在PHP中，用等号和逗号拆分字符串的最佳方法是什么

将以下字符串拆分为键值数组的最佳方法是什么

$string = 'FullName=Thomas Marquez,Address=1234 Sample Rd, Apt 21, XX 33178,Age=37,Code=123';

预期产量

Array
    (
        [FullName] => Thomas Marquez
        [Address] => 1234 Sample Rd, Apt 21, XX 33178
        [Age] => 37
        [Code] => 123
    )

---

可以将

preg\u match\u all（）

与此正则表达式一起使用：

/([a-z]+)=([^=]+)(,|$)/i

详细信息

/
([a-z]+)  match any letter 1 or more times (you can change it to \w if you need numbers
=         match a literal equal sign
([^=]+)   match anything but an equal sign, 1 or more times
(,|$)     match either a comma or the end of the string
/i        case-insensitive flag

像这样：

<?php
$string = "FullName=Thomas Marquez,Address=1234 Sample Rd, Apt 21, XX 33178,Age=37,Code=123";
preg_match_all("/([a-z]+)=([^=]+)(,|$)/i", $string, $m);
var_dump($m[1]); // keys
var_dump($m[2]); // values
var_dump(array_combine($m[1], $m[2])); // combined into one array as keys and values

---

很容易理解explode是如何实现的

  <?php
     $string = 'FullName=Thomas Marquez,Address=1234 Sample Rd, Apt 21, XX 33178,Age=37,Code=123';

     $arr = explode(",", $string);
     $new = array();
     foreach($arr as $key=> $value){
       if (strpos($value,"=")){
          $value2 = explode("=", $value);
          $new[$value2[0]] = $value2[1];
          $prev = $value2[0];
      }else {
         $new[$prev] .= ",".$value;
      }
    }
 print_r($new);
 ?>



现场演示：
explode在这里不起作用，因为地址字段也包含逗号