PHP循环遍历数组并找到最大值
嘿,我想看看这个数组中的最高票数是多少,然后从中获取文件路径PHP循环遍历数组并找到最大值,php,arrays,Php,Arrays,嘿,我想看看这个数组中的最高票数是多少,然后从中获取文件路径 images => backdrops => 0 => file_path => /gM3KKiN80qbJgKHjPnmAfwxSicG.jpg width => 1920 height => 1080 iso_639_1 => aspect_ratio => 1.78 vote_average =&g
images =>
backdrops =>
0 =>
file_path => /gM3KKiN80qbJgKHjPnmAfwxSicG.jpg
width => 1920
height => 1080
iso_639_1 =>
aspect_ratio => 1.78
vote_average => 5.4529616724739
vote_count => 19
1 =>
file_path => /7u3pxc0K1wx32IleAkLv78MKgrw.jpg
width => 1920
height => 1080
iso_639_1 =>
aspect_ratio => 1.78
vote_average => 5.4509803921569
vote_count => 22
2 =>
etc etc....
我尝试过这样做,但无法获取任何数据:
foreach($theMovieData['images']['backdrops'][0]['vote_count'] as $key => $item) {
echo $item;
}
我会怎么做?在找到最高投票数后,我如何获得文件路径
谢谢你的帮助 您需要迭代
背景
,而不是votecount
。还可以使用临时变量来存储和比较以前的值
$temp = -1;
foreach($theMovieData['images']['backdrops'] as $key => $item) {
if ($item["vote_count"] > $temp)
$temp = $item["vote_count"];
}
foreach循环意味着在数组中循环,您试图在发布的代码示例中实现的是单个变量中的循环。您应该将代码更改为以下内容:
$max = 0;
$pathMax = null;
foreach ($theMovieData['images']['backdrops'] as $data){
$voteCount = $data['vote_count'];
$path = $data['file_path'];
if ((int)$voteCount > $max){
$max = (int)$voteCount;
$pathMax = $path;
}
}
在
$theMovieData['images']['backdrops']
上执行foreach操作。您尝试在该数组中的整数上循环,而不是在数组元素上循环。