update_nag()

Contents

Description Description

Return Return

(false|void)

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Source Source

File: wp-admin/includes/update.php

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function update_nag() {
    if ( is_multisite() && ! current_user_can( 'update_core' ) ) {
        return false;
    }
 
    global $pagenow;
 
    if ( 'update-core.php' == $pagenow ) {
        return;
    }
 
    $cur = get_preferred_from_update_core();
 
    if ( ! isset( $cur->response ) || $cur->response != 'upgrade' ) {
        return false;
    }
 
    $version_url = sprintf(
        /* translators: %s: WordPress version */
        esc_url( __( 'https://wordpress.org/support/wordpress-version/version-%s/' ) ),
        sanitize_title( $cur->current )
    );
 
    if ( current_user_can( 'update_core' ) ) {
        $msg = sprintf(
            /* translators: 1: URL to WordPress release notes, 2: new WordPress version, 3: URL to network admin, 4: accessibility text */
            __( '<a href="%1$s">WordPress %2$s</a> is available! <a href="%3$s" aria-label="%4$s">Please update now</a>.' ),
            $version_url,
            $cur->current,
            network_admin_url( 'update-core.php' ),
            esc_attr__( 'Please update WordPress now' )
        );
    } else {
        $msg = sprintf(
            /* translators: 1: URL to WordPress release notes, 2: new WordPress version */
            __( '<a href="%1$s">WordPress %2$s</a> is available! Please notify the site administrator.' ),
            $version_url,
            $cur->current
        );
    }
    echo "<div class='update-nag'>$msg</div>";
}

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Uses Uses

Uses
Uses Description
wp-admin/includes/update.php: get_preferred_from_update_core()

Selects the first update version from the update_core option.
wp-includes/capabilities.php: current_user_can()

Whether the current user has a specific capability.
wp-includes/l10n.php: __()

Retrieve the translation of $text.
wp-includes/l10n.php: esc_attr__()

Retrieve the translation of $text and escapes it for safe use in an attribute.
wp-includes/formatting.php: esc_url()

Checks and cleans a URL.
wp-includes/formatting.php: sanitize_title()

Sanitizes a title, or returns a fallback title.
wp-includes/load.php: is_multisite()

If Multisite is enabled.
wp-includes/link-template.php: network_admin_url()

Retrieves the URL to the admin area for the network.
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