Search results for: "truthy values"

How can you ensure that a variable from a form remains true instead of false in PHP?

To ensure that a variable from a form remains true instead of false in PHP, you can explicitly check if the form input is set and has a truthy value b...

What are the differences between using if ($id){} and if (isset($id)){} in PHP scripts, and which is recommended for use?

Using `if ($id){}` checks if the variable `$id` has a truthy value, meaning it is not empty, null, false, or 0. On the other hand, `if (isset($id)) {}...

How can dropdown selection values be linked to numerical values in PHP for CSV export?

To link dropdown selection values to numerical values in PHP for CSV export, you can create an associative array where the dropdown values are keys an...

How can INT values be subtracted from VARCHAR values in PHP/MySQL?

When trying to subtract INT values from VARCHAR values in PHP/MySQL, you may encounter issues due to data type incompatibility. To solve this problem,...

How can values from form inputs be temporarily replaced in PHP without affecting the original values?

When working with form inputs in PHP, you may need to temporarily replace the values without affecting the original values. One way to do this is by s...