http_build_query — 生成 URL-encode 之后的请求字符串
官方例子:
<?php
$data = array(‘foo’=>’bar’,
‘baz’=>’boom’,
‘cow’=>’milk’,
‘php’=>’hypertext processor’);
echo http_build_query($data) . “\n”;
echo http_build_query($data, ”, ‘&’);
?>
foo=bar&baz=boom&cow=milk&php=hypertext+processor foo=bar&baz=boom&cow=milk&php=hypertext+processor
更多参考:http://php.net/manual/zh/function.http-build-query.php