absint

The absint function in WordPress is a helper function that sanitizes and returns an absolute integer value. It’s commonly used for sanitizing user input that should be a positive integer.

The function takes a single parameter, which can be any value that can be cast as an integer. It then applies the abs() function to the value to ensure that it’s positive, and the intval() function to ensure that it’s an integer value. If the resulting value is negative, the function will return 0 instead.

Here is an example usage code:

// Sanitize user input
$user_input = $_POST['number'];
$sanitized_input = absint( $user_input );

// Use the sanitized input
if ( $sanitized_input > 0 ) {
    // Do something with the positive integer value
} else {
    // Handle invalid input
}

In this example, the absint function is used to sanitize user input that should be a positive integer. The function ensures that the user input is a positive integer value, and returns 0 if the input is invalid. The sanitized input can then be used in the rest of the code without fear of injection attacks or other security vulnerabilities.

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