If a String contains another String in PHP 7 and PHP 8

Finding a substring within a string is a common task in PHP. In both PHP 7 and PHP 8, this is typically achieved using functions like strpos() or str_contains(). In this post, we’ll explore both methods.

Example for PHP 7 (Using strpos())

In PHP 7, strpos() is commonly used to find the position of a substring within a string.

 $string = "Hello, welcome to Coding Dynasty!"; $substring = "welcome"; if (strpos($string, $substring) !== false) { echo "Substring found!"; } else { echo "Substring not found!"; } 

In the above example, strpos() returns the position of the first occurrence of the substring or false if not found.

Example for PHP 8 (Using str_contains())

PHP 8 introduces a new function, str_contains(), which provides a simpler and more readable way to check if a string contains a substring.

 $string = "Hello, welcome to Coding Dynasty!"; $substring = "welcome"; if (str_contains($string, $substring)) { echo "Substring found!"; } else { echo "Substring not found!"; } 

str_contains() returns true if the substring is found and false otherwise, making it more intuitive than strpos().

Conclusion
While strpos() is still available in PHP 8, the new str_contains() function offers a more readable solution. Both methods efficiently allow you to search for a substring within a string, with str_contains() being the preferred choice in PHP 8.