php有一数组$a=arry(20,34,12,54,64,43,7);请按由小到大的次序次序重新...答:用sort排序就行:<?php a = array(20,34,12,54,64,43,7);sort($a);print_r($a);请采纳,谢谢!
php怎样把一个数组放入另一个数组的子数组里面答:arr1 = Array (Array ('a' => 1,'b' => 2,),Array ('a' => 's','b' => 's',),);arr2 = Array (Array ('c'=>array('a','b','c'),),Array ('c'=>array(1,2,3),),);foreach($arr2 as $key=>$value) { foreach($value as $k=>$v) { arr1[$key][...