'ld', 'lf', 'lm', 'lt', 'mb', 'mm', 'mn', 'mp',
- 'nd', 'ng', 'nk', 'nt', 'rn', 'rp', 'rt'];
-
- $noend = ['bl', 'br', 'cl', 'cr', 'dr', 'fl', 'fr', 'gl', 'gr',
- 'kh', 'kl', 'kr', 'mn', 'pl', 'pr', 'rh', 'tr', 'qu', 'wh', 'q'];
-
- $start = mt_rand(0, 2);
- if ($start == 0) {
- $table = $vowels;
- } else {
- $table = $cons;
- }
-
- $word = '';
-
- for ($x = 0; $x < $len; $x ++) {
- $r = mt_rand(0, count($table) - 1);
- $word .= $table[$r];
-
- if ($table == $vowels) {
- $table = array_merge($cons, $midcons);
- } else {
- $table = $vowels;
- }
-
- }
-
- $word = substr($word, 0, $len);
-
- foreach ($noend as $noe) {
- $noelen = strlen($noe);
- if ((strlen($word) > $noelen) && (substr($word, -$noelen) == $noe)) {
- $word = self::getRandomName($len);
- break;
- }
- }
-
- return $word;
- }
+ public static function getRandomHex($size = 64)
+ {
+ $byte_size = ceil($size / 2);
+
+ $bytes = random_bytes($byte_size);
+
+ $return = substr(bin2hex($bytes), 0, $size);
+
+ return $return;
+ }
+
+ /**
+ * Checks, if the given string is a valid hexadecimal code
+ *
+ * @param string $hexCode
+ *
+ * @return bool
+ */
+ public static function isHex($hexCode)
+ {
+ return !empty($hexCode) ? @preg_match("/^[a-f0-9]{2,}$/i", $hexCode) && !(strlen($hexCode) & 1) : false;
+ }
+
+ /**
+ * This is our primary input filter.
+ *
+ * Use this on any text input where angle chars are not valid or permitted
+ * They will be replaced with safer brackets. This may be filtered further
+ * if these are not allowed either.
+ *
+ * @param string $string Input string
+ * @return string Filtered string
+ */
+ public static function escapeTags($string)
+ {
+ return str_replace(["<", ">"], ['[', ']'], $string);
+ }
+
+ /**
+ * Use this on "body" or "content" input where angle chars shouldn't be removed,
+ * and allow them to be safely displayed.
+ * @param string $string
+ *
+ * @return string
+ */
+ public static function escapeHtml($string)
+ {
+ return htmlspecialchars($string, ENT_COMPAT, 'UTF-8', false);
+ }
+
+ /**
+ * Generate a string that's random, but usually pronounceable. Used to generate initial passwords
+ *
+ * @param int $len length
+ *
+ * @return string
+ */
+ public static function getRandomName($len)
+ {
+ if ($len <= 0) {
+ return '';
+ }
+
+ $vowels = ['a', 'a', 'ai', 'au', 'e', 'e', 'e', 'ee', 'ea', 'i', 'ie', 'o', 'ou', 'u'];
+
+ if (mt_rand(0, 5) == 4) {
+ $vowels[] = 'y';
+ }
+
+ $cons = [
+ 'b', 'bl', 'br',
+ 'c', 'ch', 'cl', 'cr',
+ 'd', 'dr',
+ 'f', 'fl', 'fr',
+ 'g', 'gh', 'gl', 'gr',
+ 'h',
+ 'j',
+ 'k', 'kh', 'kl', 'kr',
+ 'l',
+ 'm',
+ 'n',
+ 'p', 'ph', 'pl', 'pr',
+ 'qu',
+ 'r', 'rh',
+ 's', 'sc', 'sh', 'sm', 'sp', 'st',
+ 't', 'th', 'tr',
+ 'v',
+ 'w', 'wh',
+ 'x',
+ 'z', 'zh'
+ ];
+
+ $midcons = [
+ 'ck', 'ct', 'gn', 'ld', 'lf', 'lm', 'lt', 'mb', 'mm', 'mn', 'mp',
+ 'nd', 'ng', 'nk', 'nt', 'rn', 'rp', 'rt'
+ ];
+
+ $noend = [
+ 'bl', 'br', 'cl', 'cr', 'dr', 'fl', 'fr', 'gl', 'gr',
+ 'kh', 'kl', 'kr', 'mn', 'pl', 'pr', 'rh', 'tr', 'qu', 'wh', 'q'
+ ];
+
+ $start = mt_rand(0, 2);
+ if ($start == 0) {
+ $table = $vowels;
+ } else {
+ $table = $cons;
+ }
+
+ $word = '';
+
+ for ($x = 0; $x < $len; $x++) {
+ $r = mt_rand(0, count($table) - 1);
+ $word .= $table[$r];
+
+ if ($table == $vowels) {
+ $table = array_merge($cons, $midcons);
+ } else {
+ $table = $vowels;
+ }
+ }
+
+ $word = substr($word, 0, $len);
+
+ foreach ($noend as $noe) {
+ $noelen = strlen($noe);
+ if ((strlen($word) > $noelen) && (substr($word, -$noelen) == $noe)) {
+ $word = self::getRandomName($len);
+ break;
+ }
+ }
+
+ return $word;
+ }