Formatting output from mysql (array of values) - php

Question

I am running a sql query to output value of field, which has array of values. How can I format those value using php/css/html.
This is the output I get from following code:
$rb = $wpdb->get_results("select value
from wp_rg_lead_detail
where field_number = 33
and lead_id =
(select distinct lead_id
from wp_rg_lead_detail
where value = '".$uname."')
");
foreach( $rb as $r){
echo $r->value . "<br/> ";
}
MySQL Output Value:
a:2:{
i:0;a:2:{s:10:"First Name";s:6:"testb1";s:9:"Last Name";s:5:"test1";}
i:1;a:2:{s:10:"First Name";s:6:"testb2";s:9:"Last Name";s:5:"test2";}
}
Desired Output:
FirstName LastName
testb1 test1
testb2 test2
Can someone help me with this?

Answer 1

To start, you'll need to remove the new lines and tabs from your serialized data before it will unserialize() correctly:
$data = unserialize('a:2:{i:0;a:2:{s:10:"First Name";s:6:"testb1";s:9:"Last Name";s:5:"test1";}i:1;a:2:{s:10:"First Name";s:6:"testb2";s:9:"Last Name";s:5:"test2";}}');
You can output the results you want with a simple loop like this:
// Keep track of whether the headers have been output yet
$headersOutput = false;
foreach ($data as $row) {
// If the headers haven't been output yet
if (!$headersOutput) {
// Output the headers only
echo implode("\t", array_keys($row)), PHP_EOL;
// Update variable so it won't happen again
$headersOutput = true;
}
// Output the values
echo implode("\t", array_values($row)), PHP_EOL;
}
Example:
First Name Last Name
testb1 test1
testb2 test2
You can swap the "\t" tab characters for whatever you want to delimit columns with, and swap PHP_EOL for what should delimit new lines.
If you want to add this data to an array (e.g. to write to a CSV instead) then just use $output[] = implode... instead of echo and use $output at the end.