Combine arrays PHP - php

Question

I have tree arrays like this
$keys = array("elment1","elment1","elment2","elment1");
// This one can have duplicates values
$operator = array("=","<",">","=");
// Operators for MySql query
$queries = array("query1","query2","query3","query4");
// This one can have mixed values
I want to know how to combine this tree arrays to have a query like this:
$string = "SELECT FROM tables
WHERE
(elment1 = query1 OR elment1<query2 OR elment1=query4)
// For the group of duplicates keys
AND
elment2 > query3";
// For the non duplicates
I need this for multi-filter queries.
The user should push a button to add keys, operator and query as many times as he like.
I'm using jquery to create form elements, and each() function to generate 3 arrays, before posting all to php.

Answer 1

You asked a question in French, I'll answer in English and you can use Google Translate if you need a translation. [Utilisez Google Translate pour traduire cette réponse si vous voulez.]
First of all, you'll need to concatenate the pieces. Pay attention to the mysql_real_escape_string, which makes the whole operation a little bit safer.
$joined = array();
for($i = 0, $size = sizeof($keys); $i < $size; ++$i) {
$joined[$i] = $keys[$i] . " " . $operator[$i] . " '" . mysql_real_escape_string($queries[$i]) . "'";
}
Then you can use implode:
$string = 'SELECT [...] WHERE (' . implode(' OR ', $joined) . ')';

Answer 2

Bonjour,
Here is the code. tried and tested.
Voila le code... essayer avec succé
$keys = array("elment1","elment1","elment2","elment1");
// this one can have duplicates values ,
$operator = array("=","<",">","=");
// operators for Mysql query
$queries = array("query1","query2","query3","query4");
// mixtes values
$joined = array();
for($i = 0, $size = sizeof($keys); $i < $size; ++$i)
{
$joined[$keys[$i]][] = $keys[$i] . $operator[$i] . $queries[$i];
}
foreach ($joined as $key => &$value)
{
$value = implode(' OR ', $value);
$value = "(" . $value . ")";
}
$query = implode(' AND ', $joined);
print $query;