Build SQL query from multiple arrays - PHP - php

Question

I've got an array that looks like this..
Array
(
[fm] => Array
(
[133.74] => Array
(
[base] => Array
(
[0] => 2015-09-29
[1] => 2015-09-30
)
)
[202.59] => Array
(
[base] => Array
(
[0] => 2015-10-01
)
)
)
[fmtax] => Array
(
[13.51] => Array
(
[0] => 2015-09-29
[1] => 2015-09-30
)
[20.46] => Array
(
[0] => 2015-10-01
)
)
)
and I need to build a SQL statement to insert the relevant values. I'm thinking it will need to be a unique query for each array item.
So I'll end up needing something like
$sql = "insert into mytable ('price', 'tax', 'date')
values ('133.74', '13.51', '2015-09-29')";
What I've got so far is this...
foreach ($sale['fm'] as $key => $value) {
$i=0;
$g=count($value['base']);
while($i < $g) {
echo($sale['fm'][$key]['base'][$i]."<br />");
$i++;
}
}
which does well for the "fm" key - but I'm getting hung up on how to grab the value from the second associated "fmtax" array key. I was thinking using something like current/next as it iterates through...but am kinda scratching my head on it.

Answer 1

I am assuming that fm and fmtax both have same number of elements and the order of related elements (price and tax) from fm and fmtax are same. What you can do is - store the taxes from fmtax with simple keys in this way :
$taxes = array();
$c = 0;
foreach ($sale['fmtax'] as $key => $value) {
$taxes[$c] = $key;
$c++;
}
Then you can access this new $taxes array from your own code block in this way :
$c = 0;
foreach ($sale['fm'] as $key => $value) {
//Here you have the related tax
$tax = $taxes[$c];
$i=0;
$g=count($value['base']);
while($i < $g) {
echo($sale['fm'][$key]['base'][$i]."<br />");
$i++;
}
$c++;
}