PHP实现手机号码中间四位数替换成星号*
示例：
字符串截取法直线导轨滑台
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/** * 中间加密 字符串截取法
*/
public static function encryptTel($tel) {
$new_tel = substr($tel, 0, 3).\'****\'.substr($tel, 7);
return $new_tel;
} |
替换字符串
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/** * 中间加密 替换字符串的子串
*/
public static function encryptTel($tel) {
$new_tel = substr_replace($tel, \'****\', 3, 4);
return $new_tel;
} |
正则
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/** * 中间加密 用正则
*/
public static function encryptTel($tel) {
$new_tel = preg_replace(\'/(\d{3})\d{4}(\d{4})/\', \'$1****$2\', $tel);
return $new_tel;
} |