(PHP 4, PHP 5)
explode — Split a string by string
$delimiter
, string $string
[, int $limit
] )
Returns an array of strings, each of which is a substring of
string formed by splitting it on
boundaries formed by the string delimiter.
delimiter
The boundary string.
string
The input string.
limit
If limit is set and positive, the returned array will contain
a maximum of limit elements with the last
element containing the rest of string.
If the limit parameter is negative, all components
except the last -limit are returned.
If the limit parameter is zero, then this is treated as 1.
Although implode() can, for historical reasons,
accept its parameters in either order,
explode() cannot. You must ensure that the
delimiter argument comes before the
string argument.
Returns an array of strings
created by splitting the string parameter on
boundaries formed by the delimiter.
If delimiter is an empty string (""),
explode() will return FALSE.
If delimiter contains a value that is not
contained in string and a negative
limit is used, then an empty array will be
returned, otherwise an array containing
string will be returned.
| Wersja | Opis |
|---|---|
| 5.1.0 |
Support for negative limits was added
|
| 4.0.1 |
The limit parameter was added
|
Przykład #1 explode() examples
<?php
// Example 1
$pizza = "piece1 piece2 piece3 piece4 piece5 piece6";
$pieces = explode(" ", $pizza);
echo $pieces[0]; // piece1
echo $pieces[1]; // piece2
// Example 2
$data = "foo:*:1023:1000::/home/foo:/bin/sh";
list($user, $pass, $uid, $gid, $gecos, $home, $shell) = explode(":", $data);
echo $user; // foo
echo $pass; // *
?>
Przykład #2 explode() return examples
<?php
/* A string that doesn't contain the delimiter will simply return a one-length array of the original string. */
$input1 = "hello";
$input2 = "hello,there";
var_dump( explode( ',', $input1 ) );
var_dump( explode( ',', $input2 ) );
?>
Powyższy przykład wyświetli:
array(1)
(
[0] => string(5) "hello"
)
array(2)
(
[0] => string(5) "hello"
[1] => string(5) "there"
)
Przykład #3 limit parameter examples
<?php
$str = 'one|two|three|four';
// positive limit
print_r(explode('|', $str, 2));
// negative limit (since PHP 5.1)
print_r(explode('|', $str, -1));
?>
Powyższy przykład wyświetli:
Array
(
[0] => one
[1] => two|three|four
)
Array
(
[0] => one
[1] => two
[2] => three
)
Informacja: Ta funkcja jest bezpieczna dla danych binarnych.