* 将字符串分离成单个字符数组 | 传入参 | 参数标识 | | 说明 | | --- | --- | --- |--- | | str | 0 | 必填 | 字符串 | | 回调参 | 说明 | | --- | --- | | \[ arr \] | 字符数组 | * 案例 ~~~ $obj = $T_C->sbh_split('中文123abc'); ~~~ > \["\\u4e2d","\\u6587","1","2","3","a","b","c"\]