Preview:
<?php

function isSubstring($string, $substring) 
{
    return strpos($string, $substring) !== false;
}

// Usage example:
$mainString = "Hello, World!";
$substring = "World";
if (isSubstring($mainString, $substring)) {
    echo "The substring '$substring' is found in the main string.";
} else {
    echo "The substring '$substring' is not found in the main string.";
}
downloadDownload PNG downloadDownload JPEG downloadDownload SVG

Tip: You can change the style, width & colours of the snippet with the inspect tool before clicking Download!

Click to optimize width for Twitter