当名称属性相同时，如何使用PHP获取多个输入值？

Question

I would like to know how to get the input value from all my input fields if all inputs have the same name attribute. I'm also using the FPDF library and I need to insert every value in different cells. This is the code...

$pieces = explode(" ", $description);

foreach ($_POST as $key=>$description) {

    if (substr($key,0,6) === "field_"){
        $pdf->Cell(100,10, "$description", 1, 0, "L");
        $pdf->Cell(25,10,"$description",1,0,"C");
        $pdf->Cell(25,10,"$ $description",1,0,"L");
        $pdf->Cell(0,10,"$ $description",1,1,"L");
    }
}

My HTML is the following:

<div class="input_fields_wrap" id="input_fields">
    <div class="new">
        <input class="description" maxlength="255" name="field_0" placeholder="Enter Description" type="text" value="">
        <input class="rate qty" data-rate="rate" maxlength="255" name="field_0" placeholder="0" size="5" type="text" value="">
        <input class="pack price" data-price="price" maxlength="255" name="field_0" placeholder="$ 0.00" size="5" type="text" value="">
        <input class="amount" id="amount" name="field_0" type="text">
    </div>
</div>

As you can see in my PHP I even used the explode function but I don't get good results.

This is before the PDF

And this is what the PDF looks like

Thank you!.

Answer 1

You can't get all the input fields values using the same name name="field_0". Instead make the name attribute of input fields like this, name="field[0][]".

Your HTML code should be like this:

<div class="input_fields_wrap" id="input_fields">
    <div class="new">
        <input class="description" maxlength="255" name="field[0][]" placeholder="Enter Description" type="text" value="">
        <input class="rate qty" data-rate="rate" maxlength="255" name="field[0][]" placeholder="0" size="5" type="text" value="">
        <input class="pack price" data-price="price" maxlength="255" name="field[0][]" placeholder="$ 0.00" size="5" type="text" value="">
        <input class="amount" id="amount" name="field[0][]" type="text">
    </div>
</div>

And this is how you can process the input field values in order to display them in PDF document.

$width_array = array(100, 25, 25, 0);
$pos_array = array(0, 0, 0, 1);
$align_array = array('L', 'C', 'L', 'L');
foreach ($_POST['field'][0] as $key => $description) {
    $pdf->Cell($width_array[$key],10, "{$description}", 1, $pos_array[$key], $align_array[$key]);
}

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Sidenote: Like this name="field[0][]", you might have another set of input fields which you can name them, name="field[1][]"