dongyuqi3808 2017-06-09 17:09
浏览 44
已采纳

如何在不使用全局变量的情况下更改函数中的变量值

I am using a pre-existing Laravel function from a class. I want to pass an array into it and get the updated values when the function has complete. Is there a way to do this without using global variables? Currently $counts is not updating outside of this function.

    $counts = array(
        'newly_added_count' => 0,
        'updated_count' => 0,
    );

    Excel::load( 'storage/exports/test.xls', function ( $reader ) use($counts) {
        $counts['newly_added_count'] = 100;
        $counts['updated_count'] =100;
    } );
  • 写回答

1条回答 默认 最新

  • douzhao9608 2017-06-09 17:13
    关注

    You can use variable by reference, just pass it to use with &:

    Excel::load( 'storage/exports/test.xls', function ( $reader ) use(&$counts) {
        $counts['newly_added_count'] = 100;
        $counts['updated_count'] =100;
    } );
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

报告相同问题?