print duplicate records once from an array into a table

[alex.gio]

[ Newbie Alert ] 

Hi

 

i have an array of 39 arrays. Only 5 are shown below so that you have an idea before i ask my question.

<?
array(39) 
{
[0]=> array(3) { [0]=> string(18) "unit name 1" [1]=> string(9) "category name 1" [2]=> string(20) "Course 1" }

[1]=> array(3) { [0]=> string(54) "unit name 2" [1]=> string(15) "category name 2" [2]=> string(20) "Course 1" }

[2]=> array(3) { [0]=> string(29) "unit name 3" [1]=> string(15) "category name 2" [2]=> string(20) "Course 1" } 

[3]=> array(3) { [0]=> string(64) "unit name 4" [1]=> string(30) "category name 3" [2]=> string(20) "Course 2" }

[4]=> array(3) { [0]=> string(57) "unit name 5" [1]=> string(24) "category name 1" [2]=> string(20) "Course 1" }

[5]=> array(3) { [0]=> string(50) "unit name 6" [1]=> string(24) "category name 4" [2]=> string(20) "Course 2" }
}

 

i want a php solution to print category names in table headers , unit names in table rows and course name(s) in table caption.I have tried foreach loop but how to remove duplicate entries as you can see category name 1 and 2 will become two separate headers instead of one and same is the case with Course 1 and 2.

i have googled but could'nt find any solution. i don't want to remove duplicate entries , all i want to display them once in a table as described above.

[sasa]

try

<?php
$test = array(
    array("unit name 1", "category name 1", "Course 1"),
    array("unit name 2", "category name 2", "Course 1"),
    array("unit name 3", "category name 2", "Course 1"),
    array("unit name 4", "category name 3", "Course 2"),
    array("unit name 5", "category name 1", "Course 1"),
    array("unit name 6", "category name 4", "Course 2")
);
foreach ($test as $data){
    $tmp[$data[2]][$data[1]][] = $data[0];
}
foreach ($tmp as $course => $data){
    echo $course, '<br /><table border="3">';
    $tbl = array();
    $i = 0;
    foreach ($data as $cat => $unit){
        $i++;
        $tbl [0][$i] = $cat;
        $tbl[1][$i] = implode('<br />', $unit);
    }
    echo '<tr><td>', implode('</td><td>', $tbl[0]),'</td></tr>';
    echo '<tr><td>', implode('</td><td>', $tbl[1]),'</td></tr>';
    echo '</table><br />';
}
?>

[alex.gio]

sasa

 

You are not only a PHP Guru but also a great person who took time to write complete code for this.

i am very grateful to you.

Thanks a lot.

 

Alex