Question

I have a page that allows the user to add and remove text fields to a form using JavaScript.

Text fields are named field1, field2, field3, etc. and depends on how many fields the user has added

I’m trying to store all the values from my text fields into one Php variable;

I understand that i need to store them into an array first and then use implode(), but how can i specify how many inputs there are within my Php code?

Answer 1

Usually the best way to approach this is to use array-named input, as shown in the following example in the PHP docs:

<form action="" method="post">
    Nombre:  <input type="text" name="personal[nombre]" /><br />
    Email:   <input type="text" name="personal[email]" /><br />
    Cerveza: <br />
    <select multiple name="cerveza[]">
        <option value="warthog">Warthog</option>
        <option value="guinness">Guinness</option>
        <option value="stuttgarter">Stuttgarter Schwabenbräu</option>
    </select><br />
    <input type="submit" value="submit me!" />
</form>

You could use the very same name for each of the user added fields, as in:

<input type="text" id="field1" name="fields[]" />
<input type="text" id="field2" name="fields[]" />

And then just use implode as required:

$imploded_fields = implode(', ', $_POST['fields']);