PHP: Expects parameter to be string array given - php

Question

I am trying to read a csv file line by line and save its content in an array. I then parse the array using foreach to print each line.
However, when i try to send the variable(which according to me should be a string) to the deleteInstance method it prints as an array and not plain string.
I have issue sending this to Softlayer API since it throw me an error saying string expected but array given ? I am not sure what is wrong
a.csv
7381838
7381840
7381842
php
<?PHP
require_once dirname(__FILE__) . '/SoftLayer/SoapClient.class.php';
function readCSV($csvFile){
$file_handle = fopen($csvFile, 'r');
while (!feof($file_handle) ) {
$line_of_text[] = fgetcsv($file_handle, 1024);
}
fclose($file_handle);
return $line_of_text;
}
// Set path to CSV file
$csvFile = 'a.csv';
$csv = readCSV($csvFile);
foreach ($csv as $value) {
var_dump($value);
print_r($value);
deleteInstance($value);
}
function deleteInstance($ccid){
$apiUsername = 'xxxxx';
$apiKey = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx';
$cancelRightNow = true; //or false if you want to wait till the billing cycle ends
$cloudComputingInstanceId = $ccid;
print_r($cloudComputingInstanceId);
var_dump($cloudComputingInstanceId);
$client = SoftLayer_SoapClient::getClient('SoftLayer_Virtual_Guest', $cloudComputingInstanceId, $apiUsername, $apiKey);
$objectMask = new SoftLayer_ObjectMask();
$objectMask->billingItem;
$client->setObjectMask($objectMask);
$cci = $client->getObject();
$client = SoftLayer_SoapClient::getClient('SoftLayer_Billing_Item', $cci->billingItem->id, $apiUsername, $apiKey);
$billingItem = $client->getObject();
if ($billingItem != null) {
if ($cancelRightNow) {
$client->cancelService();
} else {
$client->cancelServiceOnAnniversaryDate();
}
}
}
?>

Answer 1

The problem is your argument to deleteInstance is an array... It looks like this:
$csv = Array(
0 => Array(0 => '7381838'),
1 => Array (0 => '7381840'),
2 => Array(0 => '7381842')
)
This is because you are parsing it as CSV which splits each line into an array based on a delimiter. This is not what you want. Instead use file to read each line into an array:
function readCSV($csvFile){
return file($csvFile);
}
$csv = readCSV('a.csv');
foreach ($csv as $value) {
// your value is now the line of the file like '7381838'
deleteInstance($value);
}

Answer 2

Try this and see what happens
foreach ($csv as $value) {
$svalue = $value[0];
var_dump($svalue);
print_r($svalue);
deleteInstance($svalue);
}