Array
(
[0] => Array
(
[sno] => 1
[name] => Sivamani
[contact] => 750241378
[$city] => Madurai
)
)
Array
(
[1] => Array
(
[sno] => 2
[name] => Guru
[contact] => 1111111111
[$city] => Chennai
)
)
这是我的 php print_r 数组我怎样才能获得数组长度并循环这些以在 javascript 中打印