Troubleshooting of invalid Chinese sorting using asort in PHP

The asort () function sorts arrays and maintains the index relationship. It is mainly used to sort the arrays that are very important to the unit order. The second optional parameter contains an additional sorting identifier. If the call succeeds, TRUE is returned. otherwise, FALSE is returned. PHP has a very convenient method for re-sorting arrays-asort. For more information about how to use asort, see here. However, when asort sorts arrays containing Chinese keys, it sometimes does not follow the alphabetic order. This is mainly the encoding problem, if the encoding is UTF-8, it will not be arranged in alphabetical order, the solution is to first convert to GBK encoding, sorting and then back to the UTF-8.

Example: there is an array $ pass with a structure similar

Array ([0] => stdClass Object ([username] => John [password] => DQ9uqQW2 + udoszpqmnyvgg9l + example + LrSslRx9eSqU/nw.slsua =) [1] => stdClass Object ([username] => Li Si [password] => 2 P/3j50ibk1BYmjHL + 7/tests/Xdv/7Bu4pJAQ =) [2] => stdClass Object ([username] => Wang Wu [password] => caq8lq0l6uxJPRx + sCBsBFUojSF + ox98gwO6c/AquXQ/y/aj/l/ziegsxclr + signature =) [3] => stdClass Object ([username] => Zhao Liu [password] => Ghost/RyMxzJGQ = ))

The following code sorts the array by username in pinyin.

foreach ($pass as $key) { $key->username = iconv('UTF-8', 'GBK', $key->username);}asort( $pass );foreach ($pass as $key) { $key->username = iconv('GBK', 'UTF-8', $key->username);}