Sorting method containing Chinese in php array_PHP tutorial

PHP array Chinese sorting, file format generally uses utf8, direct sorting using asort will not work. If gbk and gb2312 are available. This has to do with coding. The coding of gbk and gb2312 itself is sorted by pinyin.

Copy code The code is as follows:

function utf8_array_asort(&$array) {
if(!isset($array ) || !is_array($array)) {
return false;
}
foreach($array as $k=>$v) {
$array[$k] = iconv( 'UTF-8', 'GB2312',$v);
}
asort($array);
foreach($array as $k=>$v) {
$array[ $k] = iconv('GB2312', 'UTF-8', $v);
}
return true;
}

Usage example:

Copy code The code is as follows:

$abc = array('a'=>'guess', 'b'=>'I', 'c'=>'Oh','d'=>'stick','e'=>'f','f'=>'Dad','z'=>'zhou') ;
utf8_array_asort($abc);
print_r($abc);

However, using this function, I found that some text will be wrong. It may be that the utf8 encoding does not recognize some characters, causing "illegal" Characters", it is understood that the GBK character set is relatively large, so change it to GBK, plus IGNORE ignores unknown characters, and change it to the following

Copy code The code is as follows:

private function utf8_array_asort(&$array) {
if(!isset($array) || !is_array($array)) {
return false;
}
foreach($array as $k=>$v) {
$array[$k] = iconv('UTF-8', 'GBK//IGNORE',$v);
}
asort($array);
foreach($array as $k=>$v) {
$array[$k] = iconv('GBK', 'UTF-8// IGNORE', $v);
}
return true;
}

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