How to loop a data in php [duplicate]

问题

I want to loop my data Like this

Like this

Not like this

My Controller:

function bills($patient_id){
    $data['payments'] = $this->model_patient->getpayments($patient_id);
    $this->load->view('includes/header');
    $this->load->view('billing', $data);
    $this->load->view('includes/footer');
}

My Model: // joining my 3 tables, i want to display the procedures made by this patients and all the payments made.

function getpayments($patient_id){
    $this->db->select('*');
    $this->db->from('treatmentrecord as tr');
    $this->db->join('patientprofile as pr','pr.patient_id = tr.patient_id');
    $this->db->join('billedrecord as br','br.treatment_id = tr.treatment_id');
    $this->db->where('tr.patient_id', $patient_id);

    $query = $this->db->get();

    return $query->result();
}

My View:

<table>
<thead>
    <tr>
        <td>Procedures</td>
        <td>Payments</td>
    </tr>
</thead>
<?php foreach ($payments as $payments): ?>

<tbody>
    <tr>
        <td><?php echo $payments->procedures; ?></td>
        <td><?php echo $payments->bill_paid; ?></td>
    </tr>
</tbody>
<?php endforeach ?>

</table>

I hope someone can help me with this.

OP: Array( [0] => stdClass Object ( [treatment_id] => 1 [procedures] => ProcedureName1 [patient_id] => 1 [bill_id] => 3 [bill_paid] => 500 )

[1] => stdClass Object
    (
        [treatment_id] => 5
        [procedures] => ProcedureName3
        [patient_id] => 1
        [bill_id] => 4
        [bill_paid] => 2323
    )

[2] => stdClass Object
    (
        [treatment_id] => 1
        [procedures] => ProcedureName1
        [patient_id] => 1
        [bill_id] => 5
        [bill_paid] => 2555
    )

[3] => stdClass Object
    (
        [treatment_id] => 6
        [procedures] => ProcedureName2
        [patient_id] => 1
        [bill_id] => 6
        [bill_paid] => 2555
    )

[4] => stdClass Object
    (
        [treatment_id] => 1
        [procedures] => ProcedureName1
        [patient_id] => 1
        [bill_id] => 7
        [bill_paid] => 23232
    )

[5] => stdClass Object
    (
        [treatment_id] => 5
        [procedures] => ProcedureName3
        [patient_id] => 1
        [bill_id] => 8
        [bill_paid] => 2323
    )

)

回答1:

First sort the $payments with respect to procedures like below:

Snippet:

usort($payments,function($a,$b){
    return strcmp($a->procedures,$b->procedures);
});

Now, you can take help of the index of the element while looping. So if it's first index or name doesn't match with previous index, just print it, else print an empty string.

Snippet:

<table>
<thead>
    <tr>
        <td>Procedures</td>
        <td>Payments</td>
    </tr>
</thead>
<?php foreach ($payments as $index => $payment): ?>


<tbody>
    <tr>
        <td><?= $index === 0 || $payment->procedures != $payments[$index - 1]->procedures  ? $payment->procedures : ''; ?></td>
        <td><?= $payment->bill_paid; ?></td>

    </tr>


</tbody>
<?php endforeach; ?>

回答2:

controller

function bills($patient_id){
    $payments = $this->model_patient->getpayments($patient_id);

    $result = array();
        foreach ($payments as $element) {
            $result[$element->treatment_id][] = $element;
        }

    $data['payments'] = $result;
    $this->load->view('includes/header');
    $this->load->view('billing', $data);
    $this->load->view('includes/footer');
}

view

<table>
        <thead>
            <tr>
                <td>Procedures</td>
                <td>Payments</td>
            </tr>
        </thead>
        <tbody>
            <?php
            foreach ($payments as $index => $payment) {
                foreach ($payment as $key => $pay) {
                    ?>
                    <tr>
                        <td>
                            <?php
                            if ($key == 0) {
                                echo $pay->procedures;
                            }
                            ?>
                        </td>
                        <td><?php echo $pay->bill_paid; ?></td>
                    </tr>
                    <?php
                }
            }
            ?>
        </tbody>
    </table>

来源：https://stackoverflow.com/questions/58889416/how-to-loop-a-data-in-php

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