php实现替换手机号中间数字为*号及隐藏IP最后几位的方法

$string = "13826589549";$pattern = "/(/d{3})/d/d(/d{2})/";$replacement = "/$1****/$3";print preg_replace($pattern, $replacement, $string);

$string = "13826589549";$pattern = "/(/d{3})/d{4}(/d{4})/";$replacement = "/$1****/$2";print preg_replace($pattern, $replacement, $string);

function suohao($phone){ $p = substr($phone,0,3)."****".substr($phone,7,4); return $p;}echo suohao($string);

<?php echo preg_replace("/[^/.]{1,3}$/","*",$ip); ?>