>我正在尝试打印这个数组的一部分，基本上所有带有"ProviderRedirect.ashx"的URL[href]基本上[0]到[无限]
Array
(
[name] => HC Redirect
[count] => 66
[frequency] => Daily
[version] => 14
[newdata] => 1
[lastrunstatus] => partial
[thisversionstatus] => success
[nextrun] => Sun Jan 17 2016 14:03:08 GMT+0000 (UTC)
[thisversionrun] => Sat Jan 16 2016 14:03:08 GMT+0000 (UTC)
[results] => Array
(
[collection1] => Array
(
[0] => Array
(
[Hotel Search] => Array
(
[href] => https://www.domain.com/ProviderRedirect.ashx?key=0.6359329.272723160.5179.GBP.1729297590&saving=410&source=32-0
[text] => View Deal
)
[index] => 1
[url] => https://www.domain.com/Hotels/Search?destination=place:London&checkin=2016-09-02&checkout=2016-09-09&Rooms=1&adults_1=2&languageCode=EN¤cyCode=GBP&pageSize=50
)
[1] => Array
(
[Hotel Search] => Array
(
[href] => https://www.domain.com/ProviderRedirect.ashx?key=0.21199849.272723130.457.GBP.753573779&source=32-0
[text] => View Deal
)
[index] => 2
[url] => https://www.domain.com/Hotels/Search?destination=place:London&checkin=2016-09-02&checkout=2016-09-09&Rooms=1&adults_1=2&languageCode=EN¤cyCode=GBP&pageSize=50
)
[2] => Array
(
[Hotel Search] => Array
(
[href] => https://www.domain.com/ProviderRedirect.ashx?key=0.23906211.272723157.1326.GBP.2008823249&source=32-0
[text] => View Deal
)
[index] => 3
[url] => https://www.domain.com/Hotels/Search?destination=place:London&checkin=2016-09-02&checkout=2016-09-09&Rooms=1&adults_1=2&languageCode=EN¤cyCode=GBP&pageSize=50
)
[3] => Array
(
[Hotel Search] => Array
(
[href] => https://www.domain.com/ProviderRedirect.ashx?key=0.5242811.272723157.3854.GBP.1642352834&source=32-0
[text] => View Deal
)
[index] => 4
[url] => https://www.domain.com/Hotels/Search?destination=place:London&checkin=2016-09-02&checkout=2016-09-09&Rooms=1&adults_1=2&languageCode=EN¤cyCode=GBP&pageSize=50
)
[4] => Array
(
[Hotel Search] => Array
(
[href] => https://www.domain.com/ProviderRedirect.ashx?key=0.675524.272723160.1457.GBP.2121712597&saving=18&source=32-0
[text] => View Deal
)
[index] => 5
[url] => https://www.domain.com/Hotels/Search?destination=place:London&checkin=2016-09-02&checkout=2016-09-09&Rooms=1&adults_1=2&languageCode=EN¤cyCode=GBP&pageSize=50
)
[5] => Array
(
[Hotel Search] => Array
(
[href] => https://www.domain.com/ProviderRedirect.ashx?key=0.5743724.272723155.847.GBP.1001086600&source=32-0
[text] => View Deal
)
[index] => 6
[url] => https://www.domain.com/Hotels/Search?destination=place:London&checkin=2016-09-02&checkout=2016-09-09&Rooms=1&adults_1=2&languageCode=EN¤cyCode=GBP&pageSize=50
)
[6] => Array
要么使用array_walk_recursive()函数，要么编写自己的函数来递归遍历数组并打印所有 URL。
假设$arr是你的数组。
方法（1）：
array_walk_recursive($arr, function($item, $key) {
if ($key == "href") {
echo $item . "<br />";
}
});
方法（2）：
function process_array($array){
foreach($array as $key => $value){
if(is_array($value)){
process_array($value);
}else{
if($key == "href"){
echo $value . "<br />";
}
}
}
}
process_array($arr);
$items = array(
'results' => array(
'collection1'=> array(
array(
'hotel_search'=>array(
'href'=>'value'
),
'index'=>'value'
),
array(
'hotel_search'=>array(
'href'=>'value'
),
'index'=>'value'
)
)
)
);
$collection1 = $items['results']['collection1'];
foreach($collection1 as $collection) {
printf("%s", $collection['hotel_search']['href']);
}
不过，您需要遍历结果数组以避免硬编码
如果您需要做的就是打印值，array_walk_recursive可以完成这项工作：
array_walk_recursive($array, function($item, $key) {
if ('href' === $key) {
echo "$item'n";
}
});