如何在 PHP 中检查 foreach() 循环的状态？

Question

I need to check the status of a foreach loop after importing an sql file into a new database. I'm not sure how to do it.

//import tables into new db
$newconn = new mysqli($servername, $username, $password, $newDB);
$filename = 'tables.sql'; 
$op_data = '';
$lines = file($filename);
foreach ($lines as $line)
{
    if (substr($line, 0, 2) == '--' || $line == '')//This IF Remove Comment Inside SQL FILE
    {
        continue;
    }
    $op_data .= $line;
    if (substr(trim($line), -1, 1) == ';')//Breack Line Upto ';' NEW QUERY
    {
        $newconn->query($op_data);
        $op_data = '';
    }
}

if(foreach == SUCCESS){
echo 'Success! Gabriel escaped Negan!';
}else{
echo 'Crap! Father Gabriel died!';
}

Answer 1

If you're just wanting to run code after your foreach loop has completed then you can just put that code after the loop. The code you put after the loop will no be run until the foreach loop has finished.

foreach($lines as $line) {
    //loop code
}

//code to be run after loop ends