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OperatorSpacingStandard.xml
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<documentation title="Operator Spacing"> <standard> <![CDATA[ All binary and ternary (but not unary) operators MUST be preceded and followed by at least one space. This includes all arithmetic, comparison, assignment, bitwise, logical (excluding ! which is unary), string concatenation, type operators, trait operators (insteadof and as), and the single pipe operator (e.g. ExceptionType1 | ExceptionType2 $e). ]]> </standard> <code_comparison> <code title="Valid: At least 1 space used."> <![CDATA[ if ($a === $b) { $foo = $bar ?? $a ?? $b; } elseif ($a > $b) { $variable = $foo ? 'foo' : 'bar'; } ]]> </code> <code title="Invalid: No spacing used."> <![CDATA[ if ($a===$b) { $foo=$bar??$a??$b; } elseif ($a>$b) { $variable=$foo?'foo':'bar'; } ]]> </code> </code_comparison> </documentation>