strtok() splits a string (str) into smaller strings (tokens), with each token being delimited by any character from token. That is, if you have a string like "This is an example string" you could tokenize this string into its individual words by using the space character as the token. Test strtok online.
string strtok ( string $str , string $token )
string strtok ( string $token )
PHP Documentation by the PHP Documentation Group
(PHP 4, PHP 5, PHP 7)
strtok — Tokenize string
en
$string
, string $token
) : string|false
Alternative signature (not supported with named arguments):
$token
) : string|false
strtok() splits a string (string)
into smaller strings (tokens), with each token being delimited by any
character from token.
That is, if you have a string like "This is an example string" you
could tokenize this string into its individual words by using the
space character as the token.
Note that only the first call to strtok uses the string argument.
Every subsequent call to strtok only needs the token to use, as
it keeps track of where it is in the current string. To start
over, or to tokenize a new string you simply call strtok with the
string argument again to initialize it. Note that you may put
multiple tokens in the token parameter. The string will be
tokenized when any one of the characters in the token argument is
found.
string
The string being split up into smaller strings (tokens).
token
The delimiter used when splitting up string.
A string token, or false if no more tokens are available.
Example #1 strtok() example
<?php
$string = "This is\tan example\nstring";
/* Use tab and newline as tokenizing characters as well */
$tok = strtok($string, " \n\t");
while ($tok !== false) {
echo "Word=$tok<br />";
$tok = strtok(" \n\t");
}
?>
Example #2 strtok() behavior on empty part found
<?php
$first_token = strtok('/something', '/');
$second_token = strtok('/');
var_dump($first_token, $second_token);
?>
The above example will output:
string(9) "something"
bool(false)
This function may
return Boolean false, but may also return a non-Boolean value which
evaluates to false. Please read the section on Booleans for more
information. Use the ===
operator for testing the return value of this
function.
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