php ckey=6,6-6-1-php数组相关（2）
1.for比较少用遍历连续数字下标的数组，和c语言差不多，简单记录一下：for(int $i=0;$i2.php有专门遍历数组而设计的foreach语句foreach( $arr as $value ){}foreach( $arr as $key=>$value){}多维：使用嵌套foreach ( $arr as $key => $arr1 ){foreach($arr1 as $...
