get_post_custom_keys()

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Retrieve meta field names for a post.

Description Description

If there are no meta fields, then nothing (null) will be returned.


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Parameters Parameters

$post_id

(int) (Optional) Post ID. Default is ID of the global $post.


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Return Return

(array|void) Array of the keys, if retrieved.


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Source Source

File: wp-includes/post.php

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function get_post_custom_keys( $post_id = 0 ) {
    $custom = get_post_custom( $post_id );
 
    if ( ! is_array( $custom ) ) {
        return;
    }
 
    $keys = array_keys( $custom );
    if ( $keys ) {
        return $keys;
    }
}


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Changelog Changelog

Changelog
Version Description
1.2.0 Introduced.
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