PHPデータ脱敏表示(携帯番号、銀行カード番号、身分証明書など)
1163 ワード
/**
*
* @param $string
* @param int $start
* @param int $length
* @param string $re
* @return bool|string
* :
* dataDesensitization('18811113683', 3, 4); //188****3683
* dataDesensitization(' ', 0, -1); //**
*/
function dataDesensitization($string, $start = 0, $length = 0, $re = '*')
{
if (empty($string)){
return false;
}
$strarr = array();
$mb_strlen = mb_strlen($string);
while ($mb_strlen) {//
$strarr[] = mb_substr($string, 0, 1, 'utf8');
$string = mb_substr($string, 1, $mb_strlen, 'utf8');
$mb_strlen = mb_strlen($string);
}
$strlen = count($strarr);
$begin = $start >= 0 ? $start : ($strlen - abs($start));
$end = $last = $strlen - 1;
if ($length > 0) {
$end = $begin + $length - 1;
} elseif ($length < 0) {
$end -= abs($length);
}
for ($i = $begin; $i <= $end; $i++) {
$strarr[$i] = $re;
}
if ($begin >= $end || $begin >= $last || $end > $last) return false;
return implode('', $strarr);
}