Using WordPress ‘dashboard_php_nag_class()’ PHP function

The dashboard_php_nag_class() WordPress PHP function is used to add an additional class to the PHP nag if the current version is insecure. It returns an array of meta box classes.

Table of contents

Usage

Here’s a simple way to use the dashboard_php_nag_class() function. Assume we have an array of classes named $classes.

$classes = array("class1", "class2", "class3");
$classes = dashboard_php_nag_class($classes);

In this example, the function would add an additional class to the PHP nag in the array $classes if the current version is insecure.

Parameters

$classes (string, required) – An array of meta box classes.

More information

See WordPress Developer Resources: dashboard_php_nag_class

Examples

Add an additional class to the PHP nag

This example shows how the dashboard_php_nag_class() function can add an additional class to PHP nag. We will begin with an array of classes and apply the function to it.

$classes = array("class1", "class2", "class3"); // define your array of classes
$classes = dashboard_php_nag_class($classes); // add an additional class to PHP nag if the current version is insecure

Checking if a class has been added

This example checks if an additional class has been added to the PHP nag.

$classes = array("class1", "class2", "class3"); 
$classes = dashboard_php_nag_class($classes); 

if (in_array('insecure', $classes)) { 
  echo "The current PHP version is insecure!";
}

Adding a new class to the array

In this example, we will add a new class to the array and check if the function adds the ‘insecure’ class.

$classes = array("class1", "class2", "class3", "newClass"); 
$classes = dashboard_php_nag_class($classes); 

if (in_array('insecure', $classes)) { 
  echo "The current PHP version is insecure!";
}

Checking the length of the array

This example checks the length of the array after applying the function.

$classes = array("class1", "class2", "class3"); 
$classes = dashboard_php_nag_class($classes); 

echo count($classes);

Outputting all classes

This example outputs all classes in the array after applying the function.

$classes = array("class1", "class2", "class3"); 
$classes = dashboard_php_nag_class($classes); 

foreach($classes as $class) {
  echo $class . "\n";
}