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Inserting array values into a db table


litebearer

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Have 2 arrays and am attempting to insert them into a table. The new rows are created BUT they only contain the non-array variables

 

my code...

$count1 = count($large_images);

$query = "INSERT INTO images (image, thumb, when_up, who) VALUES ('$large_images[$i]', '$small_images[$i]', '$when_up', '$by_who')";

$i=0;

while($i<$count1) {
mysql_query($query);
$i++;
}

 

ides??

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$count1 = count($large_images);

$i=0;

while($i<$count1) {



mysql_query("INSERT INTO images (image, thumb, when_up, who) VALUES (" . $large_images[$i] . ", " . $small_images[$i] . ", '$when_up', '$by_who')");



$i++;
}

 

That should work just fine

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Your $query variable is assigned a value, once, which is both before $i has been defined and it is before the loop.

 

The while(){} loop just keeps using the same string that $query was assigned.

 

You need to put the $query = "...." assignment statement inside of the loop if you want it to be evaluated with different values of $i.

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a little tweaking worked...

$i=0;
while($i<$count1) {
$query = "INSERT INTO images (image, thumb, when_up, who) VALUES ('" . $large_images[$i] . "', '" . $small_images[$i] . "', '$when_up', '$by_who')";
mysql_query($query);
$i++;
}

 

Thank you :)

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Do NOT do queries within loops. It creates a huge overhead on the server. You can process multiple inserts in a single query in the format

INSERT INTO table (fieldA, fieldB, fieldC)
VALUES ('val-1A', 'val-1B', 'val-1C'), ('val-2A', 'val-2B', 'val-2C'), ('val-3A', 'val-3B', 'val-3C') 

 

For your purposes:

$count1 = count($large_images);

//Create array of value statements
$values = array();
for($i=0; $i<$count1; $i++)
{
    $values[] = "('{$large_images[$i]}', '{$small_images[$i]}', '{$when_up}', '{$by_who}')";
}

//Create single query to perform all inserts
$query = "INSERT INTO images (image, thumb, when_up, who) VALUES " . implode(', ', $values);
mysql_query($query);

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