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@NogDogNov 13.2021 — #Firstly, you need to pass your
Secondly, you can leverage
Thirdly, might as well output it as a table, since it's tabular data. :)
Oh, fourthly, assuming you're using a version of PHP that's not horribly out of date, you can use a shorter array notation:
declaring and printing a matrix, debugging
Hello. Here is my code:
[code]
<!DOCTYPE html>
<html>
<head>
<title>hey I am a title</title>
</head>
<body>
<?php
$matrix=array(
array(1,2,3),
array(4,5,6),
array(7,8,9)
);
function writeMatrix(){
for($i=0;$i<=2;$i++){
echo “xA”;
for($j=0;$j<=2;$j++){
echo $matrix[$i][$j].” “;
}
}
}
writeMatrix();
//echo $matrix[1][1];
?>
</body>
</html>
Could you please help me to find a mistake? The code doesn’t output anything. Thank you.
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@NogDogNov 13.2021 — #Firstly, you need to pass your $matrixSecondly, you can leverage
foreach()Thirdly, might as well output it as a table, since it's tabular data. :)
[code=php]
<!DOCTYPE html>
<html>
<head>
<title>hey I am a title</title>
</head>
<body>
<?php
$matrix=array(
array(1,2,3),
array(4,5,6),
array(7,8,9)
);
function writeMatrix($matrix) // add function parameter
{
foreach ($matrix as $row) {
echo "<tr>";
foreach ($row as $element) {
echo "<td>$element</td>";
}
echo "</tr>n";
}
}
echo "<table>n";
writeMatrix($matrix); // call function with new parameter
echo "</table>";
?>
</body>
</html>
[/code]Oh, fourthly, assuming you're using a version of PHP that's not horribly out of date, you can use a shorter array notation:
[code=php]
$matrix=[
[1,2,3],
[4,5,6],
[7,8,9]
];
[/code]