PHP / Laravel 5.4 - 解析逗号分隔列表以允许相同的行或多行？

Question

I am creating a tool to send emails and I want to allow for the option to write them in one line separated by a comma and space:

[e-mail], [e-mail]

OR multiple lines separated by a comma and space (which inadvertently creates more space):

[e-mail],
[e-mail]

The php code for the first option is easy:

$addresses = explode(', ', $this->data['emails']); 

Which creates an array like this when you multi-line it:

array:1 [
  0 => """
    [e-mail],

    [e-mail]
    """
]

Anyone know some simple logic/regex to allow for either? The first example of $this->data['emails'] comes as a string:

"[e-mail], [e-mail]"

And the second has the special characters to account for:

"""
[e-mail], 

[e-mail]
"""

Answer 1

Alright, figured it out:

    if (strpos($this->data['emails'], "
")) {
        $addresses = explode(", 
", $this->data['emails']);
    } else {
        $addresses = explode(',', $this->data['emails']);
    }