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PHP Static Properties

• Static properties can be called directly - without creating an instance of a class.
• Static properties are declared with the static keyword:
• To access a static property use the class name, double colon (::), and the property name:

3.14159

<?php
// define Static Property
class pi {
  public static $value = 3.14159;
}

// Get static property
echo pi::$value;
?>

Here, we declare a static property: $value. Then, we echo the value of the static property by using the class name, double colon (::), and the property name (without creating a class first).