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run code in 200+ php & hhvm versions
<?php function f_test(&$obj) { $obj->prop++; echo "prop=".$obj->prop." <br>\r\n"; } class clsTest { public $prop = 0; public $arg_array = false; function meth() { if ($this->arg_array===false) $this->arg_array = array(&$this); echo 'arg_array[0] '.(($this->arg_array[0]===$this) ? ' is the same instance' : ' is not the same instance').' than $this'." <br>\r\n"; call_user_func_array('f_test', $this->arg_array); } } $oTest = new clsTest; $oTest->meth(); // OK $oTest->meth(); // ERR ?>
based on Cl4mj
Output for 7.1.0 - 7.2.6
arg_array[0] is the same instance than $this <br> Warning: Parameter 1 to f_test() expected to be a reference, value given in /in/PSGk9 on line 14 prop=1 <br> arg_array[0] is the same instance than $this <br> Warning: Parameter 1 to f_test() expected to be a reference, value given in /in/PSGk9 on line 14 prop=2 <br>
Output for 5.0.0 - 5.2.17, 7.0.0 - 7.0.20
arg_array[0] is the same instance than $this <br> prop=1 <br> arg_array[0] is the same instance than $this <br> prop=2 <br>
Output for 5.3.0 - 5.6.28
arg_array[0] is the same instance than $this <br> prop=1 <br> arg_array[0] is the same instance than $this <br> Warning: Parameter 1 to f_test() expected to be a reference, value given in /in/PSGk9 on line 14
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/PSGk9 on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/PSGk9 on line 9
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/PSGk9 on line 9
Process exited with code 255.