Input and output format with PHP and SQLSRV - php

Question

I have a fairly specific scenario that I'm struggling with. The frustration is that it shouldn't even be complicated!
I have a SQL database and I'm connecting to it using PHP + SQLSRV. The database structure is quite straight forward and currently has 2 varchar columns (ColumnA and ColumnB for this example).
My task is to read the data from this table, allow the values to be edited in a form and write back to the database. This part is easy enough and is all working.
The challenge now is that the database values need to be written to my (currently empty) values.php file in the following format.
<?php
$output = array (
"Val1" => 'aaa',
"Val2" => 'bbb',
"Val3" => 'ccc',
);
?>
Ideally, I'd like this to be done at the time of the save to database command which I can do as part of an AJAX success process so that part shouldn't be an issue
I started working on the following process;
<?php
$sql = "SELECT ColumnA, ColumnB FROM Table";
$stmt = sqlsrv_query( $conn2, $sql );
while( $row = sqlsrv_fetch_array( $stmt, SQLSRV_FETCH_ASSOC) ) {
$test[]= array($row['ColumnA'] ." => '". $row['ColumnB']."',");
$values = implode(PHP_EOL,$test);
}
$content = '<?php
$output = array ("'.$values.'");
?>';
file_put_contents("c:/jjj/values.php", $content);
?>
This gives me a lot of "Array to string conversion" errors and the file gets populated with;
<?php
$output = array ("
Array
Array
);
?>
Where am I going wrong here?
EDIT
After the various comments below, the current code reads as;
<?php
$sql = "SELECT ColumnA, ColumnB FROM Table";
$stmt = sqlsrv_query( $conn2, $sql );
$test = [];
while( $row = sqlsrv_fetch_array( $stmt, SQLSRV_FETCH_ASSOC) ) {
$test[] = [$row['ColumnA'] => $row['ColumnB']];
}
$content = "<?php" . PHP_EOL;
$content .= "\t" . '$output = [' . PHP_EOL;
foreach($test as $key => $value) {
$content .= "\t\t\"{$key}\" => \"{$value}\"," . PHP_EOL;
}
$content .= "\t];" . PHP_EOL;
$content .= "?>";
file_put_contents("c:/jjj/values.php", $content);
?>
This results in 3 Array to string conversion errors (One for each row) and an output file that looks like this:
<?php
$output = [
"0" => "Array",
"1" => "Array",
"2" => "Array",
];
?>
I still can't find a way to export my DB table to a file in the correct format using PHP.

Answer 1

I think this will come closer to what you want:
To echo tabs as well you could use \t within the double quotes
$content = "<?php" . PHP_EOL;
$content .= "\t" . '$output = [' . PHP_EOL;
foreach($test as $key => $value) {
foreach ($value as $subkey => $subvalue) {
$content .= "\t\t\"{$subkey}\" => \"{$subvalue}\"," . PHP_EOL;
}
}
$content .= "\t];" . PHP_EOL;
$content .= "?>";