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<?php class Test { function test(){ eval('call_user_func(function(){ echo isset($this) ? "Set<br/>" : "Not set<br/>"; var_dump($this); });'); } } $t = new Test; $t->test();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Set<br/>object(Test)#1 (0) { }
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; Test has a deprecated constructor in /in/gjmLE on line 2 Set<br/>object(Test)#1 (0) { } Set<br/>object(Test)#1 (0) { }
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.35, 5.6.0 - 5.6.21, 7.3.32 - 7.3.33, 7.4.26
Set<br/>object(Test)#1 (0) { } Set<br/>object(Test)#1 (0) { }
Output for 5.3.0 - 5.3.29
Not set<br/>NULL Not set<br/>NULL
Output for 5.2.3 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/gjmLE(4) : eval()'d code on line 1 Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/gjmLE(4) : eval()'d code on line 1
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.2
<br /> <b>Parse error</b>: syntax error, unexpected T_FUNCTION, expecting ')' in <b>/in/gjmLE(4) : eval()'d code</b> on line <b>1</b><br /> <br /> <b>Parse error</b>: syntax error, unexpected T_FUNCTION, expecting ')' in <b>/in/gjmLE(4) : eval()'d code</b> on line <b>1</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
<br /> <b>Parse error</b>: parse error, unexpected T_FUNCTION, expecting ')' in <b>/in/gjmLE(4) : eval()'d code</b> on line <b>1</b><br /> <br /> <b>Parse error</b>: parse error, unexpected T_FUNCTION, expecting ')' in <b>/in/gjmLE(4) : eval()'d code</b> on line <b>1</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error, expecting `')'' in <b>/in/gjmLE(4) : eval()'d code</b> on line <b>1</b><br /> <br /> <b>Parse error</b>: parse error, expecting `')'' in <b>/in/gjmLE(4) : eval()'d code</b> on line <b>1</b><br />
Process exited with code 255.

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