<?php
$string = file_get_contents("http://www.reddit.com/r/news.json");
$array = json_decode($string, true);
echo $array['data'][0]['children'][0]['data'][0]['title'][0];
?>
我有一个问题 - 代码没有回显任何内容。
我对 json_decode 有点陌生，所以任何帮助表示赞赏:-)
编辑：作为对评论的回应，这是 print_r 结果：
Array
(
[kind] => Listing
[data] => Array
(
[modhash] =>
[children] => Array
(
[0] => Array
(
[kind] => t3
[data] => Array
(
[domain] => syracuse.com
[banned_by] =>
[media_embed] => Array
(
)
[subreddit] => news
[selftext_html] =>
[selftext] =>
[likes] =>
[secure_media] =>
[link_flair_text] =>
[id] => 1qdtqr
[secure_media_embed] => Array
(
)
[clicked] =>
[stickied] =>
[author] => cadencehz
[media] =>
[score] => 1552
[approved_by] =>
[over_18] =>
[hidden] =>
[thumbnail] =>
[subreddit_id] => t5_2qh3l
[edited] =>
[link_flair_css_class] =>
[author_flair_css_class] =>
[downs] => 978
[saved] =>
[is_self] =>
[permalink] => /r/news/comments/1qdtqr/thousands_defend_grocery_store_employee_with/
[name] => t3_1qdtqr
[created] => 1384215998
[url] => http://www.syracuse.com/news/index.ssf/2013/11/thousands_come_to_defense_of_clay_wegmans_employee_with_aspergers_syndrome_after.html#incart_m-rpt-2
[author_flair_text] =>
[title] => Thousands defend grocery store employee with Asperger's syndrome after customer yells at him for being too slow
[created_utc] => 1384187198
[ups] => 2530
[num_comments] => 401
[visited] =>
[num_reports] =>
[distinguished] =>
)
)
[1] => Array
(
[kind] => t3
[data] => Array
(
[domain] => bostonherald.com
[banned_by] =>
[media_embed] => Array
(
)
[subreddit] => news
[selftext_html] =>
[selftext] =>
[likes] =>
[secure_media] =>
[link_flair_text] =>
[id] => 1qddl6
[secure_media_embed] => Array
(
)
[clicked] =>
[stickied] =>
[author] => boxofrain
[media] =>
[score] => 2086
[approved_by] =>
[over_18] =>
[hidden] =>
[thumbnail] =>
[subreddit_id] => t5_2qh3l
[edited] =>
[link_flair_css_class] =>
[author_flair_css_class] =>
[downs] => 2556
[saved] =>
[is_self] =>
[permalink] => /r/news/comments/1qddl6/motorcycle_stolen_in_1961_found_is_recovered_and/
[name] => t3_1qddl6
[created] => 1384199801
[url] => http://bostonherald.com/news_opinion/offbeat_news/2013/11/man_glad_stolen_motorcycle_found_after_46_years
[author_flair_text] =>
[title] => Motorcycle stolen in 1961 found is recovered and will be returned to it 73 year old owner.
[created_utc] => 1384171001
[ups] => 4642
[num_comments] => 141
[visited] =>
[num_reports] =>
[distinguished] =>
)
)
[2] => Array
(
[kind] => t3
[data] => Array
(
[domain] => hosted.ap.org
[banned_by] =>
[media_embed] => Array
(
)
[subreddit] => news
[selftext_html] =>
[selftext] =>
[likes] =>
[secure_media] =>
[link_flair_text] =>
[id] => 1qe6gp
[secure_media_embed] => Array
(
)
[clicked] =>
[stickied] =>
[author] => donkey-kick
[media] =>
[score] => 415
[approved_by] =>
[over_18] =>
[hidden] =>
[thumbnail] =>
[subreddit_id] => t5_2qh3l
[edited] =>
[link_flair_css_class] =>
[author_flair_css_class] =>
[downs] => 334
[saved] =>
[is_self] =>
[permalink] => /r/news/comments/1qe6gp/atheist_mega_churches_take_hold_in_the_us_and/
[name] => t3_1qe6gp
[created] => 1384224670
[url] => http://hosted.ap.org/dynamic/stories/U/US_ATHEIST_MEGACHURCH?SITE=AP&SECTION=HOME&TEMPLATE=DEFAULT&CTIME=2013-11-10-17-03-15
[author_flair_text] =>
[title] => Atheist Mega Churches take hold in the US and around the world.
[created_utc] => 1384195870
[ups] => 749
[num_comments] => 368
[visited] =>
[num_reports] =>
[distinguished] =>
)
)
[3] => Array
(
[kind] => t3
[data] => Array
(
[domain] => abcnews.go.com
[banned_by] =>
[media_embed] => Array
(
)
[subreddit] => news
[selftext_html] =>
[selftext] =>
[likes] =>
[secure_media] =>
[link_flair_text] =>
[id] => 1qdie4
[secure_media_embed] => Array
(
)
[clicked] =>
[stickied] =>
[author] => Hoosier_made
[media] =>
[score] => 984
[approved_by] =>
[over_18] =>
[hidden] =>
[thumbnail] =>
[subreddit_id] => t5_2qh3l
[edited] =>
[link_flair_css_class] =>
[author_flair_css_class] =>
[downs] => 400
[saved] =>
[is_self] =>
[permalink] => /r/news/comments/1qdie4/abc_news_amy_robach_has_mammogram_live_on_gma/
[name] => t3_1qdie4
[created] => 1384206209
[url] => http://abcnews.go.com/blogs/health/2013/11/11/abc-news-amy-robach-reveals-breast-cancer-diagnosis/
[author_flair_text] =>
[title] => ABC News’ Amy Robach has mammogram live on GMA. Results Reveal Breast Cancer Diagnosis.
[created_utc] => 1384177409
[ups] => 1384
[num_comments] => 130
[visited] =>
[num_reports] =>
[distinguished] =>
)
)
// ECT... I CUT HERE BECAUSE IT WENT ON FOR A WHILE
[after] => t3_1qdinr
[before] =>
)
)
这是确切输出的 url，我不得不修剪代码以适应字符限制，所以也许我搞砸了！:P
好的：链接到这里...