foreach loop for many array insert values

You can use SPL's MultipleIterator and prepared statements for that for that.

<?php
$array1 = [ 'a1','a2','a3' ];
$array2 = [ 'b1','b2','b3' ];
$array3 = [ 'c1','c2','c3' ];

$mi = new MultipleIterator;
foreach( array($array1,$array2,$array3) as $a) {
    $mi->attachIterator( new ArrayIterator($a) );
}

//$pdo = new PDO( ..., array(PDO::ATTR_ERRMODE=>PDO::ERRMODE_EXCEPTION));
//$stmt = $pdo->prepare('INSERT INTO foo (x,y,z) VALUES (?,?,?)');   
foreach( $mi as $rec ) {
    //$stmt->execute( $rec );
    echo join(', ', $rec), "\r\n";
}

prints

a1, b1, c1
a2, b2, c2
a3, b3, c3

Suppose you have 5 arrays as follows:

$a = array(1,2,3);
$b = array(11,22,33);
$c = array(11,22,33);
$d = array(11,22,33);
$e = array(11,22,33);

create array of fields ;

$fields = array('field1','field2',...);

You can form the data string as follow,

$counter =0;
$str = array();
for($i=0;$i<count($a);$i++)
{
  $str []= "$fields[counter] = '$a[$i]'";
  $counter++;
   $str []= "$fields[counter] = '$b[$i]'";
    $counter++;
  $str []= " $fields[counter] = '$c[$i]'";
    $counter++;
  $str []= "$fields[counter]= '$d[$i]'";
    $counter++;
  $str []= "$fields[counter]= '$e[$i]'";
    $counter++;

}
 $data = implode(',',$str);

Then execute sql query

insert into 'table_name' $data 

Since, same nos of elements are available in each array. So, loop will run for each array for same nos of time.

First, find size of array any array like.

$arraySize=sizeof($arr1); I assumed $arr1 as Ist array.

Secondly, Now loop it.

for($i=0;$i<$arraySize;$i++)
{
    $arr1=$arr1[$i];
    $arr2=$arr2[$i];
    $arr3=$arr3[$i];
    $arr4=$arr4[$i];
    $arr5=$arr5[$i];

    $InsertQuery="INSERT INTO TableName SET field1='$arr1', field2='$arr2', field3='$arr3',field4='$arr4',field5='$arr5'";
    //Execute Your Query Here
}

First count the items in an array.

As you mentioned that there are same number of elements in all the three arrays. Therefore we only need to count number of arrays in any one array. Lets take $array1 here. Use count($array1) to give element count. Suppose it gives 3 as the count.

Now loop 3 times like below.

for($i = 0; $i < count($array1); $i++){
    // QUERY HERE
    insert into sometable (field1, field2, field3) VALUES ($array1[$i], $array2[$i], $array3[$i]);
}