Wordpress VIP PHP Coding Checks

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Perform checks as per PHPCS stadard 
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phpcs --standard=WordPressVIPMinimum,WordPress,WordPress-Docs [File name along with full path]

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Automatic fixes with PHPCBF Stadards
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phpcbf --standard=WordPressVIPMinimum,WordPress,WordPress-Docs [File name along with full path]

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Array/Object - If var is a array
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- is_array($testArray)
- is_object($testObject)

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Array - If var is a array and access perticular property
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- property_exists($testArray, "dynamic")
- property_exists($testObject, "dynamic")

- Ex (Array)
if ( is_array( $testArray ) && property_exists( $testArray, "dynamic" ) ) {
---
---
}

- Ex (Object)
if ( is_object( $testObject ) && property_exists( $testObject, "dynamic" ) ) {
---
---
}

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If using wordpress in-buid functions
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$term_by = get_term_by( 'slug', 'TAXONOMY_SLUG', $taxonomy );

if ( ! is_wp_error( $term_by ) && $term_by->term_id ) {
---
---
}


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Validating Sanitizing & Ecaping
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# It’s best to do the output escaping as late as possible, ideally as data is being outputted.

$safe_zipcode = intval( $_POST['my-zipcode'] );   // casts user input as an integer
$title = sanitize_text_field( $_POST['title'] );  // Strips all tags, Remove line breaks, tabs and extra white space
echo esc_html( $content ); //                     // HTML element encloses a section of data we’re outputting
echo esc_url( $great_user_picture_url );          // should be used on all URLs
echo esc_js( $value );                            // intended for inline Javascript
echo esc_attr( $stored_class );                   // can be used on everything else that’s printed into an HTML element’s attribute
echo wp_kses_post( $partial_html );               // allows all markup normally permitted in posts


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Whitelist VIP errors with // phpcs:ignore
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Found a error which cann't be solve due to a valid reason

Ex - Using a obj which have a property name start with Capital Letter

$test_var = $test_object->Test_Property;// phpcs:ignore

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Ref - https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards/wiki/Fixing-errors-for-input-data
Ref - https://vip.wordpress.com/documentation/
Ref - https://developer.wordpress.com/themes/escaping/
Ref - https://vip.wordpress.com/documentation/vip-go/
Ref - https://code.tutsplus.com/articles/data-sanitization-and-validation-with-wordpress--wp-25536
Ref - https://codex.wordpress.org/Validating_Sanitizing_and_Escaping_User_Data
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