Rule `single_quote`

Convert double quotes to single quotes for simple strings.

Configuration

Whether to fix double-quoted strings that contains single-quotes.

Allowed types: bool

Default value: false

Default configuration.

--- Original
+++ New
 <?php

-$a = "sample";
+$a = 'sample';
 $b = "sample with 'single-quotes'";

With configuration: ['strings_containing_single_quote_chars' => true].

--- Original
+++ New
 <?php

-$a = "sample";
-$b = "sample with 'single-quotes'";
+$a = 'sample';
+$b = 'sample with \'single-quotes\'';

The rule is part of the following rule sets: