3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace Foo\Bar; class A { } class B { public function __construct($type) { $fullType = 'Foo\\Bar\\' . $type; echo "try to create $fullType\n"; new $fullType; echo "$fullType created\n"; $fullType = $type::class; echo "try to create $type::class ($fullType)\n"; new $fullType; echo "$type::class ($fullType) created\n"; echo "try to create $type\n"; new $type; echo "$type created\n"; } } new A; new B('A');
Output for 8.3.0 - 8.3.6
try to create Foo\Bar\A Foo\Bar\A created Fatal error: Uncaught TypeError: Cannot use "::class" on string in /in/O1hpd:19 Stack trace: #0 /in/O1hpd(31): Foo\Bar\B->__construct('A') #1 {main} thrown in /in/O1hpd on line 19
Process exited with code 255.
Output for 8.1.23 - 8.1.28, 8.2.10 - 8.2.18
try to create Foo\Bar\A Foo\Bar\A created Fatal error: Uncaught TypeError: Cannot use "::class" on value of type string in /in/O1hpd:19 Stack trace: #0 /in/O1hpd(31): Foo\Bar\B->__construct('A') #1 {main} thrown in /in/O1hpd on line 19
Process exited with code 255.
Output for 5.4.0 - 5.4.24
Parse error: syntax error, unexpected 'class' (T_CLASS), expecting identifier (T_STRING) or variable (T_VARIABLE) or '{' or '$' in /in/O1hpd on line 19
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_CLASS, expecting T_STRING or T_VARIABLE or '$' in /in/O1hpd on line 19
Process exited with code 255.
preferences:
81.57 ms | 401 KiB | 81 Q