Title: POP3::is_ok
Published: February 3, 2022
Last modified: May 20, 2026

---

# POP3::is_ok( $cmd = "" )

## In this article

 * [Source](https://developer.wordpress.org/reference/classes/pop3/is_ok/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/classes/pop3/is_ok/?output_format=md#related)

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## 󠀁[Source](https://developer.wordpress.org/reference/classes/pop3/is_ok/?output_format=md#source)󠁿

    ```php
    function is_ok ($cmd = "") {
        //  Return true or false on +OK or -ERR

        if( empty($cmd) )
            return false;
        else
            return( stripos($cmd, '+OK') !== false );
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/class-pop3.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/class-pop3.php#L613)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-pop3.php#L613-L620)

## 󠀁[Related](https://developer.wordpress.org/reference/classes/pop3/is_ok/?output_format=md#related)󠁿

| Uses | Description | 
| [stripos()](https://developer.wordpress.org/reference/functions/stripos/)`wp-includes/class-pop3.php` |  |

| Used by | Description | 
| [POP3::connect()](https://developer.wordpress.org/reference/classes/pop3/connect/)`wp-includes/class-pop3.php` |  | 
| [POP3::user()](https://developer.wordpress.org/reference/classes/pop3/user/)`wp-includes/class-pop3.php` |  | 
| [POP3::pass()](https://developer.wordpress.org/reference/classes/pop3/pass/)`wp-includes/class-pop3.php` |  | 
| [POP3::apop()](https://developer.wordpress.org/reference/classes/pop3/apop/)`wp-includes/class-pop3.php` |  | 
| [POP3::top()](https://developer.wordpress.org/reference/classes/pop3/top/)`wp-includes/class-pop3.php` |  | 
| [POP3::pop_list()](https://developer.wordpress.org/reference/classes/pop3/pop_list/)`wp-includes/class-pop3.php` |  | 
| [POP3::get()](https://developer.wordpress.org/reference/classes/pop3/get/)`wp-includes/class-pop3.php` |  | 
| [POP3::last()](https://developer.wordpress.org/reference/classes/pop3/last/)`wp-includes/class-pop3.php` |  | 
| [POP3::reset()](https://developer.wordpress.org/reference/classes/pop3/reset/)`wp-includes/class-pop3.php` |  | 
| [POP3::uidl()](https://developer.wordpress.org/reference/classes/pop3/uidl/)`wp-includes/class-pop3.php` |  | 
| [POP3::delete()](https://developer.wordpress.org/reference/classes/pop3/delete/)`wp-includes/class-pop3.php` |  |

[Show 6 more](https://developer.wordpress.org/reference/classes/pop3/is_ok/?output_format=md#)
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