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<?php
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function sideEffectCall(): int
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{
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echo "side effect!\n";
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return 41;
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}
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function coalesceCompoundRhs(): int
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{
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$target = 1;
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$target ??= sideEffectCall() + 1;
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return $target;
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}
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function coalesceSimpleRhs(): int
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{
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$target = 1;
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$target ??= sideEffectCall();
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return $target;
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}
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