What is PHP strtok() for tokening string?

In this article, we will learn PHP strtok() for tokening string,This free PHP tutorial for complete beginners will help you learn PHP from scratch.

PHP strtok() for tokening string - ❤️PHP Tutorials In 2024

Like C strtok(), PHP strtok() is used to tokenize a string into smaller parts on the basis of given delimiters It takes input String as a argument along with delimiters (as second argument).

Syntax :

string strtok ( string $string, string $delimiters )

Parameters :This function accepts two parameters and both of them are mandatory to be passed.
1. $string: This parameter represents the given input string.
2. $delimiters: This parameter represents the delimiting characters (split characters).

Return Value :This function returns a string or series of strings separated by given delimiters. Series of strings can be found by using strtok() in while loop.

Examples:

Input : $str = "I love w3wiki"
        $delimiters = " "
Output : 
        I
        love
        w3wiki

Input : $str = "Hi,w3wiki Practice"
        $delimiters = ","
Output :
        Hi
        w3wiki
        Practice

Note that, Only first call needs string argument, after that only delimiters are required because it automatically keeps the status of current string.
Below programs illustrates the strtok() function in PHP:

Program 1 :

<?php 
   
// original string 
$str = "Beginner for Beginner"; 
   
// declaring delimiters 
$del = " "; 
  
//calling strtok() function 
$token = strtok($str, $del); 
  
// while loop to get all tokens 
while ($token !== false) 
{ 
    echo "$token \n"; 
    $token = strtok($del); 
}   
?> 

Output:

Beginner 
for 
Beginner

Program 2 :

<?php 
   
// original string 
$str = "Hi,w3wiki Practice"; 
   
// declaring delimiters 
$del = ", "; 
  
// calling strtok() function 
$token = strtok($str, $del); 
  
// while loop to get all tokens 
while ($token !== false) 
{ 
    echo "$token \n"; 
    $token = strtok($del); 
}   
?> 

Output:

Hi 
w3wiki 
Practice

Reference : http://php.net/manual/en/function.strtok.php