php query to database returning blank results
Question
----- UPDATED
Code works when I'm running it from my schools public_html folder. However, when I create the exact same file, upload to my personal web server it does not work and only produces a blank screen. Not exactly sure what this means, maybe that I don't have permissions?
Updated Code to reflect suggestions (still not working)
-----------
Hi I'm a student learning to use php and postgres. Currently I'm just trying to open a connection from my hosted website to my database on my school's server. I'm getting a blank result with my following php file.
I put 'xxxxx' as the connection fields in order not to give away my username and password - the real file has the correct information.
My question is... is there anything wrong with this php file?
<html>
<body>
<h1>Test</h1>
<?php
$username = "xxxxx"
$password = "xxxxx";
$databasename = "xxxxx";
$hostname = "xxxxx";
$connection = pg_connect("host=$hostname dbname=$databasename user=$username password=$password") or die ("could not connect");
$query = "SELECT unit_name from units";
$result = pg_query($connection, $query) or die("ERROR: " . pg_last_error());
$row = 0;
while ($row = pg_fetch_row($result)) {
echo "$row[0]<br>\n"
};
pg_close($connection);
?>
</body>
</html>
2 answers
solution1
0 2016-03-03 05:35:36
You have to use pg_fetch_row
Try this
$query = "SELECT unit_name from units";
$result = pg_query($connection, $query) or die("ERROR: ".pg_last_error());
if(!result)
{
echo "An error occurred.\n";
exit;
}
$data = [];
while ($row = pg_fetch_row($result)) {
$data[] = $row;
}
foreach($data as $value)
{
echo $value;
}
solution2
0 2016-03-03 05:43:08
This Code success on my side! try this.
$link = mysqli_connect("YourHostname", "Your Username", "YourPassword", "YourDBName");
// Check conn
if($link === false){
die("ERROR: Could not connect. " . mysqli_connect_error());
}
$sql="/*Your SQL CODE HERE*/";
if(mysqli_query($link, $sql)){
echo "Success!";
} else{
echo "ERROR: Could not able to execute $sql. " . mysqli_error($link);
}
// close connection
mysqli_close($link);
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