php 向搜索引擎访问者显示自定义内容

Posted 2021-05-05

<?php
if ( function_exists( 'mm_from_search_engine' ) ) {
	if ( mm_from_search_engine() ) {

		// INSERT YOUR CODE HERE

	}
}
?>

<?php
function mm_from_search_engine() {

	$ref = $_SERVER['HTTP_REFERER'];
	$SE  = array('/search?', '.google.', 'images.google.', 'web.info.com', 'search.', 'del.icio.us/search', 'soso.com', '/search/', '.yahoo.');
	
	foreach( $SE as $source ) {
		if ( strpos ($ref, $source ) !== false ) return true;
	}
	return false;
}
?>