Ответы на вопрос:
$a = -1; $b = -2; $c = 0; $count_minus = 0; if( $a < 0) {$count_minus = $count_minus + 1; } if( $b < 0) {$count_minus = $count_minus + 1; } if( $c < 0) {$count_minus = $count_minus + 1; } echo $count_minus;
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