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We use php in ubuntu to get data from twitter, store it in json, and perform morphological analysis of [text] in json.
I'm using php-mecab, but I don't know how to extract only the words that have been determined.
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Applicable source code<? php
$file = file_get_contents ("tweets.json");
$options = array ('-d', '/ usr/local/lib/mecab/dic/mecab-ipadic-neologd');
$file2 = json_decode ($file, true);
$json_count = count ($file2 ["statuses"]);
$tweets = $file2 ['statuses'] [0] ['text'];
$mecab = new \ MeCab \ Tagger ($options);
$nodes = $mecab->parseToNode ($tweets);
foreach ($nodes as $n)
{
echo $surface = $n->getSurface (). "<br />";
echo $feature = $n->getFeature (). "<br />";
}
?>php 7.0.33
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Answer # 1
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$featureshould be divided by a comma, determine if the value of the third element from the beginning is "region", and extract the word when it is true. Uka.Note that "Roppongi Hills" in this example cannot be extracted as a region because the value of the third element is not "region".
If you want to manage this, look for a dictionary that uses "Roppongi Hills" as "region" and install it in MeCab, or add a code to determine whether it is "region" when you extract words. Is necessary.