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PHP - How to select value by key from large associative array
Hi everyone,
I have a large associative array I'm trying to process. I only need two values, but every time I attempt to pull a value by key, or use a foreach loop to iterate through the array I keep getting errors. I'm a bit new to PHP, so I think the issue is just my syntax. Can anyone help me create the correct syntax?
All I need are two values from the array below, the values for [title] and [video_url]. Any help is appreciated!
I have a large associative array I'm trying to process. I only need two values, but every time I attempt to pull a value by key, or use a foreach loop to iterate through the array I keep getting errors. I'm a bit new to PHP, so I think the issue is just my syntax. Can anyone help me create the correct syntax?
All I need are two values from the array below, the values for [title] and [video_url]. Any help is appreciated!
Array ( [114] => stdClass Object ( [vid] => 114 [uid] => 1 [title] => Test Video 1 [log] => [status] => 1 [comment] => 2 [promote] => 1 [sticky] => 0 [nid] => 114 [type] => video [language] => und [created] => 1341715638 [changed] => 1341715638 [tnid] => 0 [translate] => 0 [revision_timestamp] => 1341715638 [revision_uid] => 1 [field_video_url] => Array ( [und] => Array ( [0] => Array ( [video_url] => http://www.youtube.com/embed/TO0bIwwLVYI [thumbnail_path] => public://video_embed_field_thumbnails/youtube/TO0bIwwLVYI.jpg [video_data] => a:20:{s:5:"xmlns";s:27:"http://www.w3.org/2005/Atom";s:11:"xmlns$media";s:29:"http://search.yahoo.com/mrss/";s:8:"xmlns$gd";s:32:"http://schemas.google.com/g/2005";s:8:"xmlns$yt";s:37:"http://gdata.youtube.com/schemas/2007";s:7:"gd$etag";s:28:"W/"AkUCRX47eCp7I2A9WhVRF0U."";s:2:"id";s:38:"tag:youtube.com,2008:video:TO0bIwwLVYI";s:9:"published";s:24:"2012-03-26T18:55:42.000Z";s:7:"updated";s:24:"2012-03-26T18:57:44.000Z";s:8:"category";a:4:{i:0;a:2:{s:6:"scheme";s:37:"http://schemas.google.com/g/2005#kind";s:4:"term";s:43:"http://gdata.youtube.com/schemas/2007#video";}i:1;a:3:{s:6:"scheme";s:52:"http://gdata.youtube.com/schemas/2007/categories.cat";s:4:"term";s:9:"Nonprofit";s:5:"label";s:21:"Nonprofits & Activism";}i:2;a:2:{s:6:"scheme";s:50:"http://gdata.youtube.com/schemas/2007/keywords.cat";s:4:"term";s:8:"Passover";}i:3;a:2:{s:6:"scheme";s:50:"http://gdata.youtube.com/schemas/2007/keywords.cat";s:4:"term";s:4:"2012";}}s:5:"title";s:37:"Something to Contribute this Passover";s:7:"content";a:2:{s:4:"type";s:29:"application/x-shockwave-flash";s:3:"src";s:73:"http://www.youtube.com/v/TO0bIwwLVYI?version=3&f=videos&app=youtube_gdata";}s:4:"link";a:6:{i:0;a:3:{s:3:"rel";s:9:"alternate";s:4:"type";s:9:"text/html";s:4:"href";s:64:"http://www.youtube.com/watch?v=TO0bIwwLVYI&feature=youtube_gdata";}i:1;a:3:{s:3:"rel";s:53:"http://gdata.youtube.com/schemas/2007#video.responses";s:4:"type";s:20:"application/atom+xml";s:4:"href";s:67:"http://gdata.youtube.com/feeds/api/videos/TO0bIwwLVYI/responses?v=2";}i:2;a:3:{s:3:"rel";s:51:"http://gdata.youtube.com/schemas/2007#video.related";s:4:"type";s:20:"application/atom+xml";s:4:"href";s:65:"http://gdata.youtube.com/feeds/api/videos/TO0bIwwLVYI/related?v=2";}i:3;a:3:{s:3:"rel";s:44:"http://gdata.youtube.com/schemas/2007#mobile";s:4:"type";s:9:"text/html";s:4:"href";s:42:"http://m.youtube.com/details?v=TO0bIwwLVYI";}i:4;a:3:{s:3:"rel";s:46:"http://gdata.youtube.com/schemas/2007#uploader";s:4:"type";s:20:"application/atom+xml";s:4:"href";s:67:"http://gdata.youtube.com/feeds/api/users/oYqzUf3k0FaTRznc8RZD1g?v=2";}i:5;a:3:{s:3:"rel";s:4:"self";s:4:"type";s:20:"application/atom+xml";s:4:"href";s:57:"http://gdata.youtube.com/feeds/api/videos/TO0bIwwLVYI?v=2";}}s:6:"author";a:1:{i:0;a:3:{s:4:"name";s:15:"jewishinseattle";s:3:"uri";s:56:"http://gdata.youtube.com/feeds/api/users/jewishinseattle";s:9:"yt$userId";s:22:"oYqzUf3k0FaTRznc8RZD1g";}}s:16:"yt$accessControl";a:8:{i:0;a:2:{s:6:"action";s:7:"comment";s:10:"permission";s:7:"allowed";}i:1;a:2:{s:6:"action";s:11:"commentVote";s:10:"permission";s:7:"allowed";}i:2;a:2:{s:6:"action";s:12:"videoRespond";s:10:"permission";s:9:"moderated";}i:3;a:2:{s:6:"action";s:4:"rate";s:10:"permission";s:7:"allowed";}i:4;a:2:{s:6:"action";s:5:"embed";s:10:"permission";s:7:"allowed";}i:5;a:2:{s:6:"action";s:4:"list";s:10:"permission";s:7:"allowed";}i:6;a:2:{s:6:"action";s:8:"autoPlay";s:10:"permission";s:7:"allowed";}i:7;a:2:{s:6:"action";s:9:"syndicate";s:10:"permission";s:7:"allowed";}}s:11:"gd$comments";a:1:{s:11:"gd$feedLink";a:3:{s:3:"rel";s:46:"http://gdata.youtube.com/schemas/2007#comments";s:4:"href";s:66:"http://gdata.youtube.com/feeds/api/videos/TO0bIwwLVYI/comments?v=2";s:9:"countHint";i:0;}}s:5:"yt$hd";a:0:{}s:11:"media$group";a:14:{s:14:"media$category";a:1:{i:0;s:9:"Nonprofit";}s:13:"media$content";a:3:{i:0;a:7:{s:3:"url";s:73:"http://www.youtube.com/v/TO0bIwwLVYI?version=3&f=videos&app=youtube_gdata";s:4:"type";s:29:"application/x-shockwave-flash";s:6:"medium";s:5:"video";s:9:"isDefault";s:4:"true";s:10:"expression";s:4:"full";s:8:"duration";i:74;s:9:"yt$format";i:5;}i:1;a:6:{s:3:"url";s:95:"rtsp://v7.cache3.c.youtube.com/CiILENy73wIaGQmCVQsMIxvtTBMYDSANFEgGUgZ2aWRlb3MM/0/0/0/video.3gp";s:4:"type";s:10:"video/3gpp";s:6:"medium";s:5:"video";s:10:"expression";s:4:"full";s:8:"duration";i:74;s:9:"yt$format";i:1;}i:2;a:6:{s:3:"url";s:95:"rtsp://v1.cache4.c.youtube.com/CiILENy73wIaGQmCVQsMIxvtTBMYESARFEgGUgZ2aWRlb3MM/0/0/0/video.3gp";s:4:"type";s:10:"video/3gpp";s:6:"medium";s:5:"video";s:10:"expression";s:4:"full";s:8:"duration";i:74;s:9:"yt$format";i:6;}}s:12:"media$credit";a:1:{i:0;s:15:"jewishinseattle";}s:17:"media$description";s:248:"From early childhood education, to JCCs and summer camps, to senior homes and congregations. Wherever you find joy and caring and Jewish values, that's where you'll find the Jewish Federation. We all have something BIG to contribute this Passover.";s:14:"media$keywords";s:14:"Passover, 2012";s:13:"media$license";s:7:"youtube";s:12:"media$player";a:1:{s:3:"url";s:71:"http://www.youtube.com/watch?v=TO0bIwwLVYI&feature=youtube_gdata_player";}s:15:"media$thumbnail";a:6:{i:0;a:5:{s:3:"url";s:45:"http://i.ytimg.com/vi/TO0bIwwLVYI/default.jpg";s:6:"height";i:90;s:5:"width";i:120;s:4:"time";s:8:"00:00:37";s:7:"yt$name";s:7:"default";}i:1;a:4:{s:3:"url";s:47:"http://i.ytimg.com/vi/TO0bIwwLVYI/mqdefault.jpg";s:6:"height";i:180;s:5:"width";i:320;s:7:"yt$name";s:9:"mqdefault";}i:2;a:4:{s:3:"url";s:47:"http://i.ytimg.com/vi/TO0bIwwLVYI/hqdefault.jpg";s:6:"height";i:360;s:5:"width";i:480;s:7:"yt$name";s:9:"hqdefault";}i:3;a:5:{s:3:"url";s:39:"http://i.ytimg.com/vi/TO0bIwwLVYI/1.jpg";s:6:"height";i:90;s:5:"width";i:120;s:4:"time";s:12:"00:00:18.500";s:7:"yt$name";s:5:"start";}i:4;a:5:{s:3:"url";s:39:"http://i.ytimg.com/vi/TO0bIwwLVYI/2.jpg";s:6:"height";i:90;s:5:"width";i:120;s:4:"time";s:8:"00:00:37";s:7:"yt$name";s:6:"middle";}i:5;a:5:{s:3:"url";s:39:"http://i.ytimg.com/vi/TO0bIwwLVYI/3.jpg";s:6:"height";i:90;s:5:"width";i:120;s:4:"time";s:12:"00:00:55.500";s:7:"yt$name";s:3:"end";}}s:11:"media$title";s:37:"Something to Contribute this Passover";s:14:"yt$aspectRatio";s:10:"widescreen";s:11:"yt$duration";a:1:{s:7:"seconds";s:2:"74";}s:11:"yt$uploaded";s:24:"2012-03-26T18:55:42.000Z";s:13:"yt$uploaderId";s:22:"oYqzUf3k0FaTRznc8RZD1g";s:10:"yt$videoid";s:11:"TO0bIwwLVYI";}s:13:"yt$statistics";a:2:{s:13:"favoriteCount";s:1:"0";s:9:"viewCount";s:2:"10";}s:5:"terms";a:3:{i:0;s:9:"Nonprofit";i:1;s:8:"Passover";i:2;s:4:"2012";}s:7:"handler";s:7:"youtube";} [embed_code] => [description] => ) ) ) [rdf_mapping] => Array ( [rdftype] => Array ( [0] => sioc:Item [1] => foaf:Document ) [title] => Array ( [predicates] => Array ( [0] => dc:title ) ) [created] => Array ( [predicates] => Array ( [0] => dc:date [1] => dc:created ) [datatype] => xsd:dateTime [callback] => date_iso8601 ) [changed] => Array ( [predicates] => Array ( [0] => dc:modified ) [datatype] => xsd:dateTime [callback] => date_iso8601 ) [body] => Array ( [predicates] => Array ( [0] => content:encoded ) ) [uid] => Array ( [predicates] => Array ( [0] => sioc:has_creator ) [type] => rel ) [name] => Array ( [predicates] => Array ( [0] => foaf:name ) ) [comment_count] => Array ( [predicates] => Array ( [0] => sioc:num_replies ) [datatype] => xsd:integer ) [last_activity] => Array ( [predicates] => Array ( [0] => sioc:last_activity_date ) [datatype] => xsd:dateTime [callback] => date_iso8601 ) ) [cid] => 0 [last_comment_timestamp] => 1341715638 [last_comment_name] => [last_comment_uid] => 1 [comment_count] => 0 [name] => admin [picture] => 0 [data] => a:1:{s:7:"overlay";i:1;} ) )
PHPWeb Development
Last Comment
Ray Paseur
Please repost your code - instead of one horribly long line split it into many lines so we can read it without horizontal scrolling.
I can't decode that, it just gives me an error.
ASKER
Sure thing. I'm not sure exactly how to indent this properly but I did my best. That last value is just one giant string.
I think the problem is I don't know the proper syntax to target the nested array values.
