Good people,
I have these 4 Gets to collect, the same leaves another page. What I intend is ...
"Se apanhar($_GET) order, preço, comprador" {
mostra valores do $_GET...
} else {
erro.
}
How do I do this? Is it so?
if(isset($_GET['order'] || isset($_GET['preco'] || isset($_GET['comprador']) {
or so
if(isset($_GET['order'] AND isset($_GET['preco'] AND isset($_GET['comprador']) {
The isset() is not a function is a construct language, it has a differential that is pass N input arguments. This way validation is done on all arguments if one of them is not valid isset() returns false. It is the equivalent of connecting N condition with the logical AND operator ( && )
You can leave your code:
if(isset($_GET['order'], $_GET['preco'], $_GET['comprador'])){
echo 'válido';
}else{
echo 'inválido';
}
The code below is the first one.
if(isset($_GET['order']) && isset($_GET['preco']) && isset($_GET['comprador'])){
The correct one would be ...
if( isset($_GET['order']) && isset($_GET['preco']) && isset($_GET['comprador']) )
echo 'os 3 existem';
else
echo 'os 3 não existem';
You can change && to AND without problems.
There is another way, too, is to use array_diff that will check exactly the fields
<?php
$obrigatorios = ["order", "preco", "comprador"];
if (!array_diff($obrigatorios, array_keys($_GET))) {
echo "mostra valores do GET...";
} else {
echo "Erro";
}
Or you can use array_diff_assoc
<?php
$obrigatorios = ["order", "preco", "comprador"];
if( !array_diff_assoc($obrigatorios, array_keys($_GET)) ) {
echo "mostra valores do GET...";
} else {
echo "Erro";
}