test.php

<?php
            $conditions = [];
            $conditions[] = [\PhpOffice\PhpSpreadsheet\Style\Conditional::CONDITION_CELLIS, \PhpOffice\PhpSpreadsheet\Style\Conditional::OPERATOR_EQUAL, '="NA"', "FFFFC7CE"];
            $conditions[] = [\PhpOffice\PhpSpreadsheet\Style\Conditional::CONDITION_CONTAINSTEXT, \PhpOffice\PhpSpreadsheet\Style\Conditional::OPERATOR_CONTAINSTEXT, "+", "FFfae900"];
            $conditions[] = [\PhpOffice\PhpSpreadsheet\Style\Conditional::CONDITION_CONTAINSTEXT, \PhpOffice\PhpSpreadsheet\Style\Conditional::OPERATOR_CONTAINSTEXT, "-", "FFfae900"];
            foreach(['E:E','H:H', 'I:I'] as $column)
            {
                $conditionalStyles = $active_sheet->getStyle($column)->getConditionalStyles();
                foreach($conditions as $condition)
                {
                    // dd($condition, $column);
                    list($con, $op, $val, $color) = $condition;
                    $conditional1 = new \PhpOffice\PhpSpreadsheet\Style\Conditional();
                    $conditional1->setConditionType($con);
                    $conditional1->setOperatorType($op);
                    if($con != \PhpOffice\PhpSpreadsheet\Style\Conditional::CONDITION_CELLIS)
                    {
                        $conditional1->setText($val);
                    }
                    else
                    {
                        $conditional1->addCondition($val);
                    }
                    $conditional1->getStyle()->applyFromArray(
                        [
                            'fill' => 
                            [
                                'fillType' => \PhpOffice\PhpSpreadsheet\Style\Fill::FILL_SOLID,
                                'color' => ['argb' => $color],
                            ],
                        ]
                    );
                    $conditionalStyles[] = $conditional1;
                }
                $active_sheet->getStyle($column)->setConditionalStyles($conditionalStyles);
            }