- 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]));