PHP determines if string encoding is UTF8 and conversion issues

Today talk about coding garbled problem, when a page exists two kinds of code, no matter how you choose the first choice will appear garbled, the solution:

1. What you are coding on the Web page.

2. First determine if the string encoding is UTF8 code as follows:

PHP code

function Is_utf8 ($word)

{

if (Preg_match ("/^ ([". chr (228). " -". Chr (233)." {1} [". chr (128)." -". Chr (191)." {1} [". chr (128)." -". Chr (191)." {1}) {1}/", $word) = = True | | Preg_match ("/[". chr (228). " -". Chr (233)." {1} [". chr (128)." -". Chr (191)." {1} [". chr (128)." -". Chr (191)." {1}) {1}$/", $word) = = True | | Preg_match ("/[". chr (228). " -". Chr (233)." {1} [". chr (128)." -". Chr (191)." {1} [". chr (128)." -". Chr (191)." {1}) {2,}/", $word) = = True)

{

return true;

}

Else

{

return false;

}

}

3. Convert to gb2312, use the conversion function iconv;

PHP code

if (Is_utf8 ($tit) ==1)

$tit = Iconv ("Utf-8", "GBK", $tit);

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PHP determines if string encoding is UTF8 and conversion issues