<?php

    $result = Array(0 => Array(0 => Array(bid => 41,brealname => 'we教官',cid => 41,crealname => 'we教官')),

                    1 => Array(0 => Array(bid => 6,brealname => '虎子',cid => 19,crealname => '张鱼'))

    );

    //原数组

    print_r($result);

    echo "<br />";

    //第一种方法：

    foreach ($result as $key =>$v){

        $new_arr[]=$v[0];

    }

    echo '<pre>';

    print_r($new_arr);

    //第二种方法

    //初始化$arr2

    $arr2=array();  

    //循环遍历三维数组$arr3

    foreach($result as $value){

        foreach($value as $v){

             $arr2[]=$v;

        }

    }

    //销毁$arr3

    unset($result,$value,$v);

    echo "<br /s>";

    echo "第二种方法：";

    echo '<pre>';

    print_r($arr2);

?>