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:
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.