PHP with asterisks to hide some of the user name, ID, IP, mobile phone number instance _php instance

A, imitation Taobao comments purchase records hidden part of the user name, the following code is available.

Copy Code code as follows:

function Cut_str ($string, $sublen, $start = 0, $code = ' UTF-8 ')
{
if ($code = = ' UTF-8 ')
{
$pa = "/[\x01-\x7f]| [\XC2-\XDF] [\x80-\xbf]|\xe0[\xa0-\xbf][\x80-\xbf]| [\xe1-\xef] [\X80-\XBF] [\x80-\xbf]|\xf0[\x90-\xbf][\x80-\xbf][\x80-\xbf]| [\xf1-\xf7] [\X80-\XBF] [\X80-\XBF] [\x80-\xbf]/];
Preg_match_all ($pa, $string, $t _string);

if (count ($t _string[0])-$start > $sublen) return join (', Array_slice ($t _string[0], $start, $sublen))
Return join (', Array_slice ($t _string[0], $start, $sublen));
}
Else
{
$start = $start *2;
$sublen = $sublen *2;
$strlen = strlen ($string);
$tmpstr = ';

for ($i =0; $i < $strlen; $i + +)
{
if ($i >= $start && $i < ($start + $sublen))
{
if (Ord (substr ($string, $i, 1)) >129)
{
$tmpstr. = substr ($string, $i, 2);
}
Else
{
$tmpstr. = substr ($string, $i, 1);
}
}
if (Ord (substr ($string, $i, 1)) >129) $i + +;
}
if (strlen ($TMPSTR) < $strlen) $tmpstr. = "...";
return $tmpstr;
}
}

Use examples:

Copy Code code as follows:

$STR = "The Buddha's Palm";
Echo Cut_str ($str, 1, 0). ' * * * CUT_STR ($STR, 1,-1);
Output: such as * * palm

Second, PHP ID number 4 digits hidden with the asterisk

A very simple question, want to ID card number of the birthday of the 4-bit hidden, a start to check the function incredibly did not see, and then used several functions to deal with, feel too troublesome on the internet search, and later found that a function can be directly processed, so record:
Introduction to the Substr_replace () function:

Copy Code code as follows:

Definitions and usage
The Substr_replace () function replaces part of a string with another string.
Grammar
Substr_replace (String,replacement,start,length)
Parameter description
String required. Specify the string to check.
Replacement
Necessary. Specify the string to insert.
Start
Necessary. Specify where the string begins to be replaced.
Positive number-replace at start offset
Negative number-replaces the start offset at the end of the string
0-Start the substitution at the first character in the string
Length
Optional. Specify how many characters to replace.
Positive number-The length of the string being replaced
Negative numbers-the number of replaced characters starting at the end of the string
0-Insert rather than replace

Use instance:

Copy Code code as follows:

[Code]
echo strlen ($idcard) ==15?substr_replace ($idcard, "* * *", 8,4):(strlen ($idcard) ==18?substr_replace ($idcard, "* * *", 10,4): "ID number is not normal!" ");

[/code]

Third, replace the IP last one with an asterisk

Replace the last IP with the asterisk code as follows:
Method One:

Copy Code code as follows:

<?php
str = ' 1.1.1.1 ';
reg = '/(?: \ D+\.) {3}) \d+/';
Echo preg_replace (Reg, "\\1*", str);
?>

Method Two:

Copy Code code as follows:

<?php
$ip =$_server[' remote_addr '];
$ip _arr= explode ('. ', $IP);
$ip _arr[3]= ' * ';
$ip = Implode ('. ', $ip _arr);
Echo $ip;
?>

Four, mobile phone number in the middle with * asterisk hidden method Five

Copy Code code as follows:

Method One
function Mobile_asterisk ($mobile)
{
$mobile _asterisk = substr ($mobile, 0,4). " ". substr ($mobile, 8, 3);
return $mobile _asterisk;
}
Echo Mobile_asterisk ("15810904579");
Method Two
echo Preg_replace ("/(1\d{1,4}) \d\d\d\d (\d{3,4})/", "\$1****\$2", "15810904579");

Method Three
$haoma = "15012345678";
echo Preg_replace ("/(D{3}) d{5}/", "$1*****", $haoma);
Output 150*****678

Method Four
$tel 1 = "13888111188";
$tel 2 = "+8613888111188";
$tel 3 = "0861088111188";
$tel 4 = "086-010-88111188";
echo preg_replace ('/(^.*) \d{4} (\d{4}) $/', ' \\1****\\2 ', $tel 1), "\ n";
echo preg_replace ('/(^.*) \d{4} (\d{4}) $/', ' \\1****\\2 ', $tel 2), "\ n";
echo preg_replace ('/(^.*) \d{4} (\d{4}) $/', ' \\1****\\2 ', $tel 3), "\ n";
echo preg_replace ('/(^.*) \d{4} (\d{4}) $/', ' \\1****\\2 ', $tel 4), "\ n";

Method Five
Four digits in the middle of a masked phone number
function Hidtel ($phone)
{
$IsWhat = Preg_match ('/(0[0-9]{2,3}[\-]?[ 2-9][0-9]{6,7}[\-]? [0-9]?) /I ', $phone); Fixed telephone
if ($IsWhat = = 1)
{
return Preg_replace ('/(0[0-9]{2,3}[\-]?[ 2-9]) [0-9]{3,4} ([0-9]{3}[\-]?[ 0-9]?) /I ', ' $1****$2 ', $phone);

}
Else
{
return Preg_replace ('/(1[358]{1}[0-9]) [0-9]{4} ([0-9]{4})/I ', ' $1****$2 ', $phone);
}
}

In addition, the verification of the identity card number of the site also provides identity card attribution of the query tools are as follows:

Http://tools.jb51.net/bianmin/sfz