Thanks for taking a look!
I think the problem is I don't know the proper syntax to target the nested array values.
Thanks for taking a look!
Array (
[114] => stdClass Object (
[vid] => 114
[uid] => 1
[title] => Test Video 1
[log] =>
[status] => 1
[comment] => 2
[promote] => 1
[sticky] => 0
[nid] => 114
[type] => video
[language] => und
[created] => 1341715638
[changed] => 1341715638
[tnid] => 0
[translate] => 0
[revision_timestamp] => 1341715638
[revision_uid] => 1
[field_video_url] => Array (
[und] => Array (
[0] => Array (
[video_url] => http://www.youtube.com/embed/TO0bIwwLVYI
[thumbnail_path] => public://video_embed_field_thumbnails/youtube/TO0bIwwLVYI.jpg
[video_data] => a:20:{s:5:"xmlns";s:27:"http://www.w3.org/2005/Atom";s:11:"xmlns$media";s:29:"http://search.yahoo.com/mrss/";s:8:"xmlns$gd";s:32:"http://schemas.google.com/g/2005";s:8:"xmlns$yt";s:37:"http://gdata.youtube.com/schemas/2007";s:7:"gd$etag";s:28:"W/"AkUCRX47eCp7I2A9WhVRF0U."";s:2:"id";s:38:"tag:youtube.com,2008:video:TO0bIwwLVYI";s:9:"published";s:24:"2012-03-26T18:55:42.000Z";s:7:"updated";s:24:"2012-03-26T18:57:44.000Z";s:8:"category";a:4:{i:0;a:2:{s:6:"scheme";s:37:"http://schemas.google.com/g/2005#kind";s:4:"term";s:43:"http://gdata.youtube.com/schemas/2007#video";}i:1;a:3:{s:6:"scheme";s:52:"http://gdata.youtube.com/schemas/2007/categories.cat";s:4:"term";s:9:"Nonprofit";s:5:"label";s:21:"Nonprofits & Activism";}i:2;a:2:{s:6:"scheme";s:50:"http://gdata.youtube.com/schemas/2007/keywords.cat";s:4:"term";s:8:"Passover";}i:3;a:2:{s:6:"scheme";s:50:"http://gdata.youtube.com/schemas/2007/keywords.cat";s:4:"term";s:4:"2012";}}s:5:"title";s:37:"Something to Contribute this Passover";s:7:"content";a:2:{s:4:"type";s:29:"application/x-shockwave-flash";s:3:"src";s:73:"http://www.youtube.com/v/TO0bIwwLVYI?version=3&f=videos&app=youtube_gdata";}s:4:"link";a:6:{i:0;a:3:{s:3:"rel";s:9:"alternate";s:4:"type";s:9:"text/html";s:4:"href";s:64:"http://www.youtube.com/watch?v=TO0bIwwLVYI&feature=youtube_gdata";}i:1;a:3:{s:3:"rel";s:53:"http://gdata.youtube.com/schemas/2007#video.responses";s:4:"type";s:20:"application/atom+xml";s:4:"href";s:67:"http://gdata.youtube.com/feeds/api/videos/TO0bIwwLVYI/responses?v=2";}i:2;a:3:{s:3:"rel";s:51:"http://gdata.youtube.com/schemas/2007#video.related";s:4:"type";s:20:"application/atom+xml";s:4:"href";s:65:"http://gdata.youtube.com/feeds/api/videos/TO0bIwwLVYI/related?v=2";}i:3;a:3:{s:3:"rel";s:44:"http://gdata.youtube.com/schemas/2007#mobile";s:4:"type";s:9:"text/html";s:4:"href";s:42:"http://m.youtube.com/details?v=TO0bIwwLVYI";}i:4;a:3:{s:3:"rel";s:46:"http://gdata.youtube.com/schemas/2007#uploader";s:4:"type";s:20:"application/atom+xml";s:4:"href";s:67:"http://gdata.youtube.com/feeds/api/users/oYqzUf3k0FaTRznc8RZD1g?v=2";}i:5;a:3:{s:3:"rel";s:4:"self";s:4:"type";s:20:"application/atom+xml";s:4:"href";s:57:"http://gdata.youtube.com/feeds/api/videos/TO0bIwwLVYI?v=2";}}s:6:"author";a:1:{i:0;a:3:{s:4:"name";s:15:"jewishinseattle";s:3:"uri";s:56:"http://gdata.youtube.com/feeds/api/users/jewishinseattle";s:9:"yt$userId