PHP crosstab formatting from array - php

Question

Hi I have a PHP array like this
$table=array();
$subject_names=array();
$subject_names[118]="English";
$subject_names[108]="Software Engeneering";
$table['Josh'][118]['int'] =55;
$table['Josh'][118]['ext'] = 10;
$table['Josh'][108]['int'] =45;
$table['Josh'][108]['ext'] = 12;
$table['Matt'][118]['int'] =45;
$table['Matt'][118]['ext'] = 12;
$table['Matt'][108]['int'] =50;
$table['Matt'][108]['ext'] = 15;
Here 118 and 108 are subject_id I am trying to format it like this
student | English | Software Engeneering |
| int. mark | ext. mark | int. mark | ext. mark |
___________________________________________________________
Josh | 55 | 10 | 45 | 12
Matt | 45 | 12 | 50 | 15
I tried
echo "Student Name\t";
foreach($subject_names as $sub_name)
{
echo "$sub_name\t";
}
echo "<br>";
foreach($table as $sname => $subjects){
echo "$sname\t";
foreach($subjects as $subject_name => $types)
{
foreach($types as $marks)
{
echo "$marks\t";
}
}
echo "<br>";
}
It working fine but if I change the position of array item of table like
$table['Josh'][118]['int'] =55;
$table['Josh'][108]['int'] =45;
$table['Josh'][118]['ext'] = 10;
$table['Josh'][108]['ext'] = 12;
It won't give a correct result. Is there anyway to assure that the result are always correct.
Thank you for your any help and suggestions

Answer 1

Here's a solution I wrote for your request, picking the scores using the $subject_names as control rather than the students' scoresheet (I hope you get what I mean after going through the codes)...
$table=array();
$subject_names=array();
// notice that I switched subject order, just to show that subjects control the marks displayed thereby ensuring consistent score mapping
$subject_names[108]="Software Engeneering";
$subject_names[118]="English";
// and I'm using the rearranged scores (the sample use-case you specified in the question that distorts your output)
$table['Josh'][118]['int'] =55;
$table['Josh'][108]['int'] =45;
$table['Josh'][118]['ext'] = 10;
$table['Josh'][108]['ext'] = 12;
$table['Matt'][118]['int'] =45;
$table['Matt'][118]['ext'] = 12;
$table['Matt'][108]['int'] =50;
$table['Matt'][108]['ext'] = 15;
echo "Student Name\t";
foreach($subject_names as $sub_name)
{
echo "$sub_name\t";
}
echo "\n";
// proposed solution:
foreach($table as $sname => $subjects){
echo "$sname\t";
foreach ($subject_names as $subject_id => $name) {
foreach ($subjects[$subject_id] as $mark) {
echo "$mark\t";
}
}
echo "\n";
}
Here's the output of the script above...
Student Name Software Engeneering English
Josh 45 12 55 10
Matt 50 15 45 12
Running the same data through the script provided in the question, here's the output (distorted)...
Student Name Software Engeneering English
Josh 55 10 45 12
Matt 45 12 50 15
P.S: 'Engeneering' should be 'Engineering'
I hope I've been helpful.
Cheers!