PHP program to find the first word of a sentence

To find the first word of a sentence in PHP, you can use the built-in strtok() function. This function splits a string based on a delimiter and returns the first token.

Example

Here's how to extract the first word from a sentence ?

<?php
    $my_string = 'Hi there, this is a sample statement';
    echo "The first word of the string is " . strtok($my_string, " ");
?>

Output

The first word of the string is Hi

How It Works

The strtok() function splits the string at the first occurrence of the specified delimiter (space in this case). It returns only the first token, which is the first word before any space character.

Alternative Methods

Using explode()

You can also use the explode() function to achieve the same result ?

<?php
    $my_string = 'Hello world, welcome to PHP';
    $words = explode(" ", $my_string);
    echo "The first word is: " . $words[0];
?>

The first word is: Hello

Using substr() and strpos()

Another approach combines substr() and strpos() functions ?

<?php
    $my_string = 'Welcome to TutorialsPoint';
    $space_position = strpos($my_string, " ");
    $first_word = substr($my_string, 0, $space_position);
    echo "First word: " . $first_word;
?>

First word: Welcome

Conclusion

The strtok() function is the most efficient method for extracting the first word from a sentence. Alternative methods like explode() and substr() with strpos() provide more flexibility when working with string manipulation tasks.