我建议你换个Angular 来看，从更一般的Angular 来看，你的字符串有一个prefix: field1:value1, field2:value2, ...的模式，所以你可以专注于匹配字段：值对，使用preg_match_all()你可以把所有的匹配作为集合来获取。

$data = [
  'details of the company: name:xyz, company-code:100, mobile:123',
  'details of the company: name:xyz, mobile:12345, company-code:100',
];

$pattern = '((?<field>[a-z-]+):\s*(?<value>[^,:]+)(?:,|$))';

$companies = [];
foreach ($data as $subject) {
    if (preg_match_all($pattern, $subject, $matches, PREG_SET_ORDER)) {
        // new company array
        $company = [];
        // iterate and add found fields
        foreach ($matches as $match) {
            $company[$match['field']] = $match['value'];
        }
        // add company array to list
        $companies[] = $company;
    } 
}

var_dump($companies);

输出：

array(2) {
  [0]=>
  array(3) {
    ["name"]=>
    string(3) "xyz"
    ["company-code"]=>
    string(3) "100"
    ["mobile"]=>
    string(3) "123"
  }
  [1]=>
  array(3) {
    ["name"]=>
    string(3) "xyz"
    ["mobile"]=>
    string(5) "12345"
    ["company-code"]=>
    string(3) "100"
  }
}

另一个解决方案是使用字符串函数。从主题中删除所有不必要的部分，然后拆分它。

$prefix = 'details of the company: ';

$companies = [];
foreach ($data as $subject) {
    $subject = substr($subject, strlen($prefix));
    $pairs = explode(',', $subject);
    $company = [];
    foreach ($pairs as $pair) {
        [$field, $value] = explode(':', $pair);
        $company[trim($field)] = trim($value);
    }
    $companies[] = $company;
}

var_dump($companies);