abc.php可以接收到传递过来的数据
<?php
//abc.php
//http://www.abc.com/abc.php?keyword=abc
echo $_GET['keyword'];
//output:abc
?>
<?php
//abc.php
//http://www.abc.com/abc.php?keyword=abc
echo $_GET['keyword'];
//output:abc
?>
<?php
//abc.php
//http://www.abc.com/abc.php?keyword=abc&page=1
echo $_GET['keyword'];
echo $_GET['page'];
?>