在PHP中将字符串转换为key-> value数组

Question

如果我有一串key->值对,格式如下:

MIME-Version: 1.0
From: "Tim Lincecum"
Reply-To: "Tim Lincecum"
Return-path: "Tim Lincecum"
Content-Type: text/html; charset=iso-8859-1
Subject: Giants Win World Series!

我如何获得这样的数组arr['From'] = "Tim Lincecum",等

我知道有这个explode()功能,但我看到的唯一分隔符(冒号)位于键和值的中间,而不是每对之间.我怎么处理这个？

Answer 1

你总是可以使用正则表达式:)

PHP

$str = 'MIME-Version: 1.0' . "\r\n" .
'From: "Tim Lincecum"' . "\r\n" . 
'Reply-To: "Tim Lincecum"' . "\r\n" . 
'Return-path: "Tim Lincecum"' . "\r\n" . 
'Content-Type: text/html; charset=iso-8859-1' . "\r\n" . 
'Subject: Giants Win World Series!';

preg_match_all('/(.*?):\s?(.*?)(\r\n|$)/', $str, $matches);

$headers = array_combine(array_map('trim', $matches[1]), $matches[2]);

var_dump($headers);

产量

array(6) {
  ["MIME-Version"]=>
  string(3) "1.0"
  ["From"]=>
  string(14) ""Tim Lincecum""
  ["Reply-To"]=>
  string(14) ""Tim Lincecum""
  ["Return-path"]=>
  string(14) ""Tim Lincecum""
  ["Content-Type"]=>
  string(29) "text/html; charset=iso-8859-1"
  ["Subject"]=>
  string(24) "Giants Win World Series!"
}

在IDEone上看到它.