php use 1 sql statement - php

Question

How can I make my queries short?
I have the same query multiple times on my page on different sections.
Here's the code to see what I mean:
//sql for dropdown contact type
$sql_getContactType1 = $db->query('SELECT * FROM tb_phone_contact_type');
$sql_getContactType2 = $db->query('SELECT * FROM tb_phone_contact_type');
$sql_getContactType3 = $db->query('SELECT * FROM tb_phone_contact_type');
Output in dropdown:
<select name="contact_type1" class="form-control">
<?php
while($row = $sql_getContactType1->fetch_assoc())
{
echo '<option value="'.$row[id].'">'.$row[d_name] . '</option>';
}
?>
</select>
<select name="contact_type2" class="form-control">
<?php
while($row = $sql_getContactType2->fetch_assoc())
{
echo '<option value="'.$row[id].'">'.$row[d_name] . '</option>';
}
?>
<select name="contact_type3" class="form-control">
<?php
while($row = $sql_getContactType3->fetch_assoc())
{
echo '<option value="'.$row[id].'">'.$row[d_name] . '</option>';
}
?>
</select>
How can I achieve it in just one query statement on my output?

Answer 1

Do the query once, put the results in an array, and then use that array in each <select>.
<?php
$sql_getContactType = $db->query('SELECT id, name FROM tb_phone_contact_type');
$contact_types = array();
while ($row = $sql_getContactType->fetch_assoc()) {
$contact_types[] = $row;
}
?>
<select name="contact_type1" class="form-control">
<?php
foreach($contact_types as $row)
{
echo '<option value="'.$row[id].'">'.$row[d_name] . '</option>';
}
?>
</select>
<select name="contact_type2" class="form-control">
<?php
foreach($contact_types as $row)
{
echo '<option value="'.$row[id].'">'.$row[d_name] . '</option>';
}
?>
<select name="contact_type3" class="form-control">
<?php
foreach($contact_types as $row)
{
echo '<option value="'.$row[id].'">'.$row[d_name] . '</option>';
}
?>
</select>

Answer 2

Why using 3 select? u can use one they do same job.
For selects you must use foreach.

Answer 3

First, get all data in a single query. Then you can add if inside your loop to determine the contact type to show. This example code may help you:
$contacts = $db->query('SELECT * FROM tb_phone_contact_type')->fetch_assoc();
<select name="contact_type1" class="form-control">
<?php
foreach ($contacts as $contact) {
// fit this code by the `type` you want to show
if ($contact['type'] === 'CONTACT_TYPE_1') {
echo '<option value="'.$contact['id'].'">'.$contact['d_name'].'</option>';
}
}
?>
</select>
<select name="contact_type2" class="form-control">
<?php
foreach ($contacts as $contact) {
// fit this code by the `type` you want to show
if ($contact['type'] === 'CONTACT_TYPE_2') {
echo '<option value="'.$contact['id'].'">'.$contact['d_name'].'</option>';
}
}
?>
<select name="contact_type3" class="form-control">
<?php
foreach ($contacts as $contact) {
// fit this code by the `type` you want to show
if ($contact['type'] === 'CONTACT_TYPE_3') {
echo '<option value="'.$contact['id'].'">'.$contact['d_name'].'</option>';
}
}
?>
</select>

Answer 4

Execute query and store data into array... You can use array multiple times..
$sql_getContactType1 = $db->query('SELECT * FROM tb_phone_contact_type');
while($row = $sql_getContactType1->fetch_assoc())
{
$row_info[] = $row;
}
foreach ($row_info as $info) {
echo "Id: {$info[id]}<br />"
. "Name: {$info[name]}<br />"
. "Code: {$info[code]}<br /><br />";
}

Answer 5

SQL for dropdown contact type
<?php
$sql_getContactType1 = $db->query('SELECT * FROM tb_phone_contact_type');
while($row = $sql_getContactType1->fetch_assoc())
{
$row_data[] = $row;
}
?>
Output in dropdown :
<select name="contact_type1" class="form-control">
<?php
foreach($row_data as $row_val)
{
echo '<option value="'.$row_val[id].'">'.$row_val[d_name] . '</option>';
}
?>
</select>
<select name="contact_type2" class="form-control">
<?php
foreach($row_data as $row_val)
{
echo '<option value="'.$row_val[id].'">'.$row_val[d_name] . '</option>';
}
?>
<select name="contact_type3" class="form-control">
<?php
foreach($row_data as $row_val)
{
echo '<option value="'.$row_val[id].'">'.$row_val[d_name] . '</option>';
}
?>
</select>
Use above the code if you need 3 dropdown on a page.