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[nsch2308]

or you can see whith:
echo $array[0].'</br>';
echo $array[1].'</br>';
echo $array[2].'</br>';
echo $array[3].'</br>';...

[nsch2308]

then you can test with this
$array = [3,2,1,5,6,7,4];
$val = usort($array, function ($a, $b)
{
//echo "COMPARING: {$a} with...

[nsch2308]

maybe,
by directly integrating the function in usort, to deepen

$array = [3,2,1,5,6,7,4];
$val = usort($array, function ($a,...

[nsch2308]

if this can help you here is how i insert a new id

on validate:

$trouver_maxi = "select max(id_utilisateurs) from utilisateurs...

[nsch2308]

for me you would rather have an error in the field data,
try to use addslashes to export your data, if you only export 19 fields,
there is...