function hideStr($string, $bengin = 0, $len = 4, $type = 0, $glue = "@"){
if (empty($string))
return false;
$array = array();
if ($type == 0 || $type == 1 || $type == 4) {
$strlen = $length = mb_strlen($string);
while ($strlen) {
$array[] = mb_substr($string, 0, 1, "utf8");
$string = mb_substr($string, 1, $strlen, "utf8");
$strlen = mb_strlen($string);
}
}
if ($type == 0) {
for ($i = $bengin; $i < ($bengin + $len); $i++) {
if (isset($array[$i]))
$array[$i] = "*";
}
$string = implode("", $array);
} else if ($type == 1) {
$array = array_reverse($array);
for ($i = $bengin; $i < ($bengin + $len); $i++) {
if (isset($array[$i]))
$array[$i] = "*";
}
$string = implode("", array_reverse($array));
} else if ($type == 2) {
$array = explode($glue, $string);
$array[0] = hideStr($array[0], $bengin, $len, 1);
$string = implode($glue, $array);
} else if ($type == 3) {
$array = explode($glue, $string);
$array[1] = hideStr($array[1], $bengin, $len, 0);
$string = implode($glue, $array);
} else if ($type == 4) {
$left = $bengin;
$right = $len;
$tem = array();
for ($i = 0; $i < ($length - $right); $i++) {
if (isset($array[$i]))
$tem[] = $i >= $left ? "*" : $array[$i];
}
$array = array_chunk(array_reverse($array), $right);
$array = array_reverse($array[0]);
for ($i = 0; $i < $right; $i++) {
$tem[] = $array[$i];
}
$string = implode("", $tem);
}
return $string;
}
$str = '12345678901';
echo hideStr($str,2,4);
将一个字符串部分字符用*替代隐藏
@param string $string 待转换的字符串
@param int $bengin 起始位置,从0开始计数,当$type=4时,表示左侧保留长度
@param int $len 需要转换成*的字符个数,当$type=4时,表示右侧保留长度
@param int $type 转换类型:0,从左向右隐藏;1,从右向左隐藏;2,从指定字符位置分割前由右向左隐藏;3,从指定字符位置分割后由左向右隐藏;4,保留首末指定字符串
@param string $glue 分割符
@return string 处理后的字符串