Question

I’m trying to create a INSERT statement for every row in a PHPExcel object. As I’ve struggled to iterate across the column (ie. go B1 C1 D1, get the values, and put them into an array), I’ve opted to get all the values for each column and put them into a multi-dimensional array that looks like this:

Array
(
    [foo] => Array
        (
            [0] => 250
            [1] => 247
            [2] => 279
            [3] => 249
        )

    [bar] => Array
        (
            [0] => AM PROV
            [1] => AM PROV
            [2] => AM PENS
            [3] => AM PROV
        )

    [schoo] => Array
        (
            [0] => xxxx
            [1] => yyy
            [2] => zzz
            [3] => aaa
        )
)

I want to merge each of the arrays so that all the data at index 0 is in one array, etc. I’ve built a generic tool to allow you to select the columns you want from an uploaded spreadsheet. It needs to first merge the column data into a single array and then it should generate INSERT statements for each of the arrays. So the final deliverable is this:

INSERT INTO (foo, bar, schoo) VALUES (250, "AM PROV", "xxxx");

All help appreciated.

UPDATE: Hey all, thank you very much for your answers. I finally managed to get it working using row and cell iterators as per Mark’s suggestion and it’s working. I have a separate issue with it now, but I think it’s something I can solve. Thanks again.

Answer 1

<?php
$uberArray = array(
    "foo" => array(
        0 => 250,
        1 => 247,
        2 => 279,
        3 => 249,
    ),
    "bar" => array(
        0 => "AM PROV",
        1 => "AM PROV",
        2 => "AM PENS",
        3 => "AM PROV",
    ),
    "schoo" => array(
        0 =>  "xxxx",
        1 =>  "yyy",
        2 =>  "zzz",
        3 =>  "aaa",
    )
);

$yourMysqlLink = mysql_connect('localhost', 'user', 'pass');
mysql_query('SET NAMES utf8'); // Adjust according to your encoding

$colNames = array_keys($uberArray);
$stringCols = array('bar', 'schoo');
$sqlInsertStr = 'INSERT INTO `your_table` (`'.implode('`, `', $colNames)."`) VALUES \n";

$rows = array();
// Not really for iterating the first array, we just need a loop
foreach ($uberArray[$colNames[0]] as $k => $v) {
    $vals = array();
    foreach ($colNames as $v2) {
        $val = $uberArray[$v2][$k];
        if (in_array($v2, $stringCols)) {
            $val = "'".mysql_real_escape_string($val, $yourMysqlLink)."'";
        }
        $vals[] = $val;
    }
    $rows[] = "\t(".implode(', ', $vals).")";
}
$sqlInsertStr .= implode(",\n", $rows).';';

echo '<pre style="clear:both;">'.$sqlInsertStr.'</pre>'; ;

Note that you may need to do a few adjustments for performance reasons, if $uberArray is big (e.g. splitting the insert string into chunks). Or you can convert the data to CSV and use MySQL LOAD DATA INFILE method, which is real fast.