";s:22:"oYqzUf3k0FaTRznc8RZD1g";}}s:16:"yt$accessControl";a:8:{i:0;a:2:{s:6:"action";s:7:"comment";s:10:"permission";s:7:"allowed";}i:1;a:2:{s:6:"action";s:11:"commentVote";s:10:"permission";s:7:"allowed";}i:2;a:2:{s:6:"action";s:12:"videoRespond";s:10:"permission";s:9:"moderated";}i:3;a:2:{s:6:"action";s:4:"rate";s:10:"permission";s:7:"allowed";}i:4;a:2:{s:6:"action";s:5:"embed";s:10:"permission";s:7:"allowed";}i:5;a:2:{s:6:"action";s:4:"list";s:10:"permission";s:7:"allowed";}i:6;a:2:{s:6:"action";s:8:"autoPlay";s:10:"permission";s:7:"allowed";}i:7;a:2:{s:6:"action";s:9:"syndicate";s:10:"permission";s:7:"allowed";}}s:11:"gd$comments";a:1:{s:11:"gd$feedLink";a:3:{s:3:"rel";s:46:"http://gdata.youtube.com/schemas/2007#comments";s:4:"href";s:66:"http://gdata.youtube.com/feeds/api/videos/TO0bIwwLVYI/comments?v=2";s:9:"countHint";i:0;}}s:5:"yt$hd";a:0:{}s:11:"media$group";a:14:{s:14:"media$category";a:1:{i:0;s:9:"Nonprofit";}s:13:"media$content";a:3:{i:0;a:7:{s:3:"url";s:73:"http://www.youtube.com/v/TO0bIwwLVYI?version=3&f=videos&app=youtube_gdata";s:4:"type";s:29:"application/x-shockwave-flash";s:6:"medium";s:5:"video";s:9:"isDefault";s:4:"true";s:10:"expression";s:4:"full";s:8:"duration";i:74;s:9:"yt$format";i:5;}i:1;a:6:{s:3:"url";s:95:"rtsp://v7.cache3.c.youtube.com/CiILENy73wIaGQmCVQsMIxvtTBMYDSANFEgGUgZ2aWRlb3MM/0/0/0/video.3gp";s:4:"type";s:10:"video/3gpp";s:6:"medium";s:5:"video";s:10:"expression";s:4:"full";s:8:"duration";i:74;s:9:"yt$format";i:1;}i:2;a:6:{s:3:"url";s:95:"rtsp://v1.cache4.c.youtube.com/CiILENy73wIaGQmCVQsMIxvtTBMYESARFEgGUgZ2aWRlb3MM/0/0/0/video.3gp";s:4:"type";s:10:"video/3gpp";s:6:"medium";s:5:"video";s:10:"expression";s:4:"full";s:8:"duration";i:74;s:9:"yt$format";i:6;}}s:12:"media$credit";a:1:{i:0;s:15:"jewishinseattle";}s:17:"media$description";s:248:"From early childhood education, to JCCs and summer camps, to senior homes and congregations. Wherever you find joy and caring and Jewish values, that's where you'll find the Jewish Federation. We all have something BIG to contribute this Passover.";s:14:"media$keywords";s:14:"Passover, 2012";s:13:"media$license";s:7:"youtube";s:12:"media$player";a:1:{s:3:"url";s:71:"http://www.youtube.com/watch?v=TO0bIwwLVYI&feature=youtube_gdata_player";}s:15:"media$thumbnail";a:6:{i:0;a:5:{s:3:"url";s:45:"http://i.ytimg.com/vi/TO0bIwwLVYI/default.jpg";s:6:"height";i:90;s:5:"width";i:120;s:4:"time";s:8:"00:00:37";s:7:"yt$name";s:7:"default";}i:1;a:4:{s:3:"url";s:47:"http://i.ytimg.com/vi/TO0bIwwLVYI/mqdefault.jpg";s:6:"height";i:180;s:5:"width";i:320;s:7:"yt$name";s:9:"mqdefault";}i:2;a:4:{s:3:"url";s:47:"http://i.ytimg.com/vi/TO0bIwwLVYI/hqdefault.jpg";s:6:"height";i:360;s:5:"width";i:480;s:7:"yt$name";s:9:"hqdefault";}i:3;a:5:{s:3:"url";s:39:"http://i.ytimg.com/vi/TO0bIwwLVYI/1.jpg";s:6:"height";i:90;s:5:"width";i:120;s:4:"time";s:12:"00:00:18.500";s:7:"yt$name";s:5:"start";}i:4;a:5:{s:3:"url";s:39:"http://i.ytimg.com/vi/TO0bIwwLVYI/2.jpg";s:6:"height";i:90;s:5:"width";i:120;s:4:"time";s:8:"00:00:37";s:7:"yt$name";s:6:"middle";}i:5;a:5:{s:3:"url";s:39:"http://i.ytimg.com/vi/TO0bIwwLVYI/3.jpg";s:6:"height";i:90;s:5:"width";i:120;s:4:"time";s:12:"00:00:55.500";s:7:"yt$name";s:3:"end";}}s:11:"media$title";s:37:"Something to Contribute this Passover";s:14:"yt$aspectRatio";s:10:"widescreen";s:11:"yt$duration";a:1:{s:7:"seconds";s:2:"74";}s:11:"yt$uploaded";s:24:"2012-03-26T18:55:42.000Z";s:13:"yt$uploaderId";s:22:"oYqzUf3k0FaTRznc8RZD1g";s:10:"yt$videoid";s:11:"TO0bIwwLVYI";}s:13:"yt$statistics";a:2:{s:13:"favoriteCount";s:1:"0";s:9:"viewCount";s:2:"10";}s:5:"terms";a:3:{i:0;s:9:"Nonprofit";i:1;s:8:"Passover";i:2;s:4:"2012";}s:7:"handler";s:7:"youtube";}
[embed_code] => [description] => ) ) )
It looks like what you have here is an array of objects with some sub-arrays and some serialized or json-encoded data fields. Instead of posting the PHP print_r() output can you please post a URL that will enable us to read the original data? If you can do that, I will be glad to show you the code to use array and OOP notation to access the data elements you want. I would rather have the test data so I do not waste your time with an untested solution. (Hint: It's not a beginner problem in PHP!)
Thanks, ~Ray
Thanks, ~Ray
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Don't arrays requires commas between values? And quotes on the string values?
Like this-
.....
vid] => 114,
[uid] => 1,
[title] => 'Test Video 1',
[log] =>
[status] => 1,
[comment] => 2,
[promote] => 1,
etc etc
[log] => doesn't have a value.
Like this-
.....
vid] => 114,
[uid] => 1,
[title] => 'Test Video 1',
[log] =>
[status] => 1,
[comment] => 2,
[promote] => 1,
etc etc
[log] => doesn't have a value.
no
@nanharbison: I think we are looking at the output of print_r(), not the actual data. That is why I asked for the input -- so we can use the right functions to disclose the true data structure and show the ways to parse the data.
sorry nanharbison you are correct when setting the values of the array, im just confused of the question here. I need more info, can you paste your code plzz
Yes, this works, that print_r() output doesn't work for creating an array.
<?php
$testarr = Array ("vid" => 114,
"uid" => 1,
"title" => 'Test Video 1',
"log" => '',
"status" => 1,
"comment" => 2,
"promote" => 1);
print_r ($testarr);
?>
Spiderstave - here is how to print out an array with one item per line:
echo "array: <pre>"; print_r($your_array); echo '</pre>';
echo "array: <pre>"; print_r($your_array); echo '</pre>';
Personally, I am kind of a fan of var_dump() more than print_r() for most debugging things. But each one has its best uses. It would be nice if PHP had a mirror function that would read the output of var_dump() or print_r() and recreate the original array(s) or object(s) or similar data structure(s)!
Standing by to hear from @Spiderstave with a link to the input so we can create the arrays and objects, and show how to process them.
Best to all, ~Ray
Standing by to hear from @Spiderstave with a link to the input so we can create the arrays and objects, and show how to process them.
Best to all, ~Ray