中文截取

 function substr_cut($user_name){ $strlen= mb_strlen($user_name, ‘utf-8‘); $firstStr= mb_substr($user_name, 0, 1, ‘utf-8‘); $lastStr= mb_substr($user_name, -1, 1, ‘utf-8‘); return $strlen== 2 ? $firstStr . str_repeat(‘*‘, mb_strlen($user_name, ‘utf-8‘) - 1) : $firstStr . str_repeat("*", $strlen - 2) . $lastStr; } /* 普通截取 */ function hide_name($name, $sep = ‘*‘) { $len = strlen($name); $str = ‘‘; for ($i = 0; $i < $len; $i++) { $str .= ($i == 0 || $i == $len - 1) ? $name{$i} : $sep; } return $str; }