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Mountains (v3.2.1) edition

Rule constant_case

The PHP constants true, false, and null MUST be written using the correct casing.

Configuration

case

Whether to use the upper or lower case syntax.

Allowed values: 'lower', 'upper'

Default value: 'lower'

Examples

Example #1

Default configuration.

--- Original
+++ New
 <?php
-$a = FALSE;
-$b = True;
-$c = nuLL;
+$a = false;
+$b = true;
+$c = null;

Example #2

With configuration: ['case' => 'upper'].

--- Original
+++ New
 <?php
 $a = FALSE;
-$b = True;
-$c = nuLL;
+$b = TRUE;
+$c = NULL;

Rule sets

The rule is part of the following rule sets:

@PSR12

Using the @PSR12 rule set will enable the constant_case rule with the default config.

@PSR2

Using the @PSR2 rule set will enable the constant_case rule with the default config.

@PhpCsFixer

Using the @PhpCsFixer rule set will enable the constant_case rule with the default config.

@Symfony

Using the @Symfony rule set will enable the constant_case rule with the default config.

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