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|
--TEST--
Test ?? operator
--FILE--
<?php
$var = 7;
$var2 = NULL;
$obj = new StdClass;
$obj->boo = 7;
$arr = [
2 => 7,
"foo" => "bar",
"foobar" => NULL,
"qux" => $obj,
"bing" => [
"bang"
]
];
function foobar() {
echo "called\n";
return ['a'];
}
var_dump($nonexistent_variable ?? 3);
echo PHP_EOL;
var_dump($var ?? 3);
var_dump($var2 ?? 3);
echo PHP_EOL;
var_dump($obj->boo ?? 3);
var_dump($obj->bing ?? 3);
var_dump($arr["qux"]->boo ?? 3);
var_dump($arr["qux"]->bing ?? 3);
echo PHP_EOL;
var_dump($arr[2] ?? 3);
var_dump($arr["foo"] ?? 3);
var_dump($arr["foobar"] ?? 3);
var_dump($arr["qux"] ?? 3);
var_dump($arr["bing"][0] ?? 3);
var_dump($arr["bing"][1] ?? 3);
echo PHP_EOL;
var_dump(foobar()[0] ?? false);
echo PHP_EOL;
function f($x)
{
printf("%s(%d)\n", __FUNCTION__, $x);
return $x;
}
$a = f(null) ?? f(1) ?? f(2);
?>
--EXPECTF--
int(3)
int(7)
int(3)
int(7)
int(3)
int(7)
int(3)
int(7)
string(3) "bar"
int(3)
object(stdClass)#%d (%d) {
["boo"]=>
int(7)
}
string(4) "bang"
int(3)
called
string(1) "a"
f(0)
f(1)
|
