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<?php class Foo { private $_instNum; function __construct() { static $i = 0; $this->_instNum = $i++; $GLOBALS["_fooInst{$this->_instNum}"] = $this; eval("function _invokeFoo{$this->_instNum}() { \$args = func_get_args(); return call_user_func_array(array(\$GLOBALS['_fooInst{$this->_instNum}'], '__invoke'), \$args); }"); } function __invoke() { return 'goal!'; } function __toString() { return "_invokeFoo{$this->_instNum}"; } } $foo = new Foo; echo call_user_func("" + $foo);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: Unsupported operand types: string + Foo in /in/RAasF:23 Stack trace: #0 {main} thrown in /in/RAasF on line 23
Process exited with code 255.

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