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post_content;
$content = apply_filters('the_content', $content);
$rawData = str_replace(']]>', ']]>', $content);
$rawData = strip_tags($rawData);
$stopwords = array(' ',',','(',')','!','?',"`","\n","”","“");
$rawData = str_replace($stopwords, " ", $rawData);
$rawData = str_replace("’", "'", $rawData);
$rawData = preg_replace("/[^A-Za-z0-9' ]/","",$rawData);
// need to strip common words array from the post information at or before this point
//
// Start of common word list
//
$wordlist = array("the","a","b","c","d","e","f","g",
"of","and","a","to","in","is","you","that","you’re","h",
"it","he","was","for","on","are","as","with","don't","j",
"his","they","i","at","be","this","have","from","it's",
"or","one","had","by","word","but","not","i'd","k","l","m",
"what","all","were","we","when","your","can","you’d","n",
"said","there","use","an","each","which","she","o","p",
"do","how","their","if","will","up","other","about","q",
"out","many","then","them","these","so","some","her","s",
"would","make","like","him","into","time","has","look","r",
"two","more","write","go","see","number","no","way","t","u",
"could","people","my","than","first","water","been","v","w",
"call","who","oil","its","now","find","long","down","x","y","z",
"day","did","get","come","made","may","part","over","1","2","3",
"new","sound","take","only","little","work","know","4","5","6","7",
"place","year","live","me","back","give","most","very","8","9","0",
"after","thing","our","just","name","good","sentence","you're",
"man","think","say","great","where","help","through","that's",
"much","before","line","right","too","mean","old","you'd",
"any","same","tell","boy","follow","came","want",
"show","also","around","form","three","small","set","put","end",
"does","another","well","large","must","big","even","such","because","turn",
"here","why","ask","went","men","read","need",
"land","different","home","us","move","try","kind","hand","picture",
"again","change","off","play","spell","air","away",
"animal","house","point","page","letter",
"mother","answer","found","study","still","learn","should","america",
"world","high","every","near","add","food","between",
"own","below","country","plant","last","school","father",
"keep","tree","never","start","city","earth","eye",
"light","thought","head","under","story","saw","left",
"don't","few","while","along","might","close","something",
"seem","next","hard","open","example","begin","life",
"always","those","both","paper","together","got",
"group","often","run","important","until","children",
"side","feet","car","mile","night","walk","white",
"sea","began","grow","took","river","four","carry",
"state","once","book","hear","stop","without","second",
"later","miss","idea","enough","eat","face","watch","far",
"indian","really","almost","let","above","girl","sometimes",
"mountain","cut","young","talk","soon","list","song",
"being","leave","family","it's","body","music","color",
"stand","sun","questions","fish","area","mark","dog",
"horse","birds","problem","complete","room","knew",
"since","ever","piece","told","usually","didn't",
"friends","easy","heard","order","red","door","sure",
"become","top","ship","across","today","during","short",
"better","best","however","low","hours","black",
"products","happened","whole","measure","remember",
"early","waves","reached","listen","wind","rock",
"space","covered","fast","several","hold","himself",
"toward","five","step","morning","passed","vowel",
"true","hundred","against","pattern","numeral",
"table","north","slowly","money","map","farm",
"pulled","draw","voice","seen","cold","cried",
"plan","notice","south","sing","war","ground","fall",
"king","town","i'll","unit","figure","certain","field",
"travel","wood","fire","upon");
//
// End of common word list
//
$rawData = strtolower($rawData);
foreach($wordlist As $current_word){
$rawData = preg_replace("/\s". $current_word ."\s/"," ",$rawData);
}
// $rawData = str_replace($wordlist, " ", $rawData);
// and make tags rawdata lower case
$wordsArray = explode(' ',$rawData);
//$orderedArray = array_count_values($wordsArray);
$orderedArray = array();
for($counter=0;$countervalue where key is the word and value is the number of occurances
// pull out the keys relating to the n highest values from the array and put them into a commer seperated string
// where n is the number of tag per post (defult to 5, but should be user defined)
arsort($orderedArray);
reset($orderedArray);
$newTags = "";
if(get_option('autoTag_number') != ""){
$numberOfTags = get_option('autoTag_number');
} else {
$numberOfTags = 5;
}
for($counter=0;$counter<$numberOfTags;$counter++){
if (key($orderedArray) != "") {
$newTags = $newTags . key($orderedArray) . ", ";
}
next($orderedArray);
}
trim($newTags,' ');
trim($newTags,',');
if(get_option('autoTag_option') != ""){
$replace = get_option('autoTag_option');
} else {
$replace = "true";
}
wp_set_post_tags( $post_id, $newTags, $replace );
}