- strpos: documentation ( source)
- preg_replace: documentation ( source)
<?php
$search = "phpversion();#|apple/e\0";
if (strpos($search, 'apple') !== false){
echo preg_replace("/".$search."/", $search." <img src='".$search.".png'>", "apple");
}else{
echo "Please search for apple, orange, banana, or kiwi.";
}
?>