"Regular" How to write the user name that is submitted does not contain the following special characters? Method of seeking

How does the "regular" write that the user name submitted does not contain the following special characters? Method of seeking
This post was last edited by default7 on 2014-05-25 18:39:45

requirements for the submitted registered user name $uname:
1 The required name can be mixed in Chinese and English, but the middle cannot contain spaces
2 cannot contain special characters in the following $arr 2
3 but can contain the left and right brackets "(" ") in Chinese

 function Checkreg ($uname)
{
/**
Write a short
$arr 2 = Array (
' ~ ', '! ', ' @ ', ' # ', ' $ ', '% ', ' ^ ', ' & ', ' * ', ' _ ', ' + ', ' | ', '-', ' = ', ' \ \ ',
' {', '} ', ' [', '] ', ': ', '; ', ' ' ', ' ' ', ' < ', ' > ', ', ', '. ', '? ', '/', ' ' ', ' ',
', ', ', ' ' ', ' ' ', ' ~ ', '! ', ' ￥ ', ' ... ', '--', ', ', ' ', ' ', '. ',
Php_eol, CHR, Chr (+), "\ T", Chr (32),
);
**/
$arr 2 = Array (
'~',
'!',
'@',
'#',
'$',
'%',
'^',
' & ',
'*',
'_',
'+',
'|',
'-',
'=',
'\\',
'{',
'}',
'[',
']',
':',
';',
'"',
'\'',
' < ',
' > ',
',',
'.',
'?',
'/',
'“',
'”',
'’',
'‘',
'【',
'】',
'~',
'！ ',
' ￥ ',
'......',
'——',
'、',
'《',
'》',
'。 ',
Php_eol,
Chr (10),
CHR,//\r\n
"\ T",
Chr (32),
);


foreach ($arr 2 as $k) {
I used Preg_match results have garbled, all messed up. Later with Strpos (default7#zbphp.com)
if (Strpos ($uname, $k)!== false) {
$tips = "The registration name cannot contain special characters such as spaces, dots, commas, etc." ";

return Array (false, $tips);
}
}

Return Array (True, ' OK ');
}

------Solution--------------------

if ($s = = Str_replace ($arr 2, ", $s)) {
  Does not contain special characters
}else{
Contains special characters
}

