PHP Check whether a specific word/substring exists in a string

PHP Check whether a specific word/substring exists in a string

Checking substring in a string in PHP: Here, we will figure out how to check whether a word/substring exists in the string in PHP? Here, we will check a substring and furthermore print its record/position in the string.

Given a string and a word/substring, and we need to check whether a given word/substring exists in the string.

PHP code to check substring in the string:

<?php

//function  to find the substring Position
//if substring exists in the string
function findMyWord($s, $w) {
    if (strpos($s, $w) !== false) {
        echo 'String contains ' . $w . '<br/>';
    } else {
        echo 'String does not contain ' . $w . '<br/>';
    }
}

//Run the function
findMyWord('The Quick brown fox jumps right over the Lazy Dog', 'fox');
findMyWord('The Quick brown fox jumps right over the Lazy Dog', 'hello');
?>

Output:

String contains fox
String does not contain hello

Clarification:

To check if a string contains a word (or substring) we utilize the PHP strpos() function. We check if the word ($w) is available in the String ($s). Since strpos() additionally returns a non-Boolean value which assesses to bogus, We need to check the condition to be unequivocal !== bogus (Not equivalent to False) Which guarantees that we get an increasingly solid reaction.

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