本文实例讲述了php获取从百度、谷歌等搜索引擎进入网站关键词的方法。分享给大家供大家参考。具体实现方法如下:
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<?php
function search_word_from() {
$referer = isset( $_SERVER [ 'HTTP_REFERER' ])? $_SERVER [ 'HTTP_REFERER' ]: '' ;
if ( strstr ( $referer , 'baidu.com' )){ //百度
preg_match( "|baidu.+wo?r?d=([^\\&]*)|is" , $referer , $tmp );
$keyword = urldecode( $tmp [1] );
$from = 'baidu' ;
} elseif ( strstr ( $referer , 'google.com' ) or strstr ( $referer , 'google.cn' )){ //谷歌
preg_match( "|google.+q=([^\\&]*)|is" , $referer , $tmp );
$keyword = urldecode( $tmp [1] );
$from = 'google' ;
} elseif ( strstr ( $referer , 'so.com' )){ //360搜索
preg_match( "|so.+q=([^\\&]*)|is" , $referer , $tmp );
$keyword = urldecode( $tmp [1] );
$from = '360' ;
} elseif ( strstr ( $referer , 'sogou.com' )){ //搜狗
preg_match( "|sogou.com.+query=([^\\&]*)|is" , $referer , $tmp );
$keyword = urldecode( $tmp [1] );
$from = 'sogou' ;
} elseif ( strstr ( $referer , 'soso.com' )){ //搜搜
preg_match( "|soso.com.+w=([^\\&]*)|is" , $referer , $tmp );
$keyword = urldecode( $tmp [1] );
$from = 'soso' ;
} else {
$keyword = '' ;
$from = '' ;
}
return array ( 'keyword' => $keyword , 'from' => $from );
}
//以下为测试
//在搜索引擎搜索个关键词,进入网站
$word = search_word_from();
if (! empty ( $word [ 'keyword' ])){
echo '关键字:' . $word [ 'keyword' ]. ' 来自:' . $word [ 'from' ];
}
?>
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希望本文所述对大家的php程序设计有所帮助。