php - 没有从 $youtube_array 取回数组，而是给出 object(stdClass)#1

Question

我正在尝试请求一个 youtube 数组，但 var 转储显示了一个以 object(stdClass)#1 开头的转储

<?php
$num = Rand(1,5);
switch ($num) {
case 1: header('Foo Fighters The Pretender'); $music= 'Foo Fighters The Pretender';
case 2: header('Arctic Monkeys Flourescent Adolescent'); $music= 'Arctic Monkeys Flourescent Adolescent';
case 3: header('The Strokes Under Cover of Darkness'); $music= 'under cover of darkness';
case 4: header('The White Stripes Seven Nation Army'); $music= 'the white stripes seven nation army';
case 5: header('Franz Ferdinand Michael'); $music= 'franz ferdinand michael';
}
$youtube_array = json_decode(file_get_contents("https://gdata.youtube.com/feeds/api/videos?alt=json&q=" . urlencode($music) , TRUE ));
var_dump($youtube_array);
echo "<h1>Your Song Is:</h1>";
echo $music;
echo "</p>";
echo "YouTube found this video about your Rock:";
echo "</p>";
$link = $youtube_array['feed']['entry'][0]['id']['$t'];
$link2 = substr($link, 42);
echo "<iframe width='960' height='720' src='http://www.youtube.com/embed/" . $link2 . "' frameborder='0' allowfullscreen></iframe>";
?>

Answer 1

您在这一行中放错了右括号：

$youtube_array = json_decode(file_get_contents("-" . urlencode($music) , TRUE ));

应该

$youtube_array = json_decode(file_get_contents("-" . urlencode($music)), TRUE );

Answer 2

json_decode有第二个参数 ([, bool $assoc = false ....)。如果将其保留为默认值，它将返回一个对象。如果它是真的，它会设置一个关联数组。

您的代码在 ' ' 中有 'true file_get_contents($filename [, bool $use_include_path...'