Search results for: "DNS checks"

Why is it recommended not to use preg_match() for simple substring checks in PHP and use functions like strpos() or strstr() instead?

Using `preg_match()` for simple substring checks in PHP is not recommended because regular expressions are more resource-intensive compared to using f...

What are some best practices for handling multiple variable checks in PHP to avoid errors or unexpected behavior?

When handling multiple variable checks in PHP, it's important to use isset() or empty() functions to avoid errors or unexpected behavior. These functi...

Are there any best practices for handling multiple isset() checks in PHP?

When handling multiple isset() checks in PHP, it is best practice to use the null coalescing operator (??) to provide a default value if the variable...

How can PHP scripts be modified to enforce CLI execution instead of relying on IP address checks for access control?

To enforce CLI execution instead of relying on IP address checks for access control in PHP scripts, you can use the `php_sapi_name()` function to chec...

What are some potential drawbacks of using JavaScript to interact with PHP for page loading checks?

One potential drawback of using JavaScript to interact with PHP for page loading checks is that it may not be as reliable as server-side checks. If th...