将数组的多个值插入数据库

Question

I am trying to read a file of data and insert into a table in mySQL. I have tried building an array and imploding, as well as a foreach loop like this one but only get back the first row of the table.

<?php 
$str = file_get_contents('-');
$con = mysqli_connect('-', '-', '-','-');
$dataArray = explode("|",$str);
$blahArray = array();
foreach($dataArray as $info){
            $pD = unserialize($info);
            $pD->*->*->*;
            $pL = $pD->*->*->*[0];
            $blah = $pL->BLAH;
            array_push($blahArray,$blah);       
}
foreach($blahArray as $val){
            $sql = "INSERT INTO table (BLAH)
                    VALUES('$val')";            
            mysqli_query($con,$sql);
            }
?>

I have a lot more datafields to enter but for debugging am just trying the one. Any help or suggestions would be greatly appreciated!

Answer 1

Try this:

$sql = "INSERT INTO property (APN)
                    VALUES";
foreach ($apnArray as $val) {
    $sql .= "('$val'),";
}
$sql = trim($sql, ",");
mysqli_query($con, $sql);

Answer 2

I can't say for certain what is wrong with your code, but here is a modification you can make which might tell you what is going on:

foreach($apnArray as $val) {
    $sql = "INSERT INTO property (APN) VALUES('$val')";            
    $result = mysqli_query($con, $sql);
    if (false===$result) {
        printf("error: %s\n", mysqli_error($con));
    }
}

Check for two things. First, make sure that you are in fact looping 90 times. Second, see if each INSERT query be executing with or without error.

Update:

Based on your comment, it appears that you have a primary key with a unique constraint, which is not set to autoincrement. In your INSERT query, you are only setting a value for the APN column and nothing else. This means that MySQL is using a default value (0) for this primary key. The solution to your problem is to pass in a unique value for the primary key or to set that primary key column to autoincrement.