Solve the problem of generating Chinese character encoding for xml files using php array

In php array to xml, we learned to write this in php.

The code is as follows:	Copy code
Function array2xml ($ array, $ xml = false ){ If ($ xml = false ){ $ Xml = new SimpleXMLElement ('<root/> ');     } Foreach ($ array as $ key => $ value ){ If (is_array ($ value )){ Array2xml ($ value, $ xml-> addChild ($ key )); } Else { $ Xml-> addChild ($ key, $ value );         }     } Return $ xml-> asXML (); }   Header ('content-type: text/XML '); Print array2xml ($ array );

If the content contains Chinese characters, it is null.

Solution: Transcoding

The code is as follows:

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Function array2xml ($ array, $ xml = false ){ If ($ xml = false ){ $ Xml = new SimpleXMLElement ('<root/> ');     } Foreach ($ array as $ key => $ value ){ If (is_array ($ value )){ Array2xml ($ value, $ xml-> addChild ($ key )); } Else {             // $ Value = utf8_encode ($ value );   If (preg_match ("/([x81-xfe] [x40-xfe])/", $ value, $ match )){ $ Value = iconv ('gbk', 'utf-8', $ value ); // Determine whether there are any Chinese characters             } $ Xml-> addChild ($ key, $ value );         }     } Return $ xml-> asXML (); }

Here are some examples of Chinese character regular expressions.

1. Determine whether the string is full of Chinese characters

The code is as follows:	Copy code
<? Php $ Str = 'All are Chinese character test '; If (Preg_match_all ("/^ ([x81-xfe] [x40-xfe]) + $/", $ str, $ match)){ Echo 'all Chinese characters '; } Else { Echo 'all Chinese characters ';     } ?>

When $ str = 'All are Chinese character test', the output "all are Chinese characters ";
When $ str = 'All is a Chinese character test', the output is "not all Chinese characters ";