http_build_query 比较好用的字符串函数
<?php
/*
* http_build_query
* 是一个字符串操作函数
*针对的是数组和对象生成 url-encode 之后的请求字符串
*
*/
$arr = array("121212"=>"woman","56856"=>"men");
class jclass{
public $a=123;
private $b=323;
protected $c = 897;
}
$str = http_build_query($arr);//string(22)"121212=woman&56856=men"
var_dump($str);
echo"<br>";
$jclass = new jclass();
$jclass = json_encode($jclass);//string(9)"{"a":123}"
var_dump($jclass);
echo"<br>";
echo http_build_query($arr,'',"_kkkkk");
echo"<br>";
var_dump(http_build_query($arr,"kkk_"));
echo"<br>";
$data = array('user'=>array('name'=>'bob smith',
'age'=>47,
'sex'=>'m',
'dob'=>'5/12/1956'),
'pastimes'=>array('golf', 'opera', 'poker', 'rap'),
'children'=>array('bobby'=>array('age'=>12,
'sex'=>'m'),
'sally'=>array('age'=>8,
'sex'=>'f')),
'ceo');
echo http_build_query($data, 'flags_'); echo"<br>";
// http://dev.blogs/string/http_build_query.php?user[name]=bob+smith&user[age]=47&user[sex]=m&user[dob]=5%2f12%2f1956&pastimes[0]=golf&pastimes[1]=opera&pastimes[2]=poker&pastimes[3]=rap&children[bobby][age]=12&children[bobby][sex]=m&children[sally][age]=8&children[sally][sex]=f&flags_0=ceo
$get_arr = $_get;
print_r($get_arr); echo"<br>";//呵呵，过来的已经是数组了
$cval ="something from somewhere";
setcookie("test_cookie", $cval, time() + 60 * 60 * 24);
var_dump($_cookie);echo '<br>';
//var_dump(http_build_cookie($_cookie));//报错，是因为 pecl_http 扩展是没有默认安装的，要先去安装扩展 php_http.dll