<?php
    $aList = array();
    $aList[1][1] = array('test1');
    $aList[1][2] = array('test2');
    $aList[2][1] = array('test3');
    $aList[2][2] = array('test4');

    //转化为如下

    
    $list = array();
    $list[] = array('test1');
    $list[] = array('test2');
    $list[] = array('test3');
    $list[] = array('test4');
    大概就是这样的
    $list = array( array('test'1'), array('test'2'), array('test'3'), array('test'4'))

$aList = array();
$aList[1][1] = array('test1');
$aList[1][2] = array('test2');
$aList[2][1] = array('test3');
$aList[2][2] = array('test4');

$r = call_user_func_array('array_merge', $aList);

print_r($r);