Displaying multidimensional array in php - php

Question

I have an array like this:
$tset = "MAIN_TEST_SET";
$gettc = "101";
$getbid = "b12";
$getresultsid = "4587879";
$users["$tset"] = array(
"testcase"=>"$gettc",
"buildid"=>"$getbid",
"resultsid"=>"$getresultsid"
);
Arrays in PHP is confusing me.
I want to display some like this:
MAIN_TEST_SET
101 b12 4587879
102 b13 4546464
103 b14 5545465
MAIN_TEST_SET3
201 n12 45454464
MAIN_TEST_SET4
302 k32 36545445
How to display this?
Thanks.

Answer 1

print_r($users)
That will print your array out recursively in an intuitive way. See the manual: http://us2.php.net/manual/en/function.print-r.php
If you want to print it in the specific way you formatted it above you're going to have to write a custom function that uses foreach looping syntax like this:
<?php
echo "<table>";
foreach($users as $testSetName=>$arrayOfTestCases){
echo "<tr><td>".$testSetName."</td></tr>";
foreach($arrayOfTestCases as $k=>$arrayOfTestCaseFields){
//$arrayOfTestCaseFields should be an array of test case data associated with $testSetName
$i = 0;
foreach($arrayOfTestCaseFields as $fieldName => $fieldValue){
//$fieldValue is a field of a testcase $arrayOfTestCaseFields
if($i == 0){
//inject a blank table cell at the beginning of each test case row.
echo "<tr><td> </td>";
$i++;
}
echo "<td>".$fieldValue."</td>";
}
echo "</tr>";
}
}
echo "</table>";
?>
Your data should be composed as follows:
$tset = "MAIN_TEST_SET";
$gettc = "101";
$getbid = "b12";
$getresultsid = "4587879";
$users[$tset] = array();
$users[$tset][] = array( "testcase"=>"$gettc",
"buildid"=>"$getbid",
"resultsid"=>"$getresultsid"
);
$users[$tset][] = ... and so forth ...

Answer 2

To fix the data structure you present (as Victor Nicollet mentions in his comment) you need something like this:
$users = array(); // Create an empty array for the users? (Maybe testsets is a better name?)
$testset = array(); // Create an empty array for the first testset
// Add the test details to the testset (array_push adds an item (an array containing the results in this case) to the end of the array)
array_push($testset, array("testcase"=>"101", "buildid"=>"b12", "resultsid" => "4587879"));
array_push($testset, array("testcase"=>"102", "buildid"=>"b13", "resultsid" => "4546464"));
// etc
// Add the testset array to the users array with a named key
$users['MAIN_TEST_SET'] = $testset;
// Repeat for the other testsets
$testset = array(); // Create an empty array for the second testset
// etc
Of course there are much more methods of creating your data structure, but this one seems/looks the most clear I can think of.
Use something like this to create a HTML table using the data structure described above.
echo "<table>\n";
foreach($users as $tsetname => $tset)
{
echo '<tr><td colspan="3">'.$tsetname.'</td></tr>\n';
foreach($tset as $test)
echo "<tr><td>".$test['testcase']."</td><td>".$test['buildid']."</td><td>".$test['resultsid']."</td></tr>\n";
}
echo "</table>\n";
The first foreach iterates over your test sets and the second one iterates over the tests in a test set.

Answer 3

For a short uncustomisable output, you can use:
print_r($users)
alternatively, you can use nested loops.
foreach($users as $key => $user) {
echo $key . "<br />"
echo $user["testcase"] . " " . $user["buildid"] . " " . $user["resultsid"];
}
If you are not outputting to html, replace the <br /> with "\n"