Question

When I was trying to recieve a code from PHP page using jQuery Ajax, I found a strange error:
“Undefined variable: errors”

<?php
$errors = array("already_signed" => "You are already signed in", "field_empty" => "All fields must be filled", "long_username" => "Username length must be less then 40 symbols", "incorrect_email" => "Your mail is incorrent", "user_exists" => "User with such username already exists", "account_not_found" => "Account not found", "passwords_arent_same" => "Passwords must be the same");
Function check_post() {
    $answer = array("ok" => "false", "answer" => $errors["field_empty"]);
    echo json_encode($answer);
}

check_post();
?>

If I’ll echo without function – everything will be ok.
Thanks for any help

Answer 1

You are trying to access a global variable from within the function. In order to acomplish that, you need to use “global” keyword:

<?php
$errors = array("already_signed" => "You are already signed in", "field_empty" => "All fields must be filled", "long_username" => "Username length must be less then 40 symbols", "incorrect_email" => "Your mail is incorrent", "user_exists" => "User with such username already exists", "account_not_found" => "Account not found", "passwords_arent_same" => "Passwords must be the same");
function check_post() {
    global $errors;
    $answer = array("ok" => "false", "answer" => $errors["field_empty"]);
    echo json_encode($answer);
}
check_post();
?>