/** * 隱藏部分字串 * # 此方法多用於手機號碼或身份證號、銀行卡號的中間部分數位的隱藏 */ function func_substr_replace($str, $replacement = '*', $start = 1, $length = 3) { $len = mb_strlen($str,'utf-8'); if ($len > intval($start+$length)) { $str1 = mb_substr($str,0,$start,'utf-8'); $str2 = mb_substr($str,intval($start+$length),NULL,'utf-8'); } else { $str1 = mb_substr($str,0,1,'utf-8'); $str2 = mb_substr($str,$len-1,1,'utf-8'); $length = $len - 2; } $new_str = $str1; for ($i = 0; $i < $length; $i++) { $new_str .= $replacement; } $new_str .= $str2; return $new_str; }
/** * 只保留字串首尾字元,隱藏中間用*代替(兩個字元時只顯示第一個) * @param string $user_name 姓名 * @return string 格式化後的姓名 */ function substr_cut($user_name){ $strlen = mb_strlen($user_name, 'utf-8'); $firstStr = ucfirst(strtolower(mb_substr($user_name, 0, 3, 'utf-8'))); $lastStr = strtolower(substr($user_name, -3)); if($strlen == 2){ $hideStr = str_repeat('*', strlen($user_name, 'utf-8') - 1); $result = $firstStr . $hideStr ; }else { $hideStr = substr(str_repeat("*", $strlen - 6), 0, 3); $result = $firstStr . $hideStr . $lastStr; } return $result; }
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