What is the purpose of using strcmp(trim($password2),'') != 1 in PHP form validation and how does it help in comparison?

When using strcmp(trim($password2),'') != 1 in PHP form validation, the purpose is to check if the trimmed password input is not an empty string. This helps ensure that the user has actually entered a password before proceeding with the form submission. 

$password2 = $_POST['password2'];

if(strcmp(trim($password2),'') != 1) {
    // Password is not empty, proceed with form validation
} else {
    // Display an error message for empty password
}

Keywords

strcmp trim form validation comparison PHP

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