Array php and database mysql saving datas - php

Question

I'm having trouble with an array. It actually appears on a page: a form of several lines. Each line corresponds to a record in the database and so they all have a common denominator.
More thanks to javascript I can add fields on the fly.
The trouble I'm having is when recording data. In fact I thought at first I should delete everything, and then insert so I just the following query:
<?php if(isset($_POST['enreg']))
{
foreach($_POST['data'] as $data){
if (!empty($data['code_s'])){
$sql2="DELETE FROM scenarii WHERE code_s='".mysql_real_escape_string($_GET['code_s'])."'";
mysql_query($sql2) or die(__LINE__.mysql_error().$sql2);
$sql7 = '
INSERT INTO scenarii SET
code_s = "'.mysql_real_escape_string($data['code_s']).'",
titre = "'.mysql_real_escape_string($data['titre']).'",
action = "'.mysql_real_escape_string($data['action']).'",
libelle = "'.mysql_real_escape_string($data['libelle']).'",
jour = "'.mysql_real_escape_string($data['jour']).'"' ;
mysql_query($sql7) or die(__LINE__.mysql_error().$sql7);
}
}
}
?>
The worries is that the deleted information is not stored again (though they are in the post variable as they exist in the form of a form and are therefore the variables.
In fact it only saves the new rows from javascript.
The trouble is that I can not do an update just because there are new lines.

Answer 1

<?php if(isset($_POST['enreg']))
{
$sql2="DELETE FROM scenarii WHERE code_s='".mysql_real_escape_string($_GET['code_s'])."'";
mysql_query($sql2) or die(__LINE__.mysql_error().$sql2);
foreach($_POST['data'] as $data){
if (!empty($data['code_s'])){
$sql7 = '
INSERT INTO scenarii SET
code_s = "'.mysql_real_escape_string($data['code_s']).'",
titre = "'.mysql_real_escape_string($data['titre']).'",
action = "'.mysql_real_escape_string($data['action']).'",
libelle = "'.mysql_real_escape_string($data['libelle']).'",
jour = "'.mysql_real_escape_string($data['jour']).'"' ;
mysql_query($sql7) or die(__LINE__.mysql_error().$sql7);
}
}
}
?>
put your delete query before foreach loop

Answer 2

afeter several hours of testing Ive seen that the delete request was in the loop for each so it has deleted all after all reinjection that is why I only have the last input left evry time.
Now I've deleted all and reinjected all after. It works properly.
What I do not understand is that i did not see it before.
Thanks to everybody for the help.