}
/**
- * https://stackoverflow.com/a/18506801
+ * https://stackoverflow.com/a/18506801.
+ *
* @param $string
+ *
* @return string
*/
- private function strToHex($string){
+ private function strToHex($string)
+ {
$hex = '';
- for ($i=0; $i<strlen($string); $i++){
- $ord = ord($string[$i]);
+ for ($i = 0; $i < \strlen($string); ++$i) {
+ $ord = \ord($string[$i]);
$hexCode = dechex($ord);
- $hex .= substr('0'.$hexCode, -2);
+ $hex .= substr('0' . $hexCode, -2);
}
- return strToUpper($hex);
+
+ return strtoupper($hex);
}
/**
- * https://stackoverflow.com/a/18506801
+ * https://stackoverflow.com/a/18506801.
+ *
* @param $hex
+ *
* @return string
*/
- private function hexToStr($hex){
- $string='';
- for ($i=0; $i < strlen($hex)-1; $i+=2){
- $string .= chr(hexdec($hex[$i].$hex[$i+1]));
+ private function hexToStr($hex)
+ {
+ $string = '';
+ for ($i = 0; $i < \strlen($hex) - 1; $i += 2) {
+ $string .= \chr(hexdec($hex[$i] . $hex[$i + 1]));
}
+
return $string;
}