strtok

strtok

Tokenize string

 **strtok** string $string string $token

Alternative signature (not supported with named arguments):

 **strtok** string $token

splits a string ()

into smaller strings (tokens), with each token being delimited by any character from . 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 . strtok``string``token``token

Note that only the first call to strtok uses the argument. Every subsequent call to strtok only needs the 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 argument again to initialize it. Note that you may put multiple tokens in the parameter. The string will be tokenized when any one of the characters in the argument is found. string``token``string``token``token

Opmerking: > This function behaves slightly different from what one may expect being familiar with . First, a sequence of two or more contiguous characters in the parsed string is considered to be a single delimiter. Also, a situated at the start or end of the string is ignored. For example, if a string is used, successive calls to with as a would return strings "aaa" and "bbb", and then false. As a result, the string will be split into only two elements, while would return an array of 5 elements. explode``token``token``";aaa;;bbb;"``strtok``";"``token``explode(";", $string)

string The being split up into smaller strings (tokens). string

token The delimiter used when splitting up . string

A token, or false if no more tokens are available. string

Voorbeeld: 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}\n";
    $tok = strtok(" \n\t");
}
?>

Voorbeeld: behavior on empty part found

<?php
$first_token  = strtok('/something', '/');
$second_token = strtok('/');
var_dump($first_token, $second_token);
?>

string(9) "something"
    bool(false)

**Voorbeeld: The difference between and **

<?php
$string = ";aaa;;bbb;";

$parts = [];
$tok = strtok($string, ";");
while ($tok !== false) {
    $parts[] = $tok;
    $tok = strtok(";");
}
echo json_encode($parts),"\n";

$parts = explode(";", $string);
echo json_encode($parts),"\n";

["aaa","bbb"]
["","aaa","","bbb",""]

explode