[wp-trac] [WordPress Trac] #59275: PHP 8.1 Deprecated function: rtrim(): Passing null to parameter

[WordPress Trac]

#59275: PHP 8.1 Deprecated function: rtrim(): Passing null to parameter
--------------------------+--------------------------------
 Reporter:  srishtis      |       Owner:  (none)
     Type:  defect (bug)  |      Status:  assigned
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Formatting    |     Version:  6.2.2
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:  php-compatibility
--------------------------+--------------------------------
Description changed by hellofromTonya:

Old description:

> Deprecated - rtrim(): Passing null to parameter #1 ($string) of type
> string is deprecated
>
> used in
> wp-includes/formatting.php:2809
> rtrim()
> wp-includes/formatting.php:2809
> untrailingslashit()
> wp-includes/formatting.php:2794
> trailingslashit()
> wp-content/mu-plugins/http-concat/concat-utils.php:27
> WPCOM_Concat_Utils::realpath()
> wp-content/mu-plugins/http-concat/cssconcat.php:84
> WPcom_CSS_Concat->do_items()
> wp-includes/functions.wp-styles.php:68
> wp_print_styles()
> wp-includes/class-wp-hook.php:308
> do_action('wp_head')
> wp-includes/general-template.php:3049
> wp_head()
> wp-includes/template-canvas.php:17
> MU Plugin: http-concat

New description:

 Deprecated - rtrim(): Passing null to parameter #1 ($string) of type
 string is deprecated

 used in
 {{{
 wp-includes/formatting.php:2809
 rtrim()
 wp-includes/formatting.php:2809
 untrailingslashit()
 wp-includes/formatting.php:2794
 trailingslashit()
 wp-content/mu-plugins/http-concat/concat-utils.php:27
 WPCOM_Concat_Utils::realpath()
 wp-content/mu-plugins/http-concat/cssconcat.php:84
 WPcom_CSS_Concat->do_items()
 wp-includes/functions.wp-styles.php:68
 wp_print_styles()
 wp-includes/class-wp-hook.php:308
 do_action('wp_head')
 wp-includes/general-template.php:3049
 wp_head()
 wp-includes/template-canvas.php:17
 }}}

 MU Plugin: http-concat

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Ticket URL: <https://core.trac.wordpress.org/ticket/59275#comment:2>
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