How do I check if a string contains a substring

To check if a string contains a substring in PHP, you can use the strpos() function. This function returns the position of the first occurrence of a substring within a string. If the substring is not found, it returns false.

Here is an example:


        <?php
        $string = "Hello, welcome to OpenAI!";
        $substring = "welcome";

        if (strpos($string, $substring) !== false) {
            echo "The substring '$substring' was found in the string.";
        } else {
            echo "The substring '$substring' was not found in the string.";
        }
        ?>