php: how to change string data become numeric data - php

Question

can you tell how to change this result in php and mysql script:
Model Class
Ball S
Book A
Spoon
Plate B
Box C
this is my DB:
CREATE TABLE IF NOT EXISTS `inspection_report` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`Model` varchar(14) NOT NULL,
`Serial_number` varchar(8) NOT NULL,
`Lot_no` varchar(6) NOT NULL,
`Line` char(5) NOT NULL,
`Class` char(1) NOT NULL,
`Status` varchar(6) NOT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `Model` (`Model`,`Serial_number`,`Lot_no`,`Line`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=48 ;
how if i want to show result like:
Model s a b c
Ball 1 0 0 0
Book 0 1 0 0
Spoon 0 0 0 0
Plate 0 0 1 0
Box 0 0 0 1
What's query to make this? thanks.

Answer 1

SELECT `Model`,
IF(`Class`='S', 1, 0) AS `S`,
IF(`Class`='A', 1, 0) AS `A`,
IF(`Class`='B', 1, 0) AS `B`,
IF(`Class`='C', 1, 0) AS `C`
FROM `inspection_report`

Answer 2

Your question is a little unclear, but I'm assuming you have the input data in an array mapping name to defect, and you want for each row a 1 in the appropriate column and a zero everywhere else. If so, it's just this:
$arr = array('blue' => 'S', 'red' => 'A', 'yellow' => null, 'green' => 'B', 'black' => 'C');
$defects = array_filter(array_unique(array_values($arr)));
echo "name\t";
echo implode("\t", $defects);
echo "\n";
foreach($arr as $name => $defect) {
echo "$name";
foreach($defects as $test) {
echo "\t";
echo $test == $defect ? 1 : 0;
}
echo "\n";
}

Answer 3

Very crude example, you'd probably go with HTML tables in reality.
<?php // $rows = array(array('name' => 'blue', 'class_defect' => 'S'), ...); ?>
<pre>
name s a b c
<?php
foreach ($rows as $row) {
printf('%-10s', $row['name']); // padding with spaces
foreach (array('s', 'a', 'b', 'c') as $col) {
echo (strtolower($row['class_defect']) == $col) ? 1 : 0;
echo ' '; // just padding again
}
}
?>
</pre>