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);
}
