| Conditions | 10 | 
| Paths | 97 | 
| Total Lines | 60 | 
| Lines | 0 | 
| Ratio | 0 % | 
| Changes | 0 | ||
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
| 1 | <?php //phpcs:ignore WordPress.Files.FileName.InvalidClassFileName  | 
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| 56 | 	public static function render_upgrade_nudge( $props ) { | 
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| 57 | $plan_slug = $props['plan'];  | 
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| 58 | jetpack_require_lib( 'plans' );  | 
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| 59 | $plan = Jetpack_Plans::get_plan( $plan_slug );  | 
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| 60 | |||
| 61 | 		if ( ! $plan ) { | 
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| 62 | return self::render_component(  | 
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| 63 | 'upgrade-nudge',  | 
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| 64 | array(  | 
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| 65 | 'planName' => __( 'a paid plan', 'jetpack' ),  | 
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| 66 | 'upgradeUrl' => '',  | 
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| 67 | )  | 
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| 68 | );  | 
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| 69 | }  | 
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| 70 | |||
| 71 | // WP.com plan objects have a dedicated `path_slug` field, Jetpack plan objects don't  | 
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| 72 | // For Jetpack, we thus use the plan slug with the 'jetpack_' prefix removed.  | 
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| 73 | $plan_path_slug = wp_startswith( $plan_slug, 'jetpack_' )  | 
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| 74 | ? substr( $plan_slug, strlen( 'jetpack_' ) )  | 
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| 75 | : $plan->path_slug;  | 
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| 76 | |||
| 77 | $post_id = get_the_ID();  | 
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| 78 | $post_type = get_post_type();  | 
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| 79 | |||
| 80 | // The editor for CPTs has an `edit/` route fragment prefixed.  | 
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| 81 | $post_type_editor_route_prefix = in_array( $post_type, array( 'page', 'post' ), true ) ? '' : 'edit';  | 
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| 82 | |||
| 83 | 		if ( method_exists( 'Jetpack', 'build_raw_urls' ) ) { | 
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| 84 | $site_slug = Jetpack::build_raw_urls( home_url() );  | 
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| 85 | 		} elseif ( class_exists( 'WPCOM_Masterbar' ) && method_exists( 'WPCOM_Masterbar', 'get_calypso_site_slug' ) ) { | 
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| 86 | $site_slug = WPCOM_Masterbar::get_calypso_site_slug( get_current_blog_id() );  | 
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| 87 | }  | 
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| 88 | |||
| 89 | // Post-checkout: redirect back to the editor.  | 
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| 90 | $redirect_to = ( defined( 'IS_WPCOM' ) && IS_WPCOM )  | 
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| 91 | ? '/' . implode( '/', array_filter( array( $post_type_editor_route_prefix, $post_type, $site_slug, $post_id ) ) )  | 
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                         | 
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| 92 | : add_query_arg(  | 
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| 93 | array(  | 
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| 94 | 'action' => 'edit',  | 
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| 95 | 'post' => $post_id,  | 
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| 96 | ),  | 
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| 97 | admin_url( 'post.php' )  | 
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| 98 | );  | 
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| 99 | |||
| 100 | $upgrade_url =  | 
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| 101 | $plan_path_slug  | 
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| 102 | ? add_query_arg(  | 
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| 103 | 'redirect_to',  | 
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| 104 | $redirect_to,  | 
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| 105 | 				"https://wordpress.com/checkout/${site_slug}/${plan_path_slug}" | 
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| 106 | ) : '';  | 
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| 107 | |||
| 108 | return self::render_component(  | 
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| 109 | 'upgrade-nudge',  | 
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| 110 | array(  | 
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| 111 | 'planName' => $plan->product_name,  | 
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| 112 | 'upgradeUrl' => $upgrade_url,  | 
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| 113 | )  | 
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| 114 | );  | 
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| 115 | }  | 
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| 116 | }  | 
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| 117 | 
If you define a variable conditionally, it can happen that it is not defined for all execution paths.
Let’s take a look at an example:
In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.
Available Fixes
Check for existence of the variable explicitly:
Define a default value for the variable:
Add a value for the missing path: