How to turn a string into a select with PHP?

Question

After a SQL i have how to return this record:

// Dados
$cores = "amarelo, branco, azul, verde";

I would like to set up a select where the content of $cores as follows:

<select name="">
    <option value="amarelo">amarelo</option>
    <option value="branco">branco</option>
    <option value="azul">azul</option>
    <option value="verde">verde</option>
</select>

Answer 1

Use explode to transform the string into an array, it is necessary to pass a delimiter which in this case is ,(comma). If the value of the description is the same as value, just put the value of the variable only between <option></option>.

<?php
$cores = "amarelo, branco, azul, verde";

$arr = explode(',', $cores);

echo '<select name="cores">';
foreach($arr as $item){
    echo '<option>'. trim($item) .'</option>';
}

echo '</select>';

Example with form