php将字符串转为二进制数据串
/** * 将字符串转换成二进制 * @param type $str * @return type */ function StrToBin($str){ //1.列出每个字符 $arr = preg_split('/(?<!^)(?!$)/u', $str); //2.unpack字符 foreach($arr as &$v){ $temp = unpack('H*', $v); $v = base_convert($temp[1], 16, 2); unset($temp); } return join(' ',$arr); } /** * 将二进制转换成字符串 * @param type $str * @return type */ function BinToStr($str){ $arr = explode(' ', $str); foreach($arr as &$v){ $v = pack("H".strlen(base_convert($v, 2, 16)), base_convert($v, 2, 16)); } return join('', $arr); }