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PHP | strtok() for tokening string
  • Last Updated : 26 May, 2018

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 GeeksForGeeks"
        $delimiters = " "
Output : 
        I
        love
        GeeksForGeeks

Input : $str = "Hi,GeeksforGeeks Practice"
        $delimiters = ","
Output :
        Hi
        GeeksforGeeks
        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 = "Geeks for Geeks";
   
// 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:
Geeks 
for 
Geeks

Program 2 :




<?php
   
// original string
$str = "Hi,GeeksforGeeks 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 
GeeksforGeeks 
Practice

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

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