<?php
$obj = new stdClass;
$obj->{'123'} = '456'; // defined property but unusable as obj->property; see below.
print_r($obj);
echo 'Via {\'123\'}: ' . $obj->{'123'},"\n";
if (isset($obj->{'123'})) { echo '123 is set',"\n";}
// echo $obj->123; // Parse error: ...unexpected '123' (T_LNUMBER), expecting identifier (T_STRING) or variable (T_VARIABLE) or '{' or '$'
$obj->{'a123'} = $obj->{'123'};
print_r($obj);
echo 'Via Property a123: ' . $obj->a123,"\n";
// making a hash out of property a
$obj->a["123"] = $obj->{'123'};
$obj->a["a123"] = $obj->{'a123'};
var_dump($obj);
echo 'Via Property "a" and hashkey "123": ' . $obj->a["123"],"\n";
// contrast:
$obj = (object)array('123' => '456'); // property 123 is invalid
print_r($obj);
echo $obj->{'123'},"\n"; // so "Undefined property: stdClass::$123"
- Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- stdClass Object
(
[123] => 456
)
Via {'123'}: 456
123 is set
stdClass Object
(
[123] => 456
[a123] => 456
)
Via Property a123: 456
object(stdClass)#1 (3) {
["123"]=>
string(3) "456"
["a123"]=>
string(3) "456"
["a"]=>
array(2) {
[123]=>
string(3) "456"
["a123"]=>
string(3) "456"
}
}
Via Property "a" and hashkey "123": 456
stdClass Object
(
[123] => 456
)
456
- Output for 5.2.6 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
- stdClass Object
(
[123] => 456
)
Via {'123'}: 456
123 is set
stdClass Object
(
[123] => 456
[a123] => 456
)
Via Property a123: 456
object(stdClass)#1 (3) {
["123"]=>
string(3) "456"
["a123"]=>
string(3) "456"
["a"]=>
array(2) {
[123]=>
string(3) "456"
["a123"]=>
string(3) "456"
}
}
Via Property "a" and hashkey "123": 456
stdClass Object
(
[123] => 456
)
Notice: Undefined property: stdClass::$123 in /in/8D2aO on line 22
- Output for 5.0.0 - 5.0.5, 5.1.1 - 5.1.6, 5.2.0 - 5.2.5
- stdClass Object
(
[123] => 456
)
Via {'123'}: 456
123 is set
stdClass Object
(
[123] => 456
[a123] => 456
)
Via Property a123: 456
object(stdClass)#1 (3) {
["123"]=>
string(3) "456"
["a123"]=>
string(3) "456"
["a"]=>
array(2) {
[123]=>
string(3) "456"
["a123"]=>
string(3) "456"
}
}
Via Property "a" and hashkey "123": 456
stdClass Object
(
[123] => 456
)
Notice: Undefined property: stdClass::$123 in /in/8D2aO on line 22
- Output for 5.1.0
- Fatal error: fatal flex scanner internal error--end of buffer missed in /in/8D2aO on line 22
Process exited with code 255. - Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
- stdClass Object
(
[123] => 456
)
Via {'123'}: 456
123 is set
stdClass Object
(
[123] => 456
[a123] => 456
)
Via Property a123: 456
object(stdClass)(3) {
[123]=>
string(3) "456"
["a123"]=>
string(3) "456"
["a"]=>
array(2) {
[123]=>
string(3) "456"
["a123"]=>
string(3) "456"
}
}
Via Property "a" and hashkey "123": 456
stdClass Object
(
[123] => 456
)
456
preferences:
297.94 ms | 402 KiB | 456 Q