【简答题】假设有文件test.txt,内容如下:1, linux idc, Title 639, Price $9.302, linuxidc ninhao, Title 761, Price $5.903, linuxmi nihao, Title 880, Price $9.304, linuxmi com, Title 198, Price $1.305, Johnny Cash, Title 582...
【单选题】$arr=[["id"=>1,"title"="title1"],["id"=>2,"title"="title2"]]只输出title中的值的遍历语句是( )
A.
foreach($arr as $v) echo $v;
B.
foreach($arr as $v) echo $v[0];
C.
foreach($arr as $v) echo $v[1];
D.
foreach($arr as $v) echo $v["title"];