Split a text by a backslash \ ?

问题

I've searched for hours. How can I separate a string by a "\"

I need to separate HORSE\COW into two words and lose the backslash.

回答1:

$array = explode("\\",$string);

This will give you an array, for "HORSE\COW" it will give $array[0] = "HORSE" and $array[1] = "COW". With "HORSE\COW\CHICKEN", $array[2] would be "CHICKEN"

Since backslashes are the escape character, they must be escaped by another backslash.

回答2:

You would use explode() and escape the escape character (\).

$str = 'HORSE\COW';

$parts = explode('\\', $str);

var_dump($parts);

CodePad.

Output

array(2) {
  [0]=>
  string(5) "HORSE"
  [1]=>
  string(3) "COW"
}

回答3:

Just explode() it:

$text = 'foo\bar';

print_r(explode('\\', $text)); // You have to backslash your
                               // backslash. It's used for
                               // escaping things, so you
                               // have to be careful when
                               // using it in strings.

---

A backslash is used for escaping quotes and denoting special characters:

• \n is a new line.
• \t is a tab character.
• \" is a quotation mark. You have to escape it, or PHP will read it as the end of a string.
• \' same goes for a single quote.
• \\ is a backslash. Since it's used for escaping other things, you have to escape it. Kinda odd.

来源：https://stackoverflow.com/questions/5775418/split-a-text-by-a-backslash