ASC排序foreach

Question

以下代碼通過函數從google獲取結果。 這一切都很好，我只想對結果進行排序。

如何對foreach循環中的記錄進行排序按字母順序排列的ASC ...？

function fetch_google($terms="sample search",$numpages=1,$user_agent='Mozilla/5.0 (Windows NT 6.1; rv:8.0) Gecko/20100101 Firefox/8.0') 
{ 
    $searched=""; 
    for($i=0;$i<=$numpages;$i++) 
    { 
     $ch = curl_init(); 
     $url="http://www.google.com/search?hl=en&q=".urlencode($terms)."&start=".$i.'0'; 
     curl_setopt ($ch, CURLOPT_URL, $url); 
     curl_setopt ($ch, CURLOPT_USERAGENT, $user_agent); 
     curl_setopt ($ch, CURLOPT_HEADER, 0); 
     curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1); 
     curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); 
     curl_setopt ($ch, CURLOPT_REFERER, 'http://www.google.com/'); 
     curl_setopt ($ch,CURLOPT_CONNECTTIMEOUT,120); 
     curl_setopt ($ch,CURLOPT_TIMEOUT,120); 
     curl_setopt ($ch,CURLOPT_MAXREDIRS,10); 
     curl_setopt ($ch,CURLOPT_COOKIEFILE,"cookie.txt"); 
     curl_setopt ($ch,CURLOPT_COOKIEJAR,"cookie.txt"); 
     $searched=$searched.curl_exec ($ch); 
     curl_close ($ch); 
    } 

    $xml = new DOMDocument(); 
    @$xml->loadHTML($searched); 
    foreach($xml->getElementsByTagName('a') as $lnk) 
    { 
     if($lnk->getAttribute('class')=='l') 
     { 
      $links[] = array(
     'href' => $lnk->getAttribute('href'), 
     'title' => $lnk->nodeValue 
     ); 
     } 
    } 
    return $links; 
} 

$content = fetch_google("exemple",1); 

foreach($content as $elem) 
{ 
    echo "<a target=\"_blank\" href=$elem[href]>$elem[title]</a><br>"; 
} 

我想通過$ ELEM [標題] ASC

幫助行進行排序是大大appriciated！

Answer 1

想象一下這個例子中，使用此函數usort()

$array = array (
    array('href' => 'http://132', 'title' => 'yxz'), 
    array('href' => 'http://233', 'title' => 'abc'), 
    array('href' => 'http://324', 'title' => '123') 
); 

usort($array, function($a, $b) { 
    if($a['title'] === $b['title']) { 
     return 0; 
    } 

    return $a['title'] < $b['title'] ? - 1 : 1; 
}); 

var_dump($array); 

Answer 2

試試這個：

$array = array (
    array('href' => 'http://132', 'title' => 'yxz'), 
    array('href' => 'http://233', 'title' => 'abc'), 
    array('href' => 'http://324', 'title' => '123') 
); 

$sort = array(); 
foreach($array as $k=>$v) { 
    $sort['title'][$k] = $v['title']; 
} 

array_multisort($sort['title'], SORT_ASC, $array); 


echo "<pre>"; 
print_r($array);