[英]Looping through Array PHP
我正在嘗試循環cURL數組響應以生成XML文件。 但是,我生成的文件似乎都具有完全相同的內容 - 我不知道這是否是正確的方法,或者我是否應該使用數組,但我似乎無法弄明白並且可能會使用一些新鮮的眼睛。 基本上,我希望每個$playlist
的內容都在它自己的單獨文件中。
for ($i=0; $i<=14; $i++) {
$xml_data = generateXML($i);
$fileName = "bc_manifest_$i.xml";
$fileHandle = fopen($fileName, 'wb') or die("can't open file");
fwrite ($fileHandle, $xml_data);
fclose($fileHandle);
//echo $xml_data;
echo "Successfully created manifest $i<br />";
}
// The holy grail
function generateXML($i) {
$xml_code = array($i);
// Start the beginning of the xml doc and save it to our reoccuring xml_code var
$xml_code[$i] .= '<?xml version="1.0" encoding="UTF-8"?>' . "\n";
$xml_code[$i] .= '<publisher-upload-manifest publisher-id="xxxxxxx" preparer="Dave" report-success="TRUE">' . "\n";
// Set options to send to brightcove
// @page_size
$options = array(
'page_size' => '75',
'playlist_ids' => "3690598001,3684920001,8193433701",
'video_fields' => 'referenceId,creationDate'
);
// URL Encode the options to prepare for cURL send
$post_str = '';
foreach($options as $key=>$value) {
$post_str .= $key.'='.urlencode($value).'&';
}
$post_str = substr($post_str, 0, -1);
// Initiate cURL and send request
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://api.brightcove.com/services/library?command=find_playlists_by_ids&token=xxxxxxxxxx&' );
curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_str);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
$obj = curl_exec($ch);
curl_close($ch);
// Decode json response
$result = json_decode($obj);
// Get playlists from the items object
$playlists = $result->{'items'};
//var_dump($playlists);
// For each playlist...
foreach ($playlists as $playlist){
foreach ($playlist->{'videos'} as $video){
// Convert the creation date to something not so robotic..
$creation_date_ms = $video->creationDate;
$creation_date_s = $creation_date_ms / 1000;
$date = date('Ymd',$creation_date_s);
$time = strtotime($date);
//echo $time."<br />";
// and set the reference id for each video.
$ref_id = $video->referenceId;
// Phew! Now, let's first check that there is a reference id for the video. If not, no biggie.
switch ($ref_id) {
case "":
break;
default:
// If so, run the function to create an xml object for that video!
if ($time <= strtotime('20100519')) {
$xml_code[$i] .= reencode_from_existing_source($ref_id);
}
break;
}
}
}
// Finish him.
$xml_code[$i] .= '</publisher-upload-manifest>';
return($xml_code[$i]);
} //endxml
// Creates an xml object for the passed reference id.
function reencode_from_existing_source($ref_id){
$xml_obj = '<reencode-from-existing-source
title-refid="' . $ref_id . '"
encode-to="MP4"
encode-multiple="TRUE"
overwrite-images="FALSE" />' . "\n";
return ($xml_obj);
}
感謝任何能提供幫助的人!
我將使用PHP內置的SimpleXML或DOM功能來生成XML - 它非常強大,您只需要傳入屬性名稱,值和節點。
關於為什么每次都得到相同的結果,每次都會產生相同的CURL請求,因此您可能會得到相同的結果。
這在過去對我有用: http : //snipplr.com/view/3491/convert-php-array-to-xml-or-simple-xml-object-if-you-wish/
該網址上有相當詳細的記錄,但如果您有疑問,請告訴我。
$xml = ArrayToXML::toXML($data_array, 'name_of_root_node');
這應該讓你開始。 對於第二個參數,將其更改為適合您的任何根節點名稱。
編輯:從上面的鏈接添加了ArrayToXML類的片段,以減輕鏈接腐爛的影響。
class ArrayToXML
{
/**
* The main function for converting to an XML document.
* Pass in a multi dimensional array and this recrusively loops through and builds up an XML document.
*
* @param array $data
* @param string $rootNodeName - what you want the root node to be - defaultsto data.
* @param SimpleXMLElement $xml - should only be used recursively
* @return string XML
*/
public static function toXml($data, $rootNodeName = 'data', $xml=null)
{
// turn off compatibility mode as simple xml throws a wobbly if you don't.
if (ini_get('zend.ze1_compatibility_mode') == 1)
{
ini_set ('zend.ze1_compatibility_mode', 0);
}
if ($xml == null)
{
$xml = simplexml_load_string("<?xml version='1.0' encoding='utf-8'?><$rootNodeName />");
}
// loop through the data passed in.
foreach($data as $key => $value)
{
// no numeric keys in our xml please!
if (is_numeric($key))
{
// make string key...
$key = "unknownNode_". (string) $key;
}
// replace anything not alpha numeric
$key = preg_replace('/[^a-z]/i', '', $key);
// if there is another array found recrusively call this function
if (is_array($value))
{
$node = $xml->addChild($key);
// recrusive call.
ArrayToXML::toXml($value, $rootNodeName, $node);
}
else
{
// add single node.
$value = htmlentities($value);
$xml->addChild($key,$value);
}
}
// pass back as string. or simple xml object if you want!
return $xml->asXML();
}
}
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