The explode () function splits the string into arrays.
Syntax
explode (separator,string,limit)
| Parameters |
Description |
| Separator |
Necessary. Specify where to split the string. |
| String |
Necessary. The string to split. |
| Limit |
Optional. Specify the maximum number of array elements to return. |
Description
This function returns an array of strings, each of which is a substring separated by separator as a boundary point.
Separator parameter cannot be an empty string. If separator is an empty string (""), Explode () returns FALSE. If the value contained in separator is not found in string, explode () returns an array that contains a single element in string.
If the limit parameter is set, the returned array contains up to limit elements, and the last element will contain the remainder of the string.
If the limit argument is a negative number, all elements except the last-limit element are returned. This feature is new in the PHP 5.1.0.
Tips and Comments
Note: The parameter limit is added in the PHP 4.0.1.
Note: Although implode () can receive two parameter orders for historical reasons, explode () is not available. You must ensure that the separator parameter is not preceded by a string parameter.
Example
in this case, we'll split the string into arrays:
Copy Code code as follows:
<?php
$STR = "Hello World". It ' s a beautiful day. ";
Print_r (Explode ("", $str));
?>
Output:
Array
(
[0] => Hello
[1] => world.
[2] => It ' s
[3] => a
[4] => beautiful
[5] => day.
)
Explode Function Example Tutorial
Explode (string separator, string string [, int limit])
separator is an empty string ("") and Explode () returns FALSE.
If separator contains a value that is not found in string, explode () returns an array that contains a single element of string.
Copy Code code as follows:
Explode instance One
$explode = "AAA,BBB,CCC,DDD,EXPLODE,JJJJ";
$array = Explode (', ', $explode);
Print_r ($array);
/*
Result is
Array
(
[0] => AAA
[1] => BBB
[2] => CCC
[3] => DDD
[4] => explode
[5] => JJJJ
)
*/
//We can use the explode function with the End function when we process the date or get the file extension, the following example
Copy Code code as follows:
$file = "Www.jb51.net.gif";
$extArray = Explode ('. ', $file);
$ext = End ($extArray);
Echo $ext;
/*
The output value is. gif
to use some of the functions that appear with the error prompts
Note:separator cannot is an empty string. Note: The separator can not be an empty string.
the string to be split is empty
Definition and Usage do not use split functions
may be you set the split character does not exist
