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SlevomatCodingStandard.ControlStructures.AssignmentInCondition.md

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Pattern: Assignment in condition

Issue: -

Description

Disallows assignments in if, elseif and do-while loop conditions:

if ($file = findFile($path)) {

}

Assignment in while loop condition is specifically allowed because it's commonly used.

This is a great addition to already existing SlevomatCodingStandard.ControlStructures.DisallowYodaComparison because it prevents the danger of assigning something by mistake instead of using a comparison operator like ===.

Rule provides the following settings:

  • ignoreAssignmentsInsideFunctionCalls: ignores assignment inside function calls, like this:
if (in_array(1, $haystack, $strict = true)) {

}

Further Reading