Rule `function_to_constant`¶

Replace core functions calls returning constants with the constants.

Warning¶

Risky when any of the configured functions to replace are overridden.

List of function names to fix.

Allowed values: a subset of ['get_called_class', 'get_class', 'get_class_this', 'php_sapi_name', 'phpversion', 'pi']

Default value: ['get_called_class', 'get_class', 'get_class_this', 'php_sapi_name', 'phpversion', 'pi']

Default configuration.

--- Original
+++ New
 <?php
-echo phpversion();
-echo pi();
-echo php_sapi_name();
+echo PHP_VERSION;
+echo M_PI;
+echo PHP_SAPI;
 class Foo
 {
     public function Bar()
     {
-        echo get_class();
-        echo get_called_class();
+        echo __CLASS__;
+        echo static::class;
     }
 }

With configuration: ['functions' => ['get_called_class', 'get_class_this', 'phpversion']].

--- Original
+++ New
 <?php
-echo phpversion();
+echo PHP_VERSION;
 echo pi();
 class Foo
 {
     public function Bar()
     {
         echo get_class();
-        get_class($this);
-        echo get_called_class();
+        static::class;
+        echo static::class;
     }
 }

The rule is part of the following rule sets:

@PhpCsFixer:risky: Using the @PhpCsFixer:risky rule set will enable the function_to_constant rule with the default config.
@Symfony:risky: Using the @Symfony:risky rule set will enable the function_to_constant rule with the default config.