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Rule ternary_to_elvis_operator

Use the Elvis operator ?: where possible.

Warning

Using this rule is risky

Risky when relying on functions called on both sides of the ? operator.

Examples

Example #1

--- Original
+++ New
 <?php
-$foo = $foo ? $foo : 1;
+$foo = $foo ?  : 1;

Example #2

--- Original
+++ New
-<?php $foo = $bar[a()] ? $bar[a()] : 1; # "risky" sample, "a()" only gets called once after fixing
+<?php $foo = $bar[a()] ?  : 1; # "risky" sample, "a()" only gets called once after fixing

Rule sets

The rule is part of the following rule sets:

• @PhpCsFixer:risky

• @Symfony:risky

References

• Fixer class: PhpCsFixer\Fixer\Operator\TernaryToElvisOperatorFixer

• Test class: PhpCsFixer\Tests\Fixer\Operator\TernaryToElvisOperatorFixerTest

The test class defines officially supported behaviour. Each test case is a part of our backward compatibility promise.