Uninitialized string offset: -1

[qinzhe]

PHP Notice: Uninitialized string offset: -1 in /home/server/gochat/geohash.class.php on line 110
PHP Warning: strpos(): Empty needle in /home/server/gochat/geohash.class.php on line 114
PHP Warning: strpos(): Empty needle in /home/server/gochat/geohash.class.php on line 119
PHP Notice: String offset cast occurred in /home/server/gochat/geohash.class.php on line 119

[Hkesd]

这个问题解决了吗？

[seebyyu]

1. line 27
   public function Geohash()
   public function __construct()
2. line 110
   if (strpos($this->borders[$dir][$type], $lastChr) !== false)
   if (strpos($this->borders[$dir][$type], $lastChr) !== false && !empty($base))

• 我当前php版本为 7.2

[xuekang]

参数顺序可能有问题，注意调用encode经纬度传参顺序

[xuekang]

sql优化建议：SELECT * FROM address WHERE LEFT(geohash,5) IN ('wm6n0','wm6j8','wm6jc','wm3vz','wm3yp','wm6n1','wm6j9','wm3vx','wm6jb')