按照表中字段的拼音首字母取出数据库数据

SELECT * FROM district WHERE 1 ORDER BY CONVERT( `name` USING gbk )  可以实现按照拼音首字母排序

SELECT `name`,ELT(INTERVAL(CONV(HEX(LEFT(CONVERT(`name` USING gbk),1)),16,10),
0xB0A1,0xB0C5,0xB2C1,0xB4EE,0xB6EA,0xB7A2,0xB8C1,0xB9FE,0xBBF7,0xBFA6,0xC0AC,
0xC2E8,0xC4C3,0xC5B6,0xC5BE,0xC6DA,0xC8BB,0xC8F6,0xCBFA,0xCDDA ,0xCEF4,0xD1B9,0xD4D1),
'a','b','c','d','e','f','g','h','j','k','l','m','n','o','p','q','r','s','t','w','x','y','z') szm
FROM district WHERE 1 ORDER BY CONVERT( `name` USING gbk )

则会实现

之后利用利用foreach解决一下就ok了

$info = [];
foreach ($data as &$v){
    $info[$v['yzm']][] = $v;
}