This tutorial will help you to check if a string contains any substring in PHP programming language. For example, you want to run a specific line of code only if any input string contains another substring in it. Example 1: The following code will evaluate to true because the main string $str contains the...
The JavaScript indexOf() method search for the substring in string and returns the position of the first occurrence of a specified substring. If substring not found, it returns -1. So you can use JavaScript IndexOf() method to check if a string contains substring in it. In this tutorial we will also provides example to...