How to loop through array elements to create multi

问题:

I have a $_POST array which currently takes the following form:

 ["Area"]=> array(2) { 
    [0]=> string(5) "Title" 
    [1]=> string(5) "Title" 
    } 
 ["Issue"]=> array(2) { 
    [0]=> string(3) "111" 
    [1]=> string(7) "2222222" 
    } 
 ["Elevation"]=> array(2) { 
    [0]=> string(8) "11111111" 
    [1]=> string(7) "2222222" 
    } 
 ["Fix"]=> array(2) { 
    [0]=> string(8) "11111111" 
    [1]=> string(6) "222222" 
    } 
 ["ExpectFee"]=> array(2) { 
    [0]=> string(8) "11111111" 
    [1]=> string(5) "22222" 
    } 
 ["Outlay"]=> array(2) { 
    [0]=> string(9) "111111111" 
    [1]=> string(9) "222222222" 
    } 
 ["ExpctTime"]=> array(2) { 
    [0]=> string(9) "111111111" 
    [1]=> string(11) "22222222222" 
 } 
 ["Checkbox"]=> array(2) { 
    [0]=> string(12) "111111111111" 
    [1]=> string(11) "22222222222" 
    } 

I am currently looping through it like this...

 if ($_POST['OthProb']['Issue'] != '') {
       $table = 'tbl_customproblems';
       $kv = array();

            foreach ($_POST['OthProb'] as $array) {
                foreach ($array as $value) {
                    $kv[] = "'".$value."'";

            }
            $string = "INSERT INTO $table (AccountID, myID, Area, Issue, Elevation, Fix, ExpectFee, Outlay, ExpctTime, Checkbox) VALUES ('$_POST[AccountID]', '$_POST[myID]', ".join(", ", $kv).")";     
        }

} else {
  $string = $_SERVER['QUERY_STRING'];
}

$sql = $DBH->prepare($string);
$sql->execute();

Which almost works! It produces this...

"INSERT INTO tbl_customproblems (AccountID, PropertyID, Area, Issue, Elevation, Fix, ExpectFee, Outlay, ExpctTime, WHCheckbox) VALUES ('81', '81', 'Title', 'Title', '111', '2222222', '11111111', '2222222', '11111111', '222222', '11111111', '22222', '111111111', '222222222', '111111111', '22222222222', '111111111111', '22222222222')"

How do I amend my loop to produce seperate inserts, one for each row being passed.

回答1:

It has to be something like this:

if ($_POST['OthProb']['Issue'] != '') {
$table = 'tbl_customproblems';
$string = 'INSERT INTO $table (AccountID, myID, Area, Issue, Elevation, Fix, ExpectFee, Outlay, ExpctTime, Checkbox) VALUES (:AccountID, :myID, :Area, :Issue, :Elevation, :Fix, :ExpectFee, :Outlay, :ExpctTime, :Checkbox)';

$sql = $DBH->prepare($string);

$i = 0;
foreach ($_POST['OthProb'] as $array) {

    $sql->bindParam(':AccountID', $_POST['AccountID'], PDO::PARAM_INT);
    $sql->bindParam(':myID', $_POST['myID'], PDO::PARAM_INT);
    $sql->bindParam(':Area', $array['area'][$i], PDO::PARAM_STR); //it can also be PDO::PARAM_STR

        $sql->execute();
        $i++;
    }
}

I didn't bind all params so you have to do that your self, I hope you get the idea of a prepare statement by this example.

At a prepare statement you use PDO::PARAM_INT when you want a integer and you will be using PDO::PARAM_STR for strings. When you are not sure if it is a integer or a string you better use PDO::PARAM_STR

回答2:

I got it in the end using the following code, its probably hacky to the max and I intend to refine it in the future but it works.

if ($_POST['OthProb']['Issue'] != '') {
       $kv = array();
       // This will help control the array index
       $i = 0;
       // count the number of records in the array
       $count = count($_POST['OthProb']['Area']);
       $table = 'tbl_customproblems';

       // Loop through each index - stop before we reach the value of count.
       for ($i=0; $i < $count; $i++) {
           // Catch the data
           foreach ($_POST['OthProb'] as $value) {
                    $kv[] = "'".$value[$i]."'";       
            }
        // Do the insert!
        $string = "INSERT INTO $table (AccountID, PropertyID, Area, Issue, Elevation, Fix, ExpectFee, Outlay, ExpctTime, Checkbox) VALUES ('$_POST[AccountID]', '$_POST[PropertyID]', ".join(", ", $kv).") ";
        $sql = $DBH->prepare($string);
        $sql->execute();
        // Unset data value to prevent retention
        unset ($kv);  
